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| Sl. No. | Item Description |
| 1 | SUB HEAD A - ACADEMIC ZONE |
| 2 | Supplying and spraying Aliphatic Polyurethane (PU) membrane (Moist cured) over the existing exposed terrace after completely replacing the existing pressed clay tiles, repairing the Khura and Gola etc., complete. The scope of work includes the following sequence of operations. (a) Removing the existing tiles with any type of overlay, bed mortar and preparing the surface to receive the new waterproofing layer. The rate including transporting and stacking the debris at designated location on ground within 50 metres lead and lift up to 5th floor level. (b) Resurfacing of the substrate with SBR Latex polymer modified cement mortar (Cement: sand ratio : 1:3 with a Water (Mixed with SBR Latex) cement ratio of 0.4-0.45), with a minimum thickness of 20 mm, to get a levelled surface. The dosage of SBR Latex will be 4 kgs per bag of cement. The rate should be inclusive of bonding coat with cement and latex mix of ratio 1:1 over the cleaned surface before application of mortar and including providing grooves to form grid of plan area not more than 4 Sqm. (c) Providing and laying pressed clay tile (clay tile of 18mm thick ) including bed mortar, as per approved pattern on roofs jointed with cement mortar 1:4 (1 cement : 4 coarse sand) mixed with 2% integral water proofing compound, laid over a bed of 20 mm thick cement mortar 1:4 (1 cement : 4 coarse sand) and finish neatly as required. (d) Raking out tile joints in cement mortar and preparing the surface and pointing with cement mortar of CM 1:3 (1 cement : 3 fine sand) admixed with 3 Kg of SBR latex per 50 kg of cement. |
| 3 | (e) Repairs to rain water mouth / Khura opening the existing damaged rain water mouth, dismantling the existing weathering course, removing the pipe and cleaning the surface etc. complete. the diameter of the opening should be more than 25cm around the rain water pipe to be fixed. The new rain water pipe to be fixed to the opening after installing swellable acrylic based PU water bar around the pipe, fixing the rain water pipe to the opening made and filling the gap between the rain water pipe and the opening with non shrink grout without any gap, applying a layer of cementitious water proof coating over the rainwater floor mouth (The rate is also inclusive of applying a layer of cementitious coating Cement : SBR 1:1 ratio over the wall floor junction before making khura) and finishing the surface neatly. Rate inclusive of providing adequate diameter and length of PVC pipe to connect to existing rainwater pipe. (f) Providing gola / coving 75x75 mm in cement concrete 1:2:4 admixed with 4 Ltr of SBR latex for 50 kg of cement (1 cement : 2 coarse sand : 4 stone aggregate 10 mm and down gauge), including finishing with cement mortar 1:3 admixed with 4 Ltr of SBR with 50 kg of cement (1 cement : 3 fine sand) as per standard design. The rate also inclusive of applying a layer of cementitious coating Cement : SBR 1:1 ratio over the wall floor junction before applying coving. |
| 4 | (g) Crack repair to parapet wall :-Cutting of crack mouth, as ‘V’ groove of 10 mm x 10 mm, & sealing with polyurethane sealant as per the manufacturers' specification and methodology.(h) Supplying and spraying single component Polyurethane (PU) water proofing coating which cures with the atmosphere humidity. The layer should produce a highly elastic membrane with strong adhesion to many types of surfaces. The product should be based on pure elastomeric hydrophobic polyurethane resin plus special inorganic fillers, to produce excellent mechanical, chemical, thermal, UV and natural element resistance properties. The product should be applied with airless spraying in two or more coats with minimum PU consumption as per manufacture specification. The rate is inclusive of necessary surface preparation to receive the waterproofing coating. The number of coat, coverage, thickness, priming coat, reinforcement etc., as per manufacture specification. |
| 5 | Supplying and spraying Polyurethane (PU) membrane (Moist cured) over the existing exposed terrace after replacing the damaged pressed clay tile wherever required (less than 10% of the overall area), repairing the Khura etc., complete. The scope of work includes the following sequence of operations.(a) Removing the existing damaged pressed clay tile including bed mortar or any other type of overlay and laying pressed clay tile ( tile of 18mm thick ) over the terrace as per approved pattern 18 mm nominal thickness of approved size . The tile shall be jointed with cement mortar 1:4 (1 cement : 4 coarse sand) mixed with 2% integral water proofing compound, laid over a bed of 20 mm thick cement mortar 1:4 (1 cement : 4 coarse sand) and finished neat complete. (The cost for this item will be paid separately in this schedule). (b) Raking out joints in cement mortar and preparing the surface and pointing with cement mortar of CM 1:3 (1 cement : 3 fine sand) admixed with 3 Kg of SBR latex per 50 kg of cement. |
| 6 | (c) Repairs to rain water mouth / Khura opening the existing damaged rain water mouth, dismantling the existing weathering course, removing the pipe and cleaning the surface etc. complete. the diameter of the opening should be more than 25cm around the rain water pipe to be fixed. The new rain water pipe to be fixed to the opening after installing swellable acrylic based PU water bar around the pipe, fixing the rain water pipe to the opening made and filling the gap between the rain water pipe and the opening with non shrink grout without any gap, applying a layer of cementitious water proof coating over the rainwater floor mouth (The rate is also inclusive of applying a layer of cementitious coating Cement : SBR 1:1 ratio over the wall floor junction before making khura) and finishing the surface neatly. Rate inclusive of providing adequate diameter and length of PVC pipe to connect to existing rainwater pipe.(d) Crack repair to parapet wall :-Cutting of crack mouth, as ‘V’ groove of 10 mm x 10 mm, & sealing with polyurethane sealant as per the manufacturers' specification and methodology. |
| 7 | (e) Supplying and spraying single component Polyurethane (PU) water proofing coating which cures with the atmosphere humidity. The layer should produce a highly elastic membrane with strong adhesion to many types of surfaces. The product should be based on pure elastomeric hydrophobic polyurethane resin plus special inorganic fillers, to produce excellent mechanical, chemical, thermal, UV and natural element resistance properties. The product should be applied with airless spraying in two or more coats with minimum PU consumption as per manufacturer specification. The rate is inclusive of necessary surface preparation to receive the waterproofing coating. The number of coat, coverage, thickness, priming coat, reinforcement etc., as per manufacture specification. |
| 8 | Supplying and applying Aliphatic Polyurethane (PU) membrane directly over the existing exposed terrace /surface after thorough cleaning including removal of any type of existing overlay, bed mortar and preparing the surface to receive the new waterproofing layer .(a) Supplying and spraying single component Polyurethane (PU) water proofing coating which cures with the atmosphere humidity. The layer should produce a highly elastic membrane with strong adhesion to many types of surfaces. The product should be based on pure elastomeric hydrophobic polyurethane resin plus special inorganic fillers, to produce excellent mechanical, chemical, thermal, UV and natural element resistance properties. The product should be applied with airless spraying in two or more coats with minimum PU consumption as per manufacturers specification. The rate is inclusive of necessary surface preparation to receive the waterproofing coating. The number of coat, coverage, thickness, priming coat, reinforcement etc., as per manufacture specification. |
| 9 | Supplying and applying of Aliphatic elastomeric polyurethane-polyurea hybrid waterproofing membrane directly over the existing exposed terrace /surface after thorough cleaning including removal of any type of existing overlay, bed mortar and preparing the surface to receive the new waterproofing layer .(a) Supplying and spraying single / two componentelastomeric polyurethane-polyurea hybrid waterproofing membrane which cures with the atmosphere humidity. The layer should produce a highly elastic membrane with strong adhesion to many types of surfaces. The product should be based on pure elastomeric hydrophobic polyurethane resin plus special inorganic fillers, to produce excellent mechanical, chemical, thermal, UV and natural element resistance properties. The product should be applied with airless spraying in two or more coats with minimum PU consumption as per manufacturers specification. The rate is inclusive of necessary surface preparation to receive the waterproofing coating. The number of coat, coverage, thickness, priming coat, reinforcement etc., as per manufacture specification. |
| 10 | Repairs to Water tank -Supplying and applying solvent free food grade PU coating for water tank floors and wall of thixotropic coating, based on high quality elastomeric polyurethane resins. The product can be roller applied with two or more coats over the primer coat with consumptions and application as per the manufacturer specification. The number of coat, coverage, thickness, priming coat, reinforcement etc., as per manufacture specification. |
| 11 | Subhead B - Pure polyurathane systemsProviding and laying multi layer pure polyurathane membrane (rapid curing ) as a top coat over the existing exposed terrace designed for pedestrian traffic after completely replacing the existing pressed clay tile, repairing the Khura and Gola etc., complete. The scope of work includes the following sequence of operations. (a) Removing the existing tiles with any type of overlay, bed mortar and preparing the surface to receive the new waterproofing layer. The rate including transporting and stacking the debris at designated location at ground within 50 metres lead and lift up to 5th floor level. (b) Resurfacing of the substrate with SBR Latex polymer modified cement mortar (Cement: sand ratio : 1:3 with a Water (Mixed with SBR Latex) cement ratio of 0.4-0.45), with a minimum thickness of 20 mm, to get a levelled surface. The dosage of SBR Latex will be 4 kgs per bag of cement. The rate should be inclusive of bonding coat with cement and latex mix of ratio 1:1 over the cleaned surface before application of mortar and including providing grooves to form grid of plan area not more than 4 Sqm. (c) Providing and laying pressed clay tile ( tile of 18mm thick ) including bed mortar, as per approved pattern on roofs jointed with cement mortar 1:4 (1 cement : 4 coarse sand) mixed with 2% integral water proofing compound, laid over a bed of 20 mm thick cement mortar 1:4 (1 cement : 4 coarse sand) and finish neatly as required. |
| 12 | (d) Raking out joints in cement mortar and preparing the surface and pointing with cement mortar of CM 1:3 (1 cement : 3 fine sand) admixed with 3 Kg of SBR latex per 50 kg of cement. e) Repairs to rain water mouth / Khura opening the existing damaged rain water mouth, dismantling the existing weathering course, removing the pipe and cleaning the surface etc. complete. the diameter of the opening should be more than 25cm around the rain water pipe to be fixed. The new rain water pipe to be fixed to the opening after installing swellable acrylic based PU water bar around the pipe, fixing the rain water pipe to the opening made and filling the gap between the rain water pipe and the opening with non shrink grout without any gap, applying a layer of cementitious water proof coating over the rainwater floor mouth (The rate is also inclusive of applying a layer of cementitious coating Cement : SBR 1:1 ratio over the wall floor junction before making khura) and finishing the surface neatly. Rate inclusive of providing adequate diameter and length of PVC pipe to connect to existing rainwater pipe.(f) Providing gola / coving 75x75 mm in cement concrete 1:2:4 admixed with 4 Ltr of SBR latex for 50 kg of cement (1 cement : 2 coarse sand : 4 stone aggregate 10 mm and down gauge), including finishing with cement mortar 1:3 admixed with 4 Ltr of SBR with 50 kg of cement (1 cement : 3 fine sand) as per standard design. The rate also inclusive of applying a layer of cementitious coating Cement : SBR 1:1 ratio over the wall floor junction before applying coving. |
| 13 | (g) Crack repair to parapet wall :-Cutting of crack mouth, as ‘V’ groove of 10 mm x 10 mm, & sealing with polyurethane sealant as per the manufacturers' specification and methodology. (h) Supplying and spraying of Pure Polyurethane waterproofing coating with rapid curing chemistry (MTC) based on Aliphatic single component Polyurethane system, Roofing system should be completely seamless & zero flame application with UV stable. The roofing system should be compatible with Bitumen and concrete surface and pedestrian traffic area. The rate inclusive of removing the existing membranes or any type of overlay over the existing weathering tile, preparing the surface thoroughly to receive the waterproofing coating etc., complete. The number of coat, coverage, thickness, priming coat, reinforcement etc., as per manufacture specification. |
| 14 | Providing and laying multi layer pure polyurathane membrane (rapid curing ) as a top coat over the existing exposed terrace designed for pedestrian traffic after replacing the damaged pressed clay tile wherever required (upto 10% overall area), repairing the Khura etc., complete. The scope of work includes the following sequence of operations. (a) Removing the existing damaged pressed clay tile including bed mortar or any other type of overlay and laying pressed clay tile (Saint Antony tile of 18mm thick ) over the terrace as per approved pattern 18 mm nominal thickness of approved size . The tile shall be jointed with cement mortar 1:4 (1 cement : 4 coarse sand) mixed with 2% integral water proofing compound, laid over a bed of 20 mm thick cement mortar 1:4 (1 cement : 4 coarse sand) and finished neat complete. (The cost for this item will be paid separately in this schedule) (b) Raking out joints in cement mortar and preparing the surface and pointing with cement mortar of CM 1:3 (1 cement : 3 fine sand) admixed with 3 Kg of SBR latex per 50 kg of cement. |
| 15 | c) Repairs to rain water mouth / Khura opening the existing damaged rain water mouth, dismantling the existing weathering course, removing the pipe and cleaning the surface etc. complete. the diameter of the opening should be more than 25cm around the rain water pipe to be fixed. The new rain water pipe to be fixed to the opening after installing swellable acrylic based PU water bar around the pipe, fixing the rain water pipe to the opening made and filling the gap between the rain water pipe and the opening with non shrink grout without any gap, applying a layer of cementitious water proof coating over the rainwater floor mouth (The rate is also inclusive of applying a layer of cementitious coating Cement : SBR 1:1 ratio over the wall floor junction before making khura) and finishing the surface neatly. Rate inclusive of providing adequate diameter and length of PVC pipe to connect to existing rainwater pipe.(d) Crack repair to parapet wall :-Cutting of crack mouth, as ‘V’ groove of 10 mm x 10 mm, & sealing with hybrid polyurethane sealant as per the manufacturers' specification and methodology. |
| 16 | (e) Supplying and spraying of Pure Polyurethane waterproofing coating with rapid curing based on Aliphatic single component Polyurethane system, . Roofing system should be completely seamless & zero flame application with UV stable. The roofing system should be compatible with Bitumen and concrete surface and pedestrian traffic area. The rate inclusive of removing the existing membranes or any type of overlay over the existing weathering tile, preparing the surface thoroughly to receive the waterproofing coating etc., complete. The number of coat, coverage, thickness, priming coat, reinforcement etc., as per manufacture specification. |
| 17 | Providing and laying pure polyurathane membrane (rapid curing ) as a top coat over the existing exposed terrace designed for pedestrian traffic after thorough cleaning and surface preparation . (a) Supplying and spraying of Pure Polyurethane waterproofing coating with (rapid curing) based on Aliphatic single component Polyurethane system, . Roofing system should be completely seamless & zero flame application with UV stable. The roofing system should be compatible with Bitumen and concrete surface and pedestrian traffic area. The rate inclusive of removing the existing membranes or any type of overlay over the existing weathering tile, preparing the surface thoroughly to receive the waterproofing coating etc., complete. The number of coat, coverage, thickness, priming coat, reinforcement etc., as per manufacture specification. |
| 18 | Roof treatment-New work after completely removing the exsisting weathering course and laying heat reflective tile- : Providing and laying single or more component PU membrane (moist cured) over the existing terrace including providing Khura and Gola, laying the heat reflective tile over the membrane etc., complete. The work should be carried out involving the following items, sequences and specifications.a) Dismantling the existing weathering course (maximum depth of 30cm thick) completely to expose the roof slab and cleaning the surface thoroughly. The rate inclusive of dismantling, bringing down the dismantled materials to ground level using proper pulley arrangement / chute etc., complete. No additional charges will be paid for removal of the existing WPM layers like membrane, coatings etc., The dismantling works shall be taken up without damaging the existing roof slab and other installations at the terrace.b) Polymer modified mortar :- Resurfacing of the substrate with Sika Latex (or MIXBOND SBR of FABCHEM, Rheomix 141 of BASF or Nitobond SBR of FOSROC) polymer modified cement mortar (Cement: sand ratio : 1:3 with a Water (Mixed with Sika Latex) cement ratio of 0.4-0.45), with a minimum thickness of 20 mm, to get a levelled surface. The dosage of Sika Latex will be 4 kgs per bag of cement. The rate should be inclusive of bonding coat with cement and latex mix of ratio 1:1 over the cleaned surface before application of mortar. |
| 19 | e) Supply and applying PU moist cured coating- Supplying and laying single or more component PU system using spray / roller application only. PU coating shall be two component polyurethane fluid which cures with the humidity in the atmosphere. It produces a highly elastic membrane with strong adhesion to many types of surfaces. It is based on pure elastomeric hydrophobic polyurethane resin plus special inorganic fillers, which result in excellent mechanical, chemical, thermal and natural element resistance properties. Apply with airless spraying in two or more coat as per manufactures specification and consumption. The rate inclusive of necessary surface preparation to receive the waterproofing coating etc., complete.f)Ponding test by storing water for a minimum depth of 20 cm and the water to be retained for not less than 48 hours or as required by engineer in charge to ascertain any leakage. Necessary repair / grouting to be done free cost to arrest any leakage observed.g)Geotextile:- Supply and apply a polyester based geotextile protection fleece. Product: Sarnafelt® 300 or equivalent approved by IITM. Product requirements: density ≥ 300 g/m2; thickness 2.4 mm; tensile strength ≥ 430 N/50mm; elongation at break ≤ 100 %; tear strength ≥ 250 N; puncture resistance ≥ 1600 N; cone drop: 13 mm. |
| 20 | h)Supplying and applying foam concrete / polystyrene light weight concrete of not less than M 2.5 grade and density not more than 1250 kg /cum with a cement content not less than 250 kg per cum. The rate inclusive of laying the light weight concrete at terrace level including pumping, laying, levelling to get the required slope, curing etc., complete. The concrete shall be laid to maintain slope to drain the rain water over the geotextile (not less than 1 in 80). The minimum cement contnent shall not less than 250 Kg/cum. The mix design shall be approved by the engineer incharge. Minimum thickness of the concrete shall be 5cm. i)Supplying and laying Heat Reflective Terrace Tiles (300 mm x 300 mm x thickness as per manufactures specification / not less than 8mm) manufactured by ABC or equivalent with SRI (solar refractive index) > 78, solar reflection >0.70 and emittance >0.75 on 30 mm thick mortar as per manufacturer specification on sloped surface of terrace, laid on water resistant cement slurry prepared in the ratio of 1:3 ( 1 cement and 3 abc plus powder and add 3% Nano Acryl by volume) and grouting the joints (>3mm) with abc Grout and PPF (Poly Propylene Fiber) in the ratio of 2 to 3 gm PPF per kg of abc Grout including wetting (by using a piece of sponge) the grouted surface by abc Nano Clear in the ratio of 100 ml in two liter water. , including providing skirting upto 300 mm height along the parapet wall in the same manner. |
| 21 | Subhead C- PVC Membrane Providing and laying PVC membrane of thickness 1.5mm over the existing surface after thorough surface preparation and laying of geotextile. The scope of work includes the following sequence of operations. (a) Supplying and laying a polyester based geotextile protection fleece having the following properties. Density ≥ 300 g/m2; thickness 2.4 mm; tensile strength ≥ 430 N/50mm; elongation at break ≥ 100 %; tear strength ≥ 250 N; puncture resistance ≥ 1600 N; cone drop 13mm. (b) PVC membrane:-Supplying and fixing multi-layer, premium-quality polyvinyl chloride (PVC) with an inlay of glass non-woven and a polyester fleece backing and has a lacquer coating applied to the top of the membrane to reduce staining from airborne dirt and pollutants. . Including complete installation using the loosely laid- mechanically fastened method as per manufacturer's method statement including overlapping, seam welding, detailing, fasteners, washers, welding chord etc. . The rate inclusive of terminating the vertical sides with suitable anchor fasteners, beadings and adhesive etc., to avoid pealing of the system and leakage. ( Product - with flowing specification of UV resistance Pass (>500 h/ grade 0) as per EN 1297,impact strength>450mm height (falling mass 0.5 kg) as per EN 12691; tensile strength>1000 N/50mm weather resistant ; elongation at break>10% as per EN m12311-2 SRI of 104 as per ASTME 1980-01) |
| 22 | (c) Termination of membrane with Termination & fixing with 4 nos SBF fastener (6.0x35 mm) per RM & sealing with polyurethane sealant as per manufacturers specification. The rate inclusive of labour, material, fixtures for termination, treatment to rainwater outlet etc. complete. |
| 23 | Providing and laying TPO membrane of thickness 1.5mm over the existing surface after thorough surface preparation and laying of geotextile. The scope of work includes the following sequence of operations. Polypropylene Alloy) reinforced membrane produced by extrusion of granules resulting from the incorporation of ethylene propylene rubber into a polypropylene matrix together with other additives as appropriate to the type of membrane. The membrane shall have two different colours for top & bottom , it is coloured grey on top and black on the underside for identify any damages that may occur during application. Membrane Laps are overlapped to achieve a minimum weld of 80mm. Laps shall be Hot air welded by hand applied or by means of automatic machines.The TPO membrane shall have the following properties:(i) Thickness : 1.5mm(ii) Tensile Strength : >9 N/mm²(iii) Eongation at break : > 950% (ASTM D 412)(iv) Puncture resistance > 1000mm : Pass (EN 12691)(v) Water impermeability : Pass (EN 1298 & EN 12691)(vi) Tear Resistance : 470 N (EN 12310 - 1)(vii) Root Resistance : Pass Test - No Penetration(viii) Lap joint strength : Pass Test (EN 12317 & UEATc) |
| 24 | Subhead D-Acrylic membrane Providing Multi layer high build heavy duty hybrid acrylic water-proof liquid applied membrane system over the plastered / screed or tiled terrace, roof and parapet surface - High build heavy duty Multi-layer reinforced water proofing system after removing the dust, fungus and other contaminants from the surface. Rate inclusive of crack repairing, deboned plaster must be repaired completely etc.,. 1. Prepare a base surface stabilising primer - Penetrative acrylic polymer liquid modified with cement as a bonding cum sealer coating over the prepared sound surface. 2. Providing and laying Polyester fibre fleece reinforcement (70gsm - saturated in polymer) over the primed surface with minimum overlapping of 50mm, levelling, finishing complete (Without bulging). 3. Applying two component acrylic polymer modified cementitious coating over the fleece layer. 4. Providing a pure acrylic transparent elastomeric water barrier coat. 5. P & L High viscus acrylic elastomeric water proof coat. 6. P & L Highbred acrylic High viscus waterproofing cum abrasion resistant top coat in grey as final coat. Note: The membrane coatings one over the other must have adequate interval in application and shall extend up to 300 mm height towards the adjacent wall and the edges shall be terminated as per manufacture's direction. The system specification, consumption, preparing, mixing and application of system components shall be strictly as per manufacture's specification. |
| 25 | Subhead E-PU grouting PU INJECTION GROUTING-PU resin based Foam forming injection grout-methodology and specification.1. Holes of 10mm dia shall be drilled on the leakage/damp spot in the Ceiling of the R.C slab using a portable Electric drill and a non-return ball-valve packer shall be fixed in the holes.2. Supplying and injecting PU based foam injection grout through the above fixed packers using a High-pressure one component Resin Injection pump until point of refusal. In case dripping of resin is observed through the packer hole, then the same shall be temporarily plugged with Instant plugging compound. The rate also inclusive of simultaneous injection of Acrylate Resin in the leak zone, this additional process would involve the fixing of an additional packer alongside the one fixed as above and the Acrylate resin shall be grouted with the same pump but after 24 hours of injecting . |
| 26 | PU INJECTION GROUTING-PU resin based permanent watersealing injection grout-methodology and specification.1. Holes of 10mm dia shall be drilled on the leakage/damp spot in the Ceiling of the R.C slab using a portable Electric drill and a non-return ball-valve packer shall be fixed in the holes.2. Supplying and injecting injection of Flexible tough foam forming PU based injection grout for permanent water sealing in the leak zone, this additional process would involve the fixing of an additional packer alongside the one fixed for PU foam injection for initial stopage of water and the PU flexible foam shall be grouted with the after 24 hours of injecting PU foam grout . |
| 27 | PU INJECTION GROUTING-Poly acrylic based reswelling injection grout watersealing injection grout-methodology and specification.1. Holes of 10mm dia shall be drilled on the leakage/damp spot in the Ceiling of the R.C slab using a portable Electric drill and a non-return ball-valve packer shall be fixed in the holes.2. Supplying and injecting injection of Flexible tough foam forming PU based injection grout for permanent water sealing in the leak zone, this additional process would involve the fixing of an additional packer alongside the one fixed for PU foam injection for initial stopage of water and the PU flexible foam shall be grouted with the after 24 hours of injecting PU foam grout . |
| 28 | CURTAIN INJECTING GROUTING JOINTS WITHMETHACRYLATE RESINS :- Supplying and applying methacrylate resins using suitable equipment. The rate inclusive of labour, nozzles, site preparation, removing the nozzle after application etc., complete.Preparation of site for injection, drilling and fixing of injection packers Supply & application of MC-Injekt GL- 95 TX Two components with sub- components a Swelling, flexibfe, waterproofing acrylate gel sealant using an electrical operated pressure injection Pump or by manual poring for a depth of 30-50 mm and width of150mm which includes cleaning of the pump with solvent after every injection, Machinery charges, oil, and other consumables like thinner, adaptors, flexible pipes, removing packers after injection cleaning region making the surface good, etc |
| 29 | Methodology and specification for micro fine cement / cable grout grouting.1. Holes of 18mm dia shall be drilled on the leakage/damp spot in the Ceiling of the R.C slab using a portable Electric drill and a PVC nozzle of suitable size shall be fixed in it.2. Injecting Cementitious Injection grout using micro fine Cement of average particle size of 4 to 5 micron of Ammbuja cement Slurry admixed with Non-shrink grout additives with Cement bag as per manufacture specification, through the above fixed nozzle until point of refusal. The nozzle shall then be plugged with Instant plugging compound.3. The nozzles can be removed the next day and the hole shall be plugged with instant leak plugging compound. |
| 30 | Epoxy grouting :Remove all dust and loose particles and place injection ports at spacing of 200 to 500mm center to center spacing depending on porosity of substrate, seal the cracks with epoxy putty followed by pressure grouting with Conbextra EP10 low viscous solvent free two component epoxy resin having density of 1050 kg/m³. The epoxy injecting materials shall have viscocity < 0.6 poise as per ASTM D1200, compressive strength > 80 MPa as per ASTM D 695 and bond strength > 4 MPa as per ASTM C882, etc, complete. Product used shall have CE (CE-29842) marking and compliance according to Construction Products Directive 89/106/EEC (CPD) |
| 31 | Providing and laying polyurethane sealant of up to 25mm width and 20mm thick with proper backer rod to create the expansion joint for large tile area. The sealant shall be polyurethane based low-modulus joint sealant filled in the joint by extruding using applicator gun cutting off the nozzle to achieve the correct bead size. The cured product produces 50% joint movement accommodation factor and shall have Specific Weight - ± 1.49 gm/cm3, Hardness ± 27 Shore A, Elongation at Break > 700% & Adhesion to concrete > 2 N/mm2. |
| 32 | Subhead F -Repair / maintenance Vertical expansion joint: Dismantling the existing expansion joint and repairing, refilling the expansion joint as per the following specification. The contractor can follow the dimension and specification as per the sample expansion joint constructed at SSB building wall. The rate inclusive of all necessary scaffolding required for works at all heights, disposing of all dismantled material outside the campus etc., complete.1. Cleaning the existing vertical expansion joint thoroughly, removing all filling materials, repairing the joints with suitable polymer modified mortar etc complete.2. Supplying and fixing of cross linked, semi-rigid, closed cell polyethylene sheet material used for forming or filling expansion joints between adjacent in-situ or precast components of 20 mm thick for the expansion joint as per manufacturer specification. The cost includes all scaffolding at all levels The width of board is 100 mm. The old expansion board shall be removed up to depth of 100 mm.3. Supplying and filling the expansion joints up to 40 mm width and depth of 2.5 mm with PU sealant on top of back up material with primer.4. Supply and fixing of aluminum sheets Indalco make 150 mm wide and 6mm thick to the wall with 6mm dia anchor fastner bolt nut system at specified spacing. Actual length shall be measured for payment. |
| 33 | Resurfacing of the substrate with SBR Latex polymer modified cement mortar (Cement: sand ratio : 1:3 with a Water (Mixed with SBR Latex) cement ratio of 0.4-0.45), with a minimum thickness of 20 mm, to get a levelled surface. The dosage of SBR Latex will be 4 kgs per bag of cement. The rate should be inclusive of bonding coat with cement and latex mix of ratio 1:1 over the cleaned surface before application of mortar and including providing grooves to form grid of plan area not more than 4 Sqm. |
| 34 | Repairs to rain water mouth / Khura opening the existing damaged rain water mouth, dismantling the existing weathering course, removing the pipe and cleaning the surface etc. complete. the diameter of the opening should be more than 25cm around the rain water pipe to be fixed. The new rain water pipe to be fixed to the opening after installing swellable acrylic based PU water bar around the pipe, fixing the rain water pipe to the opening made and filling the gap between the rain water pipe and the opening with non shrink grout without any gap, applying a layer of cementitious water proof coating over the rainwater floor mouth (The rate is also inclusive of applying a layer of cementitious coating Cement : SBR 1:1 ratio over the wall floor junction before making khura) and finishing the surface neatly. Rate inclusive of providing adequate diameter and length of PVC pipe to connect to existing rainwater pipe. |
| 35 | Providing gola / coving 75x75 mm in cement concrete 1:2:4 admixed with 4 Ltr of SBR latex for 50 kg of cement (1 cement : 2 coarse sand : 4 stone aggregate 10 mm and down gauge), including finishing with cement mortar 1:3 admixed with 4 Ltr of SBR with 50 kg of cement (1 cement : 3 fine sand) as per standard design. The rate also inclusive of applying a layer of cementitious coating Cement : SBR 1:1 ratio over the wall floor junction before applying coving. |
| 36 | Raking out the tile joints in Lime or Cement mortar and preparing the surface for re-pointing with cement mortar of CM 1:3 (1 cement : 3 fine sand) admixed with 3 Kg of SBR latex per 50 kg of cement. |
| 37 | Removing the existing damaged pressed clay tiles including bed mortar or any other type of overlay and laying new pressed clay tile (Saint Antony tile of 18mm thick ) over the terrace as per approved pattern using 18 mm nominal thickness tiles of approved size . The tile shall be jointed with cement mortar 1:4 (1 cement : 4 coarse sand) mixed with 2% integral water proofing compound, laid over a bed of 20 mm thick cement mortar 1:4 (1 cement : 4 coarse sand) and finished neat complete. |
| 38 | Crack repair to parapet wall / wall :-Cutting of crack mouth, as ‘V’ groove of 10 mm x 10 mm, & sealing with polyurethane sealant as per the manufacturers' specification and methodology. |
| 39 | Disposing the construction debris /waste and rubbish out side the IITM Campus through the lorry/truck including loading and unloading etc., complete. The rate should include necessary approvals from local authorities like municipality/corporation to transport or dispose the waste outside the campus complete as per the direction of Engineer in charge. (20% deduction by will be made against voids (if measured for loose stack) for calculating the debris volume for actual payment) |
| 40 | Butyl rubber compound flashing tape of 2mm thick :Providing and fixing butyl Rubber compound flashing tape ( membrane top surface finished with aluminium foil) with a minimum thickness 2mm over the metal sheet joint and concrete surface after thorough surface preparation by removing the dust and other contaminants. The membrane self adhesive membrane shall be neatly press to the area where the repairs to be taken after removing the release the paper / film. No additional payment will be made towards scaffolding and other arrangements required to complete the work. |
| 41 | Dismantling tile work in floors and roofs laid in cement mortar including stacking material within 50 metres lead. For thickness of tiles 10 mm to 25 mm |
| 42 | Dismantling the existing weathering course (depth upto 20cm thick) completely to expose the roof slab and cleaning the surface thoroughly. The rate inclusive of dismantling, bringing down the dismantled materials from terrace (upto 30m height) to ground level using proper pulley arrangement / chute / building's goods lift etc., complete. No additional charges will be paid for removal of the existing WPM layers like membrane, coatings etc., The dismantling works shall be taken up without damaging the existing roof slab and other installations at the terrace. |
| 43 | Supplying and applying foam concrete / polystyrene light weight concrete of not less than M 2.5 grade and density not more than 1250 kg /cum with a cement content not less than 250 kg per cum. The rate inclusive of laying the light weight concrete at terrace level including pumping, laying, levelling to get the required slope, curing etc., complete. |
| 44 | Providing and fixing Heat Resistant Terrace Tiles (300 mm x 300 mm x 9.5 mm) manufactured by ABC or equivalent brand as approved by IITM with SRI (solar refractive index) > 78, solar reflection >0.70 and emittance >0.75 on 30 mm thick cool mortar as per manufacturer specification on sloped surface of terrace, laid on water resistant cement slurry prepared in the ratio of 1:3 ( 1 cement and 3 abc plus powder and add 3% Nano Acryl by volume) and grouting the joints (>3mm) with abc Grout and PPF (Poly Propylene Fibre) in the ratio of 2 to 3 gm PPF per kg of abc Grout including wetting (by using a piece of sponge) the grouted surface by abc Nano Clear in the ratio of 100 ml in two liter water. , including providing skirting up to 300 mm height along the parapet wall in the same manner. |
| 45 | Applying super premium quality 100% Exterior pure Acrylics Latex based on Nanotechnology and Modified Silicon having VOC less than 50 gm/litre with carbonation resistant, crack bridging, dust and water repellant properties exterior paint of required shade. Repainting work (Two or more coats applied over and above priming coat : (Old work including complete scraping / surface preparation, as appropriate one coat base coat (primer) and top coat two or more coats). Applying exterior paint of approved colour, make, brand and surface coverage of painting as per the manufacturer specification. The exterior paint shall be applied over dry surface after complete scraping and removal of all loose or defective paint or powdery residue using mechanical methods with Zero dust vacuum technology followed with High pressure Jet washing and removal of algae growth if present followed by cracks filling and surface leveling wherever necessary and sealing the surface with necessary exterior base coat or primer before application of topcoat of exterior paint.The contractor should ensure complete covering of floors using tarpaulin / plastic sheet while taking up the work. The rate quoted shall be inclusive of charges towards all labour, material, transport, scaffolding, safety arrangements, Personal Protective Equipment’s (PPE), tools and plants etc. but excluding the cost of waterproofing, attending to leakages and major civil repair works if any. The Paint manufacturer shall inspect the work in every stage, submit inspection / field test report, certify the product / application and give 15year Guarantee. |
| 46 | scaffolding :Supplying and Erection of Double Scaffolding (Area shall be calculated by multiplying length and height of scaffolding) for carrying out of miscellaneous works at all levels and etc., complete as per Indian Standard or relevant codes. Rate inclusive of providing necssary covering the area with suitbale safety net etc., |
| 47 | Addition, Alteration, Renovation (SCHEDULE A : ACADEMIC ZONE ) (02-37) |
| 48 | SUB HEAD B - Hostel Zone |
| 49 | Subhead A - PU Systems Supplying and spraying Aliphatic Polyurethane (PU) membrane (Moist cured) over the existing exposed terrace after completely replacing the existing pressed clay tiles, repairing the Khura and Gola etc., complete. The scope of work includes the following sequence of operations. (a) Removing the existing tiles with any type of overlay, bed mortar and preparing the surface to receive the new waterproofing layer. The rate including transporting and stacking the debris at designated location on ground within 50 metres lead and lift up to 5th floor level. (b) Resurfacing of the substrate with SBR Latex polymer modified cement mortar (Cement: sand ratio : 1:3 with a Water (Mixed with SBR Latex) cement ratio of 0.4-0.45), with a minimum thickness of 20 mm, to get a levelled surface. The dosage of SBR Latex will be 4 kgs per bag of cement. The rate should be inclusive of bonding coat with cement and latex mix of ratio 1:1 over the cleaned surface before application of mortar and including providing grooves to form grid of plan area not more than 4 Sqm. (c) Providing and laying pressed clay tile (clay tile of 18mm thick ) including bed mortar, as per approved pattern on roofs jointed with cement mortar 1:4 (1 cement : 4 coarse sand) mixed with 2% integral water proofing compound, laid over a bed of 20 mm thick cement mortar 1:4 (1 cement : 4 coarse sand) and finish neatly as required. (d) Raking out tile joints in cement mortar and preparing the surface and pointing with cement mortar of CM 1:3 (1 cement : 3 fine sand) admixed with 3 Kg of SBR latex per 50 kg of cement. |
| 50 | (e) Repairs to rain water mouth / Khura opening the existing damaged rain water mouth, dismantling the existing weathering course, removing the pipe and cleaning the surface etc. complete. the diameter of the opening should be more than 25cm around the rain water pipe to be fixed. The new rain water pipe to be fixed to the opening after installing swellable acrylic based PU water bar around the pipe, fixing the rain water pipe to the opening made and filling the gap between the rain water pipe and the opening with non shrink grout without any gap, applying a layer of cementitious water proof coating over the rainwater floor mouth (The rate is also inclusive of applying a layer of cementitious coating Cement : SBR 1:1 ratio over the wall floor junction before making khura) and finishing the surface neatly. Rate inclusive of providing adequate diameter and length of PVC pipe to connect to existing rainwater pipe. (f) Providing gola / coving 75x75 mm in cement concrete 1:2:4 admixed with 4 Ltr of SBR latex for 50 kg of cement (1 cement : 2 coarse sand : 4 stone aggregate 10 mm and down gauge), including finishing with cement mortar 1:3 admixed with 4 Ltr of SBR with 50 kg of cement (1 cement : 3 fine sand) as per standard design. The rate also inclusive of applying a layer of cementitious coating Cement : SBR 1:1 ratio over the wall floor junction before applying coving. |
| 51 | (g) Crack repair to parapet wall :-Cutting of crack mouth, as ‘V’ groove of 10 mm x 10 mm, & sealing with polyurethane sealant as per the manufacturers' specification and methodology.(h) Supplying and spraying single component Polyurethane (PU) water proofing coating which cures with the atmosphere humidity. The layer should produce a highly elastic membrane with strong adhesion to many types of surfaces. The product should be based on pure elastomeric hydrophobic polyurethane resin plus special inorganic fillers, to produce excellent mechanical, chemical, thermal, UV and natural element resistance properties. The product should be applied with airless spraying in two or more coats with minimum PU consumption as per manufacture specification. The rate is inclusive of necessary surface preparation to receive the waterproofing coating. The number of coat, coverage, thickness, priming coat, reinforcement etc., as per manufacture specification. |
| 52 | Supplying and spraying Polyurethane (PU) membrane (Moist cured) over the existing exposed terrace after replacing the damaged pressed clay tile wherever required (less than 10% of the overall area), repairing the Khura etc., complete. The scope of work includes the following sequence of operations.(a) Removing the existing damaged pressed clay tile including bed mortar or any other type of overlay and laying pressed clay tile ( tile of 18mm thick ) over the terrace as per approved pattern 18 mm nominal thickness of approved size . The tile shall be jointed with cement mortar 1:4 (1 cement : 4 coarse sand) mixed with 2% integral water proofing compound, laid over a bed of 20 mm thick cement mortar 1:4 (1 cement : 4 coarse sand) and finished neat complete. (The cost for this item will be paid separately in this schedule). (b) Raking out joints in cement mortar and preparing the surface and pointing with cement mortar of CM 1:3 (1 cement : 3 fine sand) admixed with 3 Kg of SBR latex per 50 kg of cement. |
| 53 | (c) Repairs to rain water mouth / Khura opening the existing damaged rain water mouth, dismantling the existing weathering course, removing the pipe and cleaning the surface etc. complete. the diameter of the opening should be more than 25cm around the rain water pipe to be fixed. The new rain water pipe to be fixed to the opening after installing swellable acrylic based PU water bar around the pipe, fixing the rain water pipe to the opening made and filling the gap between the rain water pipe and the opening with non shrink grout without any gap, applying a layer of cementitious water proof coating over the rainwater floor mouth (The rate is also inclusive of applying a layer of cementitious coating Cement : SBR 1:1 ratio over the wall floor junction before making khura) and finishing the surface neatly. Rate inclusive of providing adequate diameter and length of PVC pipe to connect to existing rainwater pipe.(d) Crack repair to parapet wall :-Cutting of crack mouth, as ‘V’ groove of 10 mm x 10 mm, & sealing with polyurethane sealant as per the manufacturers' specification and methodology. |
| 54 | (e) Supplying and spraying single component Polyurethane (PU) water proofing coating which cures with the atmosphere humidity. The layer should produce a highly elastic membrane with strong adhesion to many types of surfaces. The product should be based on pure elastomeric hydrophobic polyurethane resin plus special inorganic fillers, to produce excellent mechanical, chemical, thermal, UV and natural element resistance properties. The product should be applied with airless spraying in two or more coats with minimum PU consumption as per manufacturer specification. The rate is inclusive of necessary surface preparation to receive the waterproofing coating. The number of coat, coverage, thickness, priming coat, reinforcement etc., as per manufacture specification. |
| 55 | Supplying and applying Aliphatic Polyurethane (PU) membrane directly over the existing exposed terrace /surface after thorough cleaning including removal of any type of existing overlay, bed mortar and preparing the surface to receive the new waterproofing layer .(a) Supplying and spraying single component Polyurethane (PU) water proofing coating which cures with the atmosphere humidity. The layer should produce a highly elastic membrane with strong adhesion to many types of surfaces. The product should be based on pure elastomeric hydrophobic polyurethane resin plus special inorganic fillers, to produce excellent mechanical, chemical, thermal, UV and natural element resistance properties. The product should be applied with airless spraying in two or more coats with minimum PU consumption as per manufacturers specification. The rate is inclusive of necessary surface preparation to receive the waterproofing coating. The number of coat, coverage, thickness, priming coat, reinforcement etc., as per manufacture specification. |
| 56 | Supplying and applying of Aliphatic elastomeric polyurethane-polyurea hybrid waterproofing membrane directly over the existing exposed terrace /surface after thorough cleaning including removal of any type of existing overlay, bed mortar and preparing the surface to receive the new waterproofing layer .(a) Supplying and spraying single / two componentelastomeric polyurethane-polyurea hybrid waterproofing membrane which cures with the atmosphere humidity. The layer should produce a highly elastic membrane with strong adhesion to many types of surfaces. The product should be based on pure elastomeric hydrophobic polyurethane resin plus special inorganic fillers, to produce excellent mechanical, chemical, thermal, UV and natural element resistance properties. The product should be applied with airless spraying in two or more coats with minimum PU consumption as per manufacturers specification. The rate is inclusive of necessary surface preparation to receive the waterproofing coating. The number of coat, coverage, thickness, priming coat, reinforcement etc., as per manufacture specification. |
| 57 | Repairs to Water tank -Supplying and applying solvent free food grade PU coating for water tank floors and wall of thixotropic coating, based on high quality elastomeric polyurethane resins. The product can be roller applied with two or more coats over the primer coat with consumptions and application as per the manufacturer specification. The number of coat, coverage, thickness, priming coat, reinforcement etc., as per manufacture specification. |
| 58 | Subhead B - Pure polyurathane systems Providing and laying multi layer pure polyurathane membrane (rapid curing ) as a top coat over the existing exposed terrace designed for pedestrian traffic after completely replacing the existing pressed clay tile, repairing the Khura and Gola etc., complete. The scope of work includes the following sequence of operations. (a) Removing the existing tiles with any type of overlay, bed mortar and preparing the surface to receive the new waterproofing layer. The rate including transporting and stacking the debris at designated location at ground within 50 metres lead and lift up to 5th floor level. (b) Resurfacing of the substrate with SBR Latex polymer modified cement mortar (Cement: sand ratio : 1:3 with a Water (Mixed with SBR Latex) cement ratio of 0.4-0.45), with a minimum thickness of 20 mm, to get a levelled surface. The dosage of SBR Latex will be 4 kgs per bag of cement. The rate should be inclusive of bonding coat with cement and latex mix of ratio 1:1 over the cleaned surface before application of mortar and including providing grooves to form grid of plan area not more than 4 Sqm. (c) Providing and laying pressed clay tile ( tile of 18mm thick ) including bed mortar, as per approved pattern on roofs jointed with cement mortar 1:4 (1 cement : 4 coarse sand) mixed with 2% integral water proofing compound, laid over a bed of 20 mm thick cement mortar 1:4 (1 cement : 4 coarse sand) and finish neatly as required. |
| 59 | (d) Raking out joints in cement mortar and preparing the surface and pointing with cement mortar of CM 1:3 (1 cement : 3 fine sand) admixed with 3 Kg of SBR latex per 50 kg of cement. e) Repairs to rain water mouth / Khura opening the existing damaged rain water mouth, dismantling the existing weathering course, removing the pipe and cleaning the surface etc. complete. the diameter of the opening should be more than 25cm around the rain water pipe to be fixed. The new rain water pipe to be fixed to the opening after installing swellable acrylic based PU water bar around the pipe, fixing the rain water pipe to the opening made and filling the gap between the rain water pipe and the opening with non shrink grout without any gap, applying a layer of cementitious water proof coating over the rainwater floor mouth (The rate is also inclusive of applying a layer of cementitious coating Cement : SBR 1:1 ratio over the wall floor junction before making khura) and finishing the surface neatly. Rate inclusive of providing adequate diameter and length of PVC pipe to connect to existing rainwater pipe.(f) Providing gola / coving 75x75 mm in cement concrete 1:2:4 admixed with 4 Ltr of SBR latex for 50 kg of cement (1 cement : 2 coarse sand : 4 stone aggregate 10 mm and down gauge), including finishing with cement mortar 1:3 admixed with 4 Ltr of SBR with 50 kg of cement (1 cement : 3 fine sand) as per standard design. The rate also inclusive of applying a layer of cementitious coating Cement : SBR 1:1 ratio over the wall floor junction before applying coving. |
| 60 | (g) Crack repair to parapet wall :-Cutting of crack mouth, as ‘V’ groove of 10 mm x 10 mm, & sealing with polyurethane sealant as per the manufacturers' specification and methodology. (h) Supplying and spraying of Pure Polyurethane waterproofing coating with rapid curing chemistry (MTC) based on Aliphatic single component Polyurethane system, Roofing system should be completely seamless & zero flame application with UV stable. The roofing system should be compatible with Bitumen and concrete surface and pedestrian traffic area. The rate inclusive of removing the existing membranes or any type of overlay over the existing weathering tile, preparing the surface thoroughly to receive the waterproofing coating etc., complete. The number of coat, coverage, thickness, priming coat, reinforcement etc., as per manufacture specification. |
| 61 | Providing and laying multi layer pure polyurathane membrane (rapid curing ) as a top coat over the existing exposed terrace designed for pedestrian traffic after replacing the damaged pressed clay tile wherever required (upto 10% overall area), repairing the Khura etc., complete. The scope of work includes the following sequence of operations. (a) Removing the existing damaged pressed clay tile including bed mortar or any other type of overlay and laying pressed clay tile (Saint Antony tile of 18mm thick ) over the terrace as per approved pattern 18 mm nominal thickness of approved size . The tile shall be jointed with cement mortar 1:4 (1 cement : 4 coarse sand) mixed with 2% integral water proofing compound, laid over a bed of 20 mm thick cement mortar 1:4 (1 cement : 4 coarse sand) and finished neat complete. (The cost for this item will be paid separately in this schedule) (b) Raking out joints in cement mortar and preparing the surface and pointing with cement mortar of CM 1:3 (1 cement : 3 fine sand) admixed with 3 Kg of SBR latex per 50 kg of cement. |
| 62 | c) Repairs to rain water mouth / Khura opening the existing damaged rain water mouth, dismantling the existing weathering course, removing the pipe and cleaning the surface etc. complete. the diameter of the opening should be more than 25cm around the rain water pipe to be fixed. The new rain water pipe to be fixed to the opening after installing swellable acrylic based PU water bar around the pipe, fixing the rain water pipe to the opening made and filling the gap between the rain water pipe and the opening with non shrink grout without any gap, applying a layer of cementitious water proof coating over the rainwater floor mouth (The rate is also inclusive of applying a layer of cementitious coating Cement : SBR 1:1 ratio over the wall floor junction before making khura) and finishing the surface neatly. Rate inclusive of providing adequate diameter and length of PVC pipe to connect to existing rainwater pipe.(d) Crack repair to parapet wall :-Cutting of crack mouth, as ‘V’ groove of 10 mm x 10 mm, & sealing with hybrid polyurethane sealant as per the manufacturers' specification and methodology. |
| 63 | (e) Supplying and spraying of Pure Polyurethane waterproofing coating with rapid curing based on Aliphatic single component Polyurethane system, . Roofing system should be completely seamless & zero flame application with UV stable. The roofing system should be compatible with Bitumen and concrete surface and pedestrian traffic area. The rate inclusive of removing the existing membranes or any type of overlay over the existing weathering tile, preparing the surface thoroughly to receive the waterproofing coating etc., complete. The number of coat, coverage, thickness, priming coat, reinforcement etc., as per manufacture specification. |
| 64 | Providing and laying pure polyurathane membrane (rapid curing ) as a top coat over the existing exposed terrace designed for pedestrian traffic after thorough cleaning and surface preparation . (a) Supplying and spraying of Pure Polyurethane waterproofing coating with (rapid curing) based on Aliphatic single component Polyurethane system, . Roofing system should be completely seamless & zero flame application with UV stable. The roofing system should be compatible with Bitumen and concrete surface and pedestrian traffic area. The rate inclusive of removing the existing membranes or any type of overlay over the existing weathering tile, preparing the surface thoroughly to receive the waterproofing coating etc., complete. The number of coat, coverage, thickness, priming coat, reinforcement etc., as per manufacture specification. |
| 65 | Roof treatment-New work after completely removing the exsisting weathering course and laying heat reflective tile- : Providing and laying single or more component PU membrane (moist cured) over the existing terrace including providing Khura and Gola, laying the heat reflective tile over the membrane etc., complete. The work should be carried out involving the following items, sequences and specifications.a) Dismantling the existing weathering course (maximum depth of 30cm thick) completely to expose the roof slab and cleaning the surface thoroughly. The rate inclusive of dismantling, bringing down the dismantled materials to ground level using proper pulley arrangement / chute etc., complete. No additional charges will be paid for removal of the existing WPM layers like membrane, coatings etc., The dismantling works shall be taken up without damaging the existing roof slab and other installations at the terrace.b) Polymer modified mortar :- Resurfacing of the substrate with Sika Latex (or MIXBOND SBR of FABCHEM, Rheomix 141 of BASF or Nitobond SBR of FOSROC) polymer modified cement mortar (Cement: sand ratio : 1:3 with a Water (Mixed with Sika Latex) cement ratio of 0.4-0.45), with a minimum thickness of 20 mm, to get a levelled surface. The dosage of Sika Latex will be 4 kgs per bag of cement. The rate should be inclusive of bonding coat with cement and latex mix of ratio 1:1 over the cleaned surface before application of mortar. |
| 66 | c)Treatment to rain water mouth / Khura- making opening for fixing the rain water pipe with a diameter of the opening should be more than 25cm around the rain water pipe to be fixed. The new rain water pipe to be fixed to the opening after installing swellable acrylic based PU water bar around the pipe, fixing the rain water pipe to the opening made and filling the gap between the rain water pipe and the opening with non shrink grout without any gap, applying a layer of cementitious water proof coating over the rainwater floor mouth (The rate also inclusive of applying a layer of cementitious coating Cement : SBR 1:1 ratio over the wall floor junction before applying coving) and finishing the surface neatly.d) Providing gola / coving 75x75 mm in cement concrete 1:2:4 admixed with 4 Ltr of SBR latex for 50 kg of cement (1 cement : 2 coarse sand : 4 stone aggregate 10 mm and down gauge), including finishing with cement mortar 1:3 admixed with 4 Ltr of SBR with 50 kg of cement (1 cement : 3 fine sand) as per standard design. The rate also inclusive of applying a layer of cementitious coating Cement : SBR 1:1 ratio over the wall floor junction before applying coving. |
| 67 | e) Supply and applying PU moist cured coating- Supplying and laying single or more component PU system using spray / roller application only. PU coating shall be two component polyurethane fluid which cures with the humidity in the atmosphere. It produces a highly elastic membrane with strong adhesion to many types of surfaces. It is based on pure elastomeric hydrophobic polyurethane resin plus special inorganic fillers, which result in excellent mechanical, chemical, thermal and natural element resistance properties. Apply with airless spraying in two or more coat as per manufactures specification and consumption. The rate inclusive of necessary surface preparation to receive the waterproofing coating etc., complete.f)Ponding test by storing water for a minimum depth of 20 cm and the water to be retained for not less than 48 hours or as required by engineer in charge to ascertain any leakage. Necessary repair / grouting to be done free cost to arrest any leakage observed.g)Geotextile:- Supply and apply a polyester based geotextile protection fleece. Product: Sarnafelt® 300 or equivalent approved by IITM. Product requirements: density ≥ 300 g/m2; thickness 2.4 mm; tensile strength ≥ 430 N/50mm; elongation at break ≤ 100 %; tear strength ≥ 250 N; puncture resistance ≥ 1600 N; cone drop: 13 mm. |
| 68 | h)Supplying and applying foam concrete / polystyrene light weight concrete of not less than M 2.5 grade and density not more than 1250 kg /cum with a cement content not less than 250 kg per cum. The rate inclusive of laying the light weight concrete at terrace level including pumping, laying, levelling to get the required slope, curing etc., complete. The concrete shall be laid to maintain slope to drain the rain water over the geotextile (not less than 1 in 80). The minimum cement contnent shall not less than 250 Kg/cum. The mix design shall be approved by the engineer incharge. Minimum thickness of the concrete shall be 5cm. i)Supplying and laying Heat Reflective Terrace Tiles (300 mm x 300 mm x thickness as per manufactures specification / not less than 8mm) manufactured by ABC or equivalent with SRI (solar refractive index) > 78, solar reflection >0.70 and emittance >0.75 on 30 mm thick mortar as per manufacturer specification on sloped surface of terrace, laid on water resistant cement slurry prepared in the ratio of 1:3 ( 1 cement and 3 abc plus powder and add 3% Nano Acryl by volume) and grouting the joints (>3mm) with abc Grout and PPF (Poly Propylene Fiber) in the ratio of 2 to 3 gm PPF per kg of abc Grout including wetting (by using a piece of sponge) the grouted surface by abc Nano Clear in the ratio of 100 ml in two liter water. , including providing skirting upto 300 mm height along the parapet wall in the same manner. |
| 69 | Subhead C- PVC Membrane Providing and laying PVC membrane of thickness 1.5mm over the existing surface after thorough surface preparation and laying of geotextile. The scope of work includes the following sequence of operations. (a) Supplying and laying a polyester based geotextile protection fleece having the following properties. Density ≥ 300 g/m2; thickness 2.4 mm; tensile strength ≥ 430 N/50mm; elongation at break ≥ 100 %; tear strength ≥ 250 N; puncture resistance ≥ 1600 N; cone drop 13mm. (b) PVC membrane:-Supplying and fixing multi-layer, premium-quality polyvinyl chloride (PVC) with an inlay of glass non-woven and a polyester fleece backing and has a lacquer coating applied to the top of the membrane to reduce staining from airborne dirt and pollutants. . Including complete installation using the loosely laid- mechanically fastened method as per manufacturer's method statement including overlapping, seam welding, detailing, fasteners, washers, welding chord etc. . The rate inclusive of terminating the vertical sides with suitable anchor fasteners, beadings and adhesive etc., to avoid pealing of the system and leakage. ( Product - with flowing specification of UV resistance Pass (>500 h/ grade 0) as per EN 1297,impact strength>450mm height (falling mass 0.5 kg) as per EN 12691; tensile strength>1000 N/50mm weather resistant ; elongation at break>10% as per EN m12311-2 SRI of 104 as per ASTME 1980-01) |
| 70 | (c) Termination of membrane with Termination & fixing with 4 nos SBF fastener (6.0x35 mm) per RM & sealing with polyurethane sealant as per manufacturers specification. The rate inclusive of labour, material, fixtures for termination, treatment to rainwater outlet etc. complete. |
| 71 | Providing and laying TPO membrane of thickness 1.5mm over the existing surface after thorough surface preparation and laying of geotextile. The scope of work includes the following sequence of operations. Polypropylene Alloy) reinforced membrane produced by extrusion of granules resulting from the incorporation of ethylene propylene rubber into a polypropylene matrix together with other additives as appropriate to the type of membrane. The membrane shall have two different colours for top & bottom , it is coloured grey on top and black on the underside for identify any damages that may occur during application. Membrane Laps are overlapped to achieve a minimum weld of 80mm. Laps shall be Hot air welded by hand applied or by means of automatic machines.The TPO membrane shall have the following properties:(i) Thickness : 1.5mm(ii) Tensile Strength : >9 N/mm²(iii) Eongation at break : > 950% (ASTM D 412)(iv) Puncture resistance > 1000mm : Pass (EN 12691)(v) Water impermeability : Pass (EN 1298 & EN 12691)(vi) Tear Resistance : 470 N (EN 12310 - 1)(vii) Root Resistance : Pass Test - No Penetration(viii) Lap joint strength : Pass Test (EN 12317 & UEATc) |
| 72 | Subhead D- Acrylic membrane Providing Multi layer high build heavy duty hybrid acrylic water-proof liquid applied membrane system over the plastered / screed or tiled terrace, roof and parapet surface - High build heavy duty Multi-layer reinforced water proofing system after removing the dust, fungus and other contaminants from the surface. Rate inclusive of crack repairing, deboned plaster must be repaired completely etc.,. 1. Prepare a base surface stabilising primer - Penetrative acrylic polymer liquid modified with cement as a bonding cum sealer coating over the prepared sound surface. 2. Providing and laying Polyester fibre fleece reinforcement (70gsm - saturated in polymer) over the primed surface with minimum overlapping of 50mm, levelling, finishing complete (Without bulging). 3. Applying two component acrylic polymer modified cementitious coating over the fleece layer. 4. Providing a pure acrylic transparent elastomeric water barrier coat. 5. P & L High viscus acrylic elastomeric water proof coat. 6. P & L Highbred acrylic High viscus waterproofing cum abrasion resistant top coat in grey as final coat. Note: The membrane coatings one over the other must have adequate interval in application and shall extend up to 300 mm height towards the adjacent wall and the edges shall be terminated as per manufacture's direction. The system specification, consumption, preparing, mixing and application of system components shall be strictly as per manufacture's specification. |
| 73 | Subhead E- PU Grouting PU INJECTION GROUTING-PU resin based Foam forming injection grout-methodology and specification.1. Holes of 10mm dia shall be drilled on the leakage/damp spot in the Ceiling of the R.C slab using a portable Electric drill and a non-return ball-valve packer shall be fixed in the holes.2. Supplying and injecting PU based foam injection grout through the above fixed packers using a High-pressure one component Resin Injection pump until point of refusal. In case dripping of resin is observed through the packer hole, then the same shall be temporarily plugged with Instant plugging compound. The rate also inclusive of simultaneous injection of Acrylate Resin in the leak zone, this additional process would involve the fixing of an additional packer alongside the one fixed as above and the Acrylate resin shall be grouted with the same pump but after 24 hours of injecting . |
| 74 | PU INJECTION GROUTING-PU resin based permanent watersealing injection grout-methodology and specification.1. Holes of 10mm dia shall be drilled on the leakage/damp spot in the Ceiling of the R.C slab using a portable Electric drill and a non-return ball-valve packer shall be fixed in the holes.2. Supplying and injecting injection of Flexible tough foam forming PU based injection grout for permanent water sealing in the leak zone, this additional process would involve the fixing of an additional packer alongside the one fixed for PU foam injection for initial stopage of water and the PU flexible foam shall be grouted with the after 24 hours of injecting PU foam grout . |
| 75 | PU INJECTION GROUTING-Poly acrylic based reswelling injection grout watersealing injection grout-methodology and specification.1. Holes of 10mm dia shall be drilled on the leakage/damp spot in the Ceiling of the R.C slab using a portable Electric drill and a non-return ball-valve packer shall be fixed in the holes.2. Supplying and injecting injection of Flexible tough foam forming PU based injection grout for permanent water sealing in the leak zone, this additional process would involve the fixing of an additional packer alongside the one fixed for PU foam injection for initial stopage of water and the PU flexible foam shall be grouted with the after 24 hours of injecting PU foam grout . |
| 76 | CURTAIN INJECTING GROUTING JOINTS WITHMETHACRYLATE RESINS :- Supplying and applying methacrylate resins using suitable equipment. The rate inclusive of labour, nozzles, site preparation, removing the nozzle after application etc., complete.Preparation of site for injection, drilling and fixing of injection packers Supply & application of MC-Injekt GL- 95 TX Two components with sub- components a Swelling, flexibfe, waterproofing acrylate gel sealant using an electrical operated pressure injection Pump or by manual poring for a depth of 30-50 mm and width of150mm which includes cleaning of the pump with solvent after every injection, Machinery charges, oil, and other consumables like thinner, adaptors, flexible pipes, removing packers after injection cleaning region making the surface good, etc |
| 77 | Methodology and specification for micro fine cement / cable grout grouting.1. Holes of 18mm dia shall be drilled on the leakage/damp spot in the Ceiling of the R.C slab using a portable Electric drill and a PVC nozzle of suitable size shall be fixed in it.2. Injecting Cementitious Injection grout using micro fine Cement of average particle size of 4 to 5 micron of Ammbuja cement Slurry admixed with Non-shrink grout additives with Cement bag as per manufacture specification, through the above fixed nozzle until point of refusal. The nozzle shall then be plugged with Instant plugging compound.3. The nozzles can be removed the next day and the hole shall be plugged with instant leak plugging compound. |
| 78 | Epoxy grouting :Remove all dust and loose particles and place injection ports at spacing of 200 to 500mm center to center spacing depending on porosity of substrate, seal the cracks with epoxy putty followed by pressure grouting with Conbextra EP10 low viscous solvent free two component epoxy resin having density of 1050 kg/m³. The epoxy injecting materials shall have viscocity < 0.6 poise as per ASTM D1200, compressive strength > 80 MPa as per ASTM D 695 and bond strength > 4 MPa as per ASTM C882, etc, complete. Product used shall have CE (CE-29842) marking and compliance according to Construction Products Directive 89/106/EEC (CPD) |
| 79 | Providing and laying polyurethane sealant of up to 25mm width and 20mm thick with proper backer rod to create the expansion joint for large tile area. The sealant shall be polyurethane based low-modulus joint sealant filled in the joint by extruding using applicator gun cutting off the nozzle to achieve the correct bead size. The cured product produces 50% joint movement accommodation factor and shall have Specific Weight - ± 1.49 gm/cm3, Hardness ± 27 Shore A, Elongation at Break > 700% & Adhesion to concrete > 2 N/mm2. |
| 80 | Subhead F - Repair / Maintenance Vertical expansion joint: Dismantling the existing expansion joint and repairing, refilling the expansion joint as per the following specification. The contractor can follow the dimension and specification as per the sample expansion joint constructed at SSB building wall. The rate inclusive of all necessary scaffolding required for works at all heights, disposing of all dismantled material outside the campus etc., complete.1. Cleaning the existing vertical expansion joint thoroughly, removing all filling materials, repairing the joints with suitable polymer modified mortar etc complete.2. Supplying and fixing of cross linked, semi-rigid, closed cell polyethylene sheet material used for forming or filling expansion joints between adjacent in-situ or precast components of 20 mm thick for the expansion joint as per manufacturer specification. The cost includes all scaffolding at all levels The width of board is 100 mm. The old expansion board shall be removed up to depth of 100 mm.3. Supplying and filling the expansion joints up to 40 mm width and depth of 2.5 mm with PU sealant on top of back up material with primer.4. Supply and fixing of aluminum sheets Indalco make 150 mm wide and 6mm thick to the wall with 6mm dia anchor fastner bolt nut system at specified spacing. Actual length shall be measured for payment. |
| 81 | Resurfacing of the substrate with SBR Latex polymer modified cement mortar (Cement: sand ratio : 1:3 with a Water (Mixed with SBR Latex) cement ratio of 0.4-0.45), with a minimum thickness of 20 mm, to get a levelled surface. The dosage of SBR Latex will be 4 kgs per bag of cement. The rate should be inclusive of bonding coat with cement and latex mix of ratio 1:1 over the cleaned surface before application of mortar and including providing grooves to form grid of plan area not more than 4 Sqm. |
| 82 | Repairs to rain water mouth / Khura opening the existing damaged rain water mouth, dismantling the existing weathering course, removing the pipe and cleaning the surface etc. complete. the diameter of the opening should be more than 25cm around the rain water pipe to be fixed. The new rain water pipe to be fixed to the opening after installing swellable acrylic based PU water bar around the pipe, fixing the rain water pipe to the opening made and filling the gap between the rain water pipe and the opening with non shrink grout without any gap, applying a layer of cementitious water proof coating over the rainwater floor mouth (The rate is also inclusive of applying a layer of cementitious coating Cement : SBR 1:1 ratio over the wall floor junction before making khura) and finishing the surface neatly. Rate inclusive of providing adequate diameter and length of PVC pipe to connect to existing rainwater pipe. |
| 83 | Providing gola / coving 75x75 mm deep chase in cement concrete 1:2:4 admixed with 4 Ltr of SBR latex for 50 kg of cement (1 cement : 2 coarse sand : 4 stone aggregate 10 mm and down gauge), including finishing with cement mortar 1:3 admixed with 4 Ltr of SBR with 50 kg of cement (1 cement : 3 fine sand) as per standard design. The rate also inclusive of applying a layer of cementitious coating Cement : SBR 1:1 ratio over the wall floor junction before applying coving. |
| 84 | Raking out the tile joints in Lime or Cement mortar and preparing the surface for re-pointing with cement mortar of CM 1:3 (1 cement : 3 fine sand) admixed with 3 Kg of SBR latex per 50 kg of cement. |
| 85 | Removing the existing damaged pressed clay tiles including bed mortar or any other type of overlay and laying pressed clay tile (Saint Antony tile of 18mm thick ) over the terrace as per approved pattern using 18 mm nominal thickness tiles of approved size . The tile shall be jointed with cement mortar 1:4 (1 cement : 4 coarse sand) mixed with 2% integral water proofing compound, laid over a bed of 20 mm thick cement mortar 1:4 (1 cement : 4 coarse sand) and finished neat complete. |
| 86 | Crack repair to parapet wall/wall: Cuttingof crack mouth as V groove of 10mmx10mm, sealing with polyurethane sealent as per manufactures specifications and methodology. |
| 87 | Disposing the construction debris /waste and rubbish out side the IITM Campus through the lorry/truck including loading and unloading etc., complete. The rate should include necessary approvals from local authorities like municipality/corporation to transport or dispose the waste outside the campus complete as per the direction of Engineer in charge. (20% deduction by will be made against voids (if measured for loose stack) for calculating the debris volume for actual payment). |
| 88 | Butyl rubber compound flashing tape of 2mm thick : Providing and fixing butyl Rubber compound flashing tape ( membrane top surface finished with aluminium foil) with a minimum thickness 2mm over the metal sheet joint and concrete surface after thorough surface preparation by removing the dust and other contaminants. The membrane self adhesive membrane shall be neatly press to the area where the repairs to be taken after removing the release the paper / film. No additional payment will be made towards scaffolding and other arrangements required to complete the work. |
| 89 | Dismantling tile work in floors and roofs laid in cement mortar including stacking material within 50 metres lead. For thickness of tiles 10 mm to 25 mm |
| 90 | Dismantling the existing weathering course (maximum depth of 20cm thick) completely to expose the roof slab and cleaning the surface thoroughly. The rate inclusive of dismantling, bringing down the dismantled materials to ground level using proper pulley arrangement / chute etc., complete. No additional charges will be paid for removal of the existing WPM layers like membrane, coatings etc., The dismantling works shall be taken up without damaging the existing roof slab and other installations at the terrace. |
| 91 | Supplying and applying foam concrete / polystyrene light weight concrete of not less than M 2.5 grade and density not more than 1250 kg /cum with a cement content not less than 250 kg per cum. The rate inclusive of laying the light weight concrete at terrace level including pumping, laying, levelling to get the required slope, curing etc., complete. |
| 92 | Providing and fixing Heat Resistant Terrace Tiles (300 mm x 300 mm x 9.5 mm) manufactured by ABC or equivalent brand as approved by IITM with SRI (solar refractive index) > 78, solar reflection >0.70 and emittance >0.75 on 30 mm thick cool mortar as per manufacturer specification on sloped surface of terrace, laid on water resistant cement slurry prepared in the ratio of 1:3 ( 1 cement and 3 abc plus powder and add 3% Nano Acryl by volume) and grouting the joints (>3mm) with abc Grout and PPF (Poly Propylene Fibre) in the ratio of 2 to 3 gm PPF per kg of abc Grout including wetting (by using a piece of sponge) the grouted surface by abc Nano Clear in the ratio of 100 ml in two liter water. , including providing skirting up to 300 mm height along the parapet wall in the same manner. |
| 93 | Applying super premium quality 100% Exterior pure Acrylics Latex based on Nanotechnology and Modified Silicon having VOC less than 50 gm/litre with carbonation resistant, crack bridging, dust and water repellant properties exterior paint of required shade. Repainting work (Two or more coats applied over and above priming coat : (Old work including complete scraping / surface preparation, as appropriate one coat base coat (primer) and top coat two or more coats). Applying exterior paint of approved colour, make, brand and surface coverage of painting as per the manufacturer specification. The exterior paint shall be applied over dry surface after complete scraping and removal of all loose or defective paint or powdery residue using mechanical methods with Zero dust vacuum technology followed with High pressure Jet washing and removal of algae growth if present followed by cracks filling and surface leveling wherever necessary and sealing the surface with necessary exterior base coat or primer before application of topcoat of exterior paint.The contractor should ensure complete covering of floors using tarpaulin / plastic sheet while taking up the work. The rate quoted shall be inclusive of charges towards all labour, material, transport, scaffolding, safety arrangements, Personal Protective Equipment’s (PPE), tools and plants etc. but excluding the cost of waterproofing, attending to leakages and major civil repair works if any. The Paint manufacturer shall inspect the work in every stage, submit inspection / field test report, certify the product / application and give 15year Guarantee. |
| 94 | Scaffolding :Supplying and Erection of Double Scaffolding (Area shall be calculated by multiplying length and height of scaffolding) for carrying out of miscellaneous works at all levels and etc., complete as per Indian Standard or relevant codes. Rate inclusive of providing necssary covering the area with suitbale safety net etc., |
| 95 | Addition, Alteration, Renovation (SCHEDULE A : Hostel Zone ) (76) |
| 96 | SUB HEAD C - Residential Zone |
| 97 | Subhead A - PU Systems Supplying and spraying Aliphatic Polyurethane (PU) membrane (Moist cured) over the existing exposed terrace after completely replacing the existing pressed clay tiles, repairing the Khura and Gola etc., complete. The scope of work includes the following sequence of operations. (a) Removing the existing tiles with any type of overlay, bed mortar and preparing the surface to receive the new waterproofing layer. The rate including transporting and stacking the debris at designated location on ground within 50 metres lead and lift up to 5th floor level. (b) Resurfacing of the substrate with SBR Latex polymer modified cement mortar (Cement: sand ratio : 1:3 with a Water (Mixed with SBR Latex) cement ratio of 0.4-0.45), with a minimum thickness of 20 mm, to get a levelled surface. The dosage of SBR Latex will be 4 kgs per bag of cement. The rate should be inclusive of bonding coat with cement and latex mix of ratio 1:1 over the cleaned surface before application of mortar and including providing grooves to form grid of plan area not more than 4 Sqm. (c) Providing and laying pressed clay tile (clay tile of 18mm thick ) including bed mortar, as per approved pattern on roofs jointed with cement mortar 1:4 (1 cement : 4 coarse sand) mixed with 2% integral water proofing compound, laid over a bed of 20 mm thick cement mortar 1:4 (1 cement : 4 coarse sand) and finish neatly as required. (d) Raking out tile joints in cement mortar and preparing the surface and pointing with cement mortar of CM 1:3 (1 cement : 3 fine sand) admixed with 3 Kg of SBR latex per 50 kg of cement. |
| 98 | (e) Repairs to rain water mouth / Khura opening the existing damaged rain water mouth, dismantling the existing weathering course, removing the pipe and cleaning the surface etc. complete. the diameter of the opening should be more than 25cm around the rain water pipe to be fixed. The new rain water pipe to be fixed to the opening after installing swellable acrylic based PU water bar around the pipe, fixing the rain water pipe to the opening made and filling the gap between the rain water pipe and the opening with non shrink grout without any gap, applying a layer of cementitious water proof coating over the rainwater floor mouth (The rate is also inclusive of applying a layer of cementitious coating Cement : SBR 1:1 ratio over the wall floor junction before making khura) and finishing the surface neatly. Rate inclusive of providing adequate diameter and length of PVC pipe to connect to existing rainwater pipe. (f) Providing gola / coving 75x75 mm in cement concrete 1:2:4 admixed with 4 Ltr of SBR latex for 50 kg of cement (1 cement : 2 coarse sand : 4 stone aggregate 10 mm and down gauge), including finishing with cement mortar 1:3 admixed with 4 Ltr of SBR with 50 kg of cement (1 cement : 3 fine sand) as per standard design. The rate also inclusive of applying a layer of cementitious coating Cement : SBR 1:1 ratio over the wall floor junction before applying coving. |
| 99 | (g) Crack repair to parapet wall :-Cutting of crack mouth, as ‘V’ groove of 10 mm x 10 mm, & sealing with polyurethane sealant as per the manufacturers' specification and methodology.(h) Supplying and spraying single component Polyurethane (PU) water proofing coating which cures with the atmosphere humidity. The layer should produce a highly elastic membrane with strong adhesion to many types of surfaces. The product should be based on pure elastomeric hydrophobic polyurethane resin plus special inorganic fillers, to produce excellent mechanical, chemical, thermal, UV and natural element resistance properties. The product should be applied with airless spraying in two or more coats with minimum PU consumption as per manufacture specification. The rate is inclusive of necessary surface preparation to receive the waterproofing coating. The number of coat, coverage, thickness, priming coat, reinforcement etc., as per manufacture specification. |
| 100 | Supplying and spraying Polyurethane (PU) membrane (Moist cured) over the existing exposed terrace after replacing the damaged pressed clay tile wherever required (less than 10% of the overall area), repairing the Khura etc., complete. The scope of work includes the following sequence of operations.(a) Removing the existing damaged pressed clay tile including bed mortar or any other type of overlay and laying pressed clay tile ( tile of 18mm thick ) over the terrace as per approved pattern 18 mm nominal thickness of approved size . The tile shall be jointed with cement mortar 1:4 (1 cement : 4 coarse sand) mixed with 2% integral water proofing compound, laid over a bed of 20 mm thick cement mortar 1:4 (1 cement : 4 coarse sand) and finished neat complete. (The cost for this item will be paid separately in this schedule). (b) Raking out joints in cement mortar and preparing the surface and pointing with cement mortar of CM 1:3 (1 cement : 3 fine sand) admixed with 3 Kg of SBR latex per 50 kg of cement. |
| 101 | (c) Repairs to rain water mouth / Khura opening the existing damaged rain water mouth, dismantling the existing weathering course, removing the pipe and cleaning the surface etc. complete. the diameter of the opening should be more than 25cm around the rain water pipe to be fixed. The new rain water pipe to be fixed to the opening after installing swellable acrylic based PU water bar around the pipe, fixing the rain water pipe to the opening made and filling the gap between the rain water pipe and the opening with non shrink grout without any gap, applying a layer of cementitious water proof coating over the rainwater floor mouth (The rate is also inclusive of applying a layer of cementitious coating Cement : SBR 1:1 ratio over the wall floor junction before making khura) and finishing the surface neatly. Rate inclusive of providing adequate diameter and length of PVC pipe to connect to existing rainwater pipe.(d) Crack repair to parapet wall :-Cutting of crack mouth, as ‘V’ groove of 10 mm x 10 mm, & sealing with polyurethane sealant as per the manufacturers' specification and methodology. |
| 102 | (e) Supplying and spraying single component Polyurethane (PU) water proofing coating which cures with the atmosphere humidity. The layer should produce a highly elastic membrane with strong adhesion to many types of surfaces. The product should be based on pure elastomeric hydrophobic polyurethane resin plus special inorganic fillers, to produce excellent mechanical, chemical, thermal, UV and natural element resistance properties. The product should be applied with airless spraying in two or more coats with minimum PU consumption as per manufacturer specification. The rate is inclusive of necessary surface preparation to receive the waterproofing coating. The number of coat, coverage, thickness, priming coat, reinforcement etc., as per manufacture specification. |
| 103 | Supplying and applying Aliphatic Polyurethane (PU) membrane directly over the existing exposed terrace /surface after thorough cleaning including removal of any type of existing overlay, bed mortar and preparing the surface to receive the new waterproofing layer .(a) Supplying and spraying single component Polyurethane (PU) water proofing coating which cures with the atmosphere humidity. The layer should produce a highly elastic membrane with strong adhesion to many types of surfaces. The product should be based on pure elastomeric hydrophobic polyurethane resin plus special inorganic fillers, to produce excellent mechanical, chemical, thermal, UV and natural element resistance properties. The product should be applied with airless spraying in two or more coats with minimum PU consumption as per manufacturers specification. The rate is inclusive of necessary surface preparation to receive the waterproofing coating. The number of coat, coverage, thickness, priming coat, reinforcement etc., as per manufacture specification. |
| 104 | Supplying and applying of Aliphatic elastomeric polyurethane-polyurea hybrid waterproofing membrane directly over the existing exposed terrace /surface after thorough cleaning including removal of any type of existing overlay, bed mortar and preparing the surface to receive the new waterproofing layer .(a) Supplying and spraying single / two componentelastomeric polyurethane-polyurea hybrid waterproofing membrane which cures with the atmosphere humidity. The layer should produce a highly elastic membrane with strong adhesion to many types of surfaces. The product should be based on pure elastomeric hydrophobic polyurethane resin plus special inorganic fillers, to produce excellent mechanical, chemical, thermal, UV and natural element resistance properties. The product should be applied with airless spraying in two or more coats with minimum PU consumption as per manufacturers specification. The rate is inclusive of necessary surface preparation to receive the waterproofing coating. The number of coat, coverage, thickness, priming coat, reinforcement etc., as per manufacture specification. |
| 105 | Repairs to Water tank -Supplying and applying solvent free food grade PU coating for water tank floors and wall of thixotropic coating, based on high quality elastomeric polyurethane resins. The product can be roller applied with two or more coats over the primer coat with consumptions and application as per the manufacturer specification. The number of coat, coverage, thickness, priming coat, reinforcement etc., as per manufacture specification. |
| 106 | Subhead B - Pure polyurathane systems Providing and laying multi layer pure polyurathane membrane (rapid curing ) as a top coat over the existing exposed terrace designed for pedestrian traffic after completely replacing the existing pressed clay tile, repairing the Khura and Gola etc., complete. The scope of work includes the following sequence of operations. (a) Removing the existing tiles with any type of overlay, bed mortar and preparing the surface to receive the new waterproofing layer. The rate including transporting and stacking the debris at designated location at ground within 50 metres lead and lift up to 5th floor level. (b) Resurfacing of the substrate with SBR Latex polymer modified cement mortar (Cement: sand ratio : 1:3 with a Water (Mixed with SBR Latex) cement ratio of 0.4-0.45), with a minimum thickness of 20 mm, to get a levelled surface. The dosage of SBR Latex will be 4 kgs per bag of cement. The rate should be inclusive of bonding coat with cement and latex mix of ratio 1:1 over the cleaned surface before application of mortar and including providing grooves to form grid of plan area not more than 4 Sqm. (c) Providing and laying pressed clay tile ( tile of 18mm thick ) including bed mortar, as per approved pattern on roofs jointed with cement mortar 1:4 (1 cement : 4 coarse sand) mixed with 2% integral water proofing compound, laid over a bed of 20 mm thick cement mortar 1:4 (1 cement : 4 coarse sand) and finish neatly as required. |
| 107 | (d) Raking out joints in cement mortar and preparing the surface and pointing with cement mortar of CM 1:3 (1 cement : 3 fine sand) admixed with 3 Kg of SBR latex per 50 kg of cement. e) Repairs to rain water mouth / Khura opening the existing damaged rain water mouth, dismantling the existing weathering course, removing the pipe and cleaning the surface etc. complete. the diameter of the opening should be more than 25cm around the rain water pipe to be fixed. The new rain water pipe to be fixed to the opening after installing swellable acrylic based PU water bar around the pipe, fixing the rain water pipe to the opening made and filling the gap between the rain water pipe and the opening with non shrink grout without any gap, applying a layer of cementitious water proof coating over the rainwater floor mouth (The rate is also inclusive of applying a layer of cementitious coating Cement : SBR 1:1 ratio over the wall floor junction before making khura) and finishing the surface neatly. Rate inclusive of providing adequate diameter and length of PVC pipe to connect to existing rainwater pipe.(f) Providing gola / coving 75x75 mm in cement concrete 1:2:4 admixed with 4 Ltr of SBR latex for 50 kg of cement (1 cement : 2 coarse sand : 4 stone aggregate 10 mm and down gauge), including finishing with cement mortar 1:3 admixed with 4 Ltr of SBR with 50 kg of cement (1 cement : 3 fine sand) as per standard design. The rate also inclusive of applying a layer of cementitious coating Cement : SBR 1:1 ratio over the wall floor junction before applying coving. |
| 108 | (g) Crack repair to parapet wall :-Cutting of crack mouth, as ‘V’ groove of 10 mm x 10 mm, & sealing with polyurethane sealant as per the manufacturers' specification and methodology. (h) Supplying and spraying of Pure Polyurethane waterproofing coating with rapid curing chemistry (MTC) based on Aliphatic single component Polyurethane system, Roofing system should be completely seamless & zero flame application with UV stable. The roofing system should be compatible with Bitumen and concrete surface and pedestrian traffic area. The rate inclusive of removing the existing membranes or any type of overlay over the existing weathering tile, preparing the surface thoroughly to receive the waterproofing coating etc., complete. The number of coat, coverage, thickness, priming coat, reinforcement etc., as per manufacture specification. |
| 109 | Providing and laying multi layer pure polyurathane membrane (rapid curing ) as a top coat over the existing exposed terrace designed for pedestrian traffic after replacing the damaged pressed clay tile wherever required (upto 10% overall area), repairing the Khura etc., complete. The scope of work includes the following sequence of operations. (a) Removing the existing damaged pressed clay tile including bed mortar or any other type of overlay and laying pressed clay tile (Saint Antony tile of 18mm thick ) over the terrace as per approved pattern 18 mm nominal thickness of approved size . The tile shall be jointed with cement mortar 1:4 (1 cement : 4 coarse sand) mixed with 2% integral water proofing compound, laid over a bed of 20 mm thick cement mortar 1:4 (1 cement : 4 coarse sand) and finished neat complete. (The cost for this item will be paid separately in this schedule) (b) Raking out joints in cement mortar and preparing the surface and pointing with cement mortar of CM 1:3 (1 cement : 3 fine sand) admixed with 3 Kg of SBR latex per 50 kg of cement. |
| 110 | c) Repairs to rain water mouth / Khura opening the existing damaged rain water mouth, dismantling the existing weathering course, removing the pipe and cleaning the surface etc. complete. the diameter of the opening should be more than 25cm around the rain water pipe to be fixed. The new rain water pipe to be fixed to the opening after installing swellable acrylic based PU water bar around the pipe, fixing the rain water pipe to the opening made and filling the gap between the rain water pipe and the opening with non shrink grout without any gap, applying a layer of cementitious water proof coating over the rainwater floor mouth (The rate is also inclusive of applying a layer of cementitious coating Cement : SBR 1:1 ratio over the wall floor junction before making khura) and finishing the surface neatly. Rate inclusive of providing adequate diameter and length of PVC pipe to connect to existing rainwater pipe.(d) Crack repair to parapet wall :-Cutting of crack mouth, as ‘V’ groove of 10 mm x 10 mm, & sealing with hybrid polyurethane sealant as per the manufacturers' specification and methodology. |
| 111 | (e) Supplying and spraying of Pure Polyurethane waterproofing coating with rapid curing based on Aliphatic single component Polyurethane system, . Roofing system should be completely seamless & zero flame application with UV stable. The roofing system should be compatible with Bitumen and concrete surface and pedestrian traffic area. The rate inclusive of removing the existing membranes or any type of overlay over the existing weathering tile, preparing the surface thoroughly to receive the waterproofing coating etc., complete. The number of coat, coverage, thickness, priming coat, reinforcement etc., as per manufacture specification. |
| 112 | Providing and laying pure polyurathane membrane (rapid curing ) as a top coat over the existing exposed terrace designed for pedestrian traffic after thorough cleaning and surface preparation . (a) Supplying and spraying of Pure Polyurethane waterproofing coating with (rapid curing) based on Aliphatic single component Polyurethane system, . Roofing system should be completely seamless & zero flame application with UV stable. The roofing system should be compatible with Bitumen and concrete surface and pedestrian traffic area. The rate inclusive of removing the existing membranes or any type of overlay over the existing weathering tile, preparing the surface thoroughly to receive the waterproofing coating etc., complete. The number of coat, coverage, thickness, priming coat, reinforcement etc., as per manufacture specification. |
| 113 | Roof treatment-New work after completely removing the exsisting weathering course and laying heat reflective tile- : Providing and laying single or more component PU membrane (moist cured) over the existing terrace including providing Khura and Gola, laying the heat reflective tile over the membrane etc., complete. The work should be carried out involving the following items, sequences and specifications.a) Dismantling the existing weathering course (maximum depth of 30cm thick) completely to expose the roof slab and cleaning the surface thoroughly. The rate inclusive of dismantling, bringing down the dismantled materials to ground level using proper pulley arrangement / chute etc., complete. No additional charges will be paid for removal of the existing WPM layers like membrane, coatings etc., The dismantling works shall be taken up without damaging the existing roof slab and other installations at the terrace.b) Polymer modified mortar :- Resurfacing of the substrate with Sika Latex (or MIXBOND SBR of FABCHEM, Rheomix 141 of BASF or Nitobond SBR of FOSROC) polymer modified cement mortar (Cement: sand ratio : 1:3 with a Water (Mixed with Sika Latex) cement ratio of 0.4-0.45), with a minimum thickness of 20 mm, to get a levelled surface. The dosage of Sika Latex will be 4 kgs per bag of cement. The rate should be inclusive of bonding coat with cement and latex mix of ratio 1:1 over the cleaned surface before application of mortar. |
| 114 | c)Treatment to rain water mouth / Khura- making opening for fixing the rain water pipe with a diameter of the opening should be more than 25cm around the rain water pipe to be fixed. The new rain water pipe to be fixed to the opening after installing swellable acrylic based PU water bar around the pipe, fixing the rain water pipe to the opening made and filling the gap between the rain water pipe and the opening with non shrink grout without any gap, applying a layer of cementitious water proof coating over the rainwater floor mouth (The rate also inclusive of applying a layer of cementitious coating Cement : SBR 1:1 ratio over the wall floor junction before applying coving) and finishing the surface neatly.d) Providing gola / coving 75x75 mm in cement concrete 1:2:4 admixed with 4 Ltr of SBR latex for 50 kg of cement (1 cement : 2 coarse sand : 4 stone aggregate 10 mm and down gauge), including finishing with cement mortar 1:3 admixed with 4 Ltr of SBR with 50 kg of cement (1 cement : 3 fine sand) as per standard design. The rate also inclusive of applying a layer of cementitious coating Cement : SBR 1:1 ratio over the wall floor junction before applying coving. |
| 115 | e) Supply and applying PU moist cured coating- Supplying and laying single or more component PU system using spray / roller application only. PU coating shall be two component polyurethane fluid which cures with the humidity in the atmosphere. It produces a highly elastic membrane with strong adhesion to many types of surfaces. It is based on pure elastomeric hydrophobic polyurethane resin plus special inorganic fillers, which result in excellent mechanical, chemical, thermal and natural element resistance properties. Apply with airless spraying in two or more coat as per manufactures specification and consumption. The rate inclusive of necessary surface preparation to receive the waterproofing coating etc., complete.f)Ponding test by storing water for a minimum depth of 20 cm and the water to be retained for not less than 48 hours or as required by engineer in charge to ascertain any leakage. Necessary repair / grouting to be done free cost to arrest any leakage observed.g)Geotextile:- Supply and apply a polyester based geotextile protection fleece. Product: Sarnafelt® 300 or equivalent approved by IITM. Product requirements: density ≥ 300 g/m2; thickness 2.4 mm; tensile strength ≥ 430 N/50mm; elongation at break ≤ 100 %; tear strength ≥ 250 N; puncture resistance ≥ 1600 N; cone drop: 13 mm. |
| 116 | h)Supplying and applying foam concrete / polystyrene light weight concrete of not less than M 2.5 grade and density not more than 1250 kg /cum with a cement content not less than 250 kg per cum. The rate inclusive of laying the light weight concrete at terrace level including pumping, laying, levelling to get the required slope, curing etc., complete. The concrete shall be laid to maintain slope to drain the rain water over the geotextile (not less than 1 in 80). The minimum cement contnent shall not less than 250 Kg/cum. The mix design shall be approved by the engineer incharge. Minimum thickness of the concrete shall be 5cm. i)Supplying and laying Heat Reflective Terrace Tiles (300 mm x 300 mm x thickness as per manufactures specification / not less than 8mm) manufactured by ABC or equivalent with SRI (solar refractive index) > 78, solar reflection >0.70 and emittance >0.75 on 30 mm thick mortar as per manufacturer specification on sloped surface of terrace, laid on water resistant cement slurry prepared in the ratio of 1:3 ( 1 cement and 3 abc plus powder and add 3% Nano Acryl by volume) and grouting the joints (>3mm) with abc Grout and PPF (Poly Propylene Fiber) in the ratio of 2 to 3 gm PPF per kg of abc Grout including wetting (by using a piece of sponge) the grouted surface by abc Nano Clear in the ratio of 100 ml in two liter water. , including providing skirting upto 300 mm height along the parapet wall in the same manner. |
| 117 | Subhead C- PVC Membrane Providing and laying PVC membrane of thickness 1.5mm over the existing surface after thorough surface preparation and laying of geotextile. The scope of work includes the following sequence of operations. (a) Supplying and laying a polyester based geotextile protection fleece having the following properties. Density ≥ 300 g/m2; thickness 2.4 mm; tensile strength ≥ 430 N/50mm; elongation at break ≥ 100 %; tear strength ≥ 250 N; puncture resistance ≥ 1600 N; cone drop 13mm. (b) PVC membrane:-Supplying and fixing multi-layer, premium-quality polyvinyl chloride (PVC) with an inlay of glass non-woven and a polyester fleece backing and has a lacquer coating applied to the top of the membrane to reduce staining from airborne dirt and pollutants. . Including complete installation using the loosely laid- mechanically fastened method as per manufacturer's method statement including overlapping, seam welding, detailing, fasteners, washers, welding chord etc. . The rate inclusive of terminating the vertical sides with suitable anchor fasteners, beadings and adhesive etc., to avoid pealing of the system and leakage. ( Product - with flowing specification of UV resistance Pass (>500 h/ grade 0) as per EN 1297,impact strength>450mm height (falling mass 0.5 kg) as per EN 12691; tensile strength>1000 N/50mm weather resistant ; elongation at break>10% as per EN m12311-2 SRI of 104 as per ASTME 1980-01) |
| 118 | (c) Termination of membrane with Termination & fixing with 4 nos SBF fastener (6.0x35 mm) per RM & sealing with polyurethane sealant as per manufacturers specification. The rate inclusive of labour, material, fixtures for termination, treatment to rainwater outlet etc. complete. |
| 119 | Providing and laying TPO membrane of thickness 1.5mm over the existing surface after thorough surface preparation and laying of geotextile. The scope of work includes the following sequence of operations. Polypropylene Alloy) reinforced membrane produced by extrusion of granules resulting from the incorporation of ethylene propylene rubber into a polypropylene matrix together with other additives as appropriate to the type of membrane. The membrane shall have two different colours for top & bottom , it is coloured grey on top and black on the underside for identify any damages that may occur during application. Membrane Laps are overlapped to achieve a minimum weld of 80mm. Laps shall be Hot air welded by hand applied or by means of automatic machines.The TPO membrane shall have the following properties:(i) Thickness : 1.5mm(ii) Tensile Strength : >9 N/mm²(iii) Eongation at break : > 950% (ASTM D 412)(iv) Puncture resistance > 1000mm : Pass (EN 12691)(v) Water impermeability : Pass (EN 1298 & EN 12691)(vi) Tear Resistance : 470 N (EN 12310 - 1)(vii) Root Resistance : Pass Test - No Penetration(viii) Lap joint strength : Pass Test (EN 12317 & UEATc) |
| 120 | Subhead D- Acrylic membrane Providing Multi layer high build heavy duty hybrid acrylic water-proof liquid applied membrane system over the plastered / screed or tiled terrace, roof and parapet surface - High build heavy duty Multi-layer reinforced water proofing system after removing the dust, fungus and other contaminants from the surface. Rate inclusive of crack repairing, deboned plaster must be repaired completely etc.,. 1. Prepare a base surface stabilising primer - Penetrative acrylic polymer liquid modified with cement as a bonding cum sealer coating over the prepared sound surface. 2. Providing and laying Polyester fibre fleece reinforcement (70gsm - saturated in polymer) over the primed surface with minimum overlapping of 50mm, levelling, finishing complete (Without bulging). 3. Applying two component acrylic polymer modified cementitious coating over the fleece layer. 4. Providing a pure acrylic transparent elastomeric water barrier coat. 5. P & L High viscus acrylic elastomeric water proof coat. 6. P & L Highbred acrylic High viscus waterproofing cum abrasion resistant top coat in grey as final coat. Note: The membrane coatings one over the other must have adequate interval in application and shall extend up to 300 mm height towards the adjacent wall and the edges shall be terminated as per manufacture's direction. The system specification, consumption, preparing, mixing and application of system components shall be strictly as per manufacture's specification. |
| 121 | Subhead E- PU Grouting PU INJECTION GROUTING-PU resin based Foam forming injection grout-methodology and specification.1. Holes of 10mm dia shall be drilled on the leakage/damp spot in the Ceiling of the R.C slab using a portable Electric drill and a non-return ball-valve packer shall be fixed in the holes.2. Supplying and injecting PU based foam injection grout through the above fixed packers using a High-pressure one component Resin Injection pump until point of refusal. In case dripping of resin is observed through the packer hole, then the same shall be temporarily plugged with Instant plugging compound. The rate also inclusive of simultaneous injection of Acrylate Resin in the leak zone, this additional process would involve the fixing of an additional packer alongside the one fixed as above and the Acrylate resin shall be grouted with the same pump but after 24 hours of injecting . |
| 122 | PU INJECTION GROUTING-PU resin based permanent watersealing injection grout-methodology and specification.1. Holes of 10mm dia shall be drilled on the leakage/damp spot in the Ceiling of the R.C slab using a portable Electric drill and a non-return ball-valve packer shall be fixed in the holes.2. Supplying and injecting injection of Flexible tough foam forming PU based injection grout for permanent water sealing in the leak zone, this additional process would involve the fixing of an additional packer alongside the one fixed for PU foam injection for initial stopage of water and the PU flexible foam shall be grouted with the after 24 hours of injecting PU foam grout . |
| 123 | PU INJECTION GROUTING-Poly acrylic based reswelling injection grout watersealing injection grout-methodology and specification.1. Holes of 10mm dia shall be drilled on the leakage/damp spot in the Ceiling of the R.C slab using a portable Electric drill and a non-return ball-valve packer shall be fixed in the holes.2. Supplying and injecting injection of Flexible tough foam forming PU based injection grout for permanent water sealing in the leak zone, this additional process would involve the fixing of an additional packer alongside the one fixed for PU foam injection for initial stopage of water and the PU flexible foam shall be grouted with the after 24 hours of injecting PU foam grout . |
| 124 | CURTAIN INJECTING GROUTING JOINTS WITHMETHACRYLATE RESINS :- Supplying and applying methacrylate resins using suitable equipment. The rate inclusive of labour, nozzles, site preparation, removing the nozzle after application etc., complete.Preparation of site for injection, drilling and fixing of injection packers Supply & application of MC-Injekt GL- 95 TX Two components with sub- components a Swelling, flexibfe, waterproofing acrylate gel sealant using an electrical operated pressure injection Pump or by manual poring for a depth of 30-50 mm and width of150mm which includes cleaning of the pump with solvent after every injection, Machinery charges, oil, and other consumables like thinner, adaptors, flexible pipes, removing packers after injection cleaning region making the surface good, etc |
| 125 | Methodology and specification for micro fine cement / cable grout grouting.1. Holes of 18mm dia shall be drilled on the leakage/damp spot in the Ceiling of the R.C slab using a portable Electric drill and a PVC nozzle of suitable size shall be fixed in it.2. Injecting Cementitious Injection grout using micro fine Cement of average particle size of 4 to 5 micron of Ammbuja cement Slurry admixed with Non-shrink grout additives with Cement bag as per manufacture specification, through the above fixed nozzle until point of refusal. The nozzle shall then be plugged with Instant plugging compound.3. The nozzles can be removed the next day and the hole shall be plugged with instant leak plugging compound. |
| 126 | Epoxy grouting :Remove all dust and loose particles and place injection ports at spacing of 200 to 500mm center to center spacing depending on porosity of substrate, seal the cracks with epoxy putty followed by pressure grouting with Conbextra EP10 low viscous solvent free two component epoxy resin having density of 1050 kg/m³. The epoxy injecting materials shall have viscocity < 0.6 poise as per ASTM D1200, compressive strength > 80 MPa as per ASTM D 695 and bond strength > 4 MPa as per ASTM C882, etc, complete. Product used shall have CE (CE-29842) marking and compliance according to Construction Products Directive 89/106/EEC (CPD) |
| 127 | Providing and laying polyurethane sealant of up to 25mm width and 20mm thick with proper backer rod to create the expansion joint for large tile area. The sealant shall be polyurethane based low-modulus joint sealant filled in the joint by extruding using applicator gun cutting off the nozzle to achieve the correct bead size. The cured product produces 50% joint movement accommodation factor and shall have Specific Weight - ± 1.49 gm/cm3, Hardness ± 27 Shore A, Elongation at Break > 700% & Adhesion to concrete > 2 N/mm2. |
| 128 | Subhead F - Repair / Maintenance Vertical expansion joint: Dismantling the existing expansion joint and repairing, refilling the expansion joint as per the following specification. The contractor can follow the dimension and specification as per the sample expansion joint constructed at SSB building wall. The rate inclusive of all necessary scaffolding required for works at all heights, disposing of all dismantled material outside the campus etc., complete.1. Cleaning the existing vertical expansion joint thoroughly, removing all filling materials, repairing the joints with suitable polymer modified mortar etc complete.2. Supplying and fixing of cross linked, semi-rigid, closed cell polyethylene sheet material used for forming or filling expansion joints between adjacent in-situ or precast components of 20 mm thick for the expansion joint as per manufacturer specification. The cost includes all scaffolding at all levels The width of board is 100 mm. The old expansion board shall be removed up to depth of 100 mm.3. Supplying and filling the expansion joints up to 40 mm width and depth of 2.5 mm with PU sealant on top of back up material with primer.4. Supply and fixing of aluminum sheets Indalco make 150 mm wide and 6mm thick to the wall with 6mm dia anchor fastner bolt nut system at specified spacing. Actual length shall be measured for payment. |
| 129 | Resurfacing of the substrate with SBR Latex polymer modified cement mortar (Cement: sand ratio : 1:3 with a Water (Mixed with SBR Latex) cement ratio of 0.4-0.45), with a minimum thickness of 20 mm, to get a levelled surface. The dosage of SBR Latex will be 4 kgs per bag of cement. The rate should be inclusive of bonding coat with cement and latex mix of ratio 1:1 over the cleaned surface before application of mortar and including providing grooves to form grid of plan area not more than 4 Sqm. |
| 130 | Repairs to rain water mouth / Khura opening the existing damaged rain water mouth, dismantling the existing weathering course, removing the pipe and cleaning the surface etc. complete. the diameter of the opening should be more than 25cm around the rain water pipe to be fixed. The new rain water pipe to be fixed to the opening after installing swellable acrylic based PU water bar around the pipe, fixing the rain water pipe to the opening made and filling the gap between the rain water pipe and the opening with non shrink grout without any gap, applying a layer of cementitious water proof coating over the rainwater floor mouth (The rate is also inclusive of applying a layer of cementitious coating Cement : SBR 1:1 ratio over the wall floor junction before making khura) and finishing the surface neatly. Rate inclusive of providing adequate diameter and length of PVC pipe to connect to existing rainwater pipe. |
| 131 | Providing gola / coving 75x75 mm deep chase in cement concrete 1:2:4 admixed with 4 Ltr of SBR latex for 50 kg of cement (1 cement : 2 coarse sand : 4 stone aggregate 10 mm and down gauge), including finishing with cement mortar 1:3 admixed with 4 Ltr of SBR with 50 kg of cement (1 cement : 3 fine sand) as per standard design. The rate also inclusive of applying a layer of cementitious coating Cement : SBR 1:1 ratio over the wall floor junction before applying coving. |
| 132 | Raking out the tile joints in Lime or Cement mortar and preparing the surface for re-pointing with cement mortar of CM 1:3 (1 cement : 3 fine sand) admixed with 3 Kg of SBR latex per 50 kg of cement. |
| 133 | Removing the existing damaged pressed clay tiles including bed mortar or any other type of overlay and laying pressed clay tile (Saint Antony tile of 18mm thick ) over the terrace as per approved pattern using 18 mm nominal thickness tiles of approved size . The tile shall be jointed with cement mortar 1:4 (1 cement : 4 coarse sand) mixed with 2% integral water proofing compound, laid over a bed of 20 mm thick cement mortar 1:4 (1 cement : 4 coarse sand) and finished neat complete. |
| 134 | Crack repair to parapet wall/wall: Cuttingof crack mouth as V groove of 10mmx10mm, sealing with polyurethane sealent as per manufactures specifications and methodology. |
| 135 | Disposing the construction debris /waste and rubbish out side the IITM Campus through the lorry/truck including loading and unloading etc., complete. The rate should include necessary approvals from local authorities like municipality/corporation to transport or dispose the waste outside the campus complete as per the direction of Engineer in charge. (20% deduction by will be made against voids (if measured for loose stack) for calculating the debris volume for actual payment). |
| 136 | Butyl rubber compound flashing tape of 2mm thick : Providing and fixing butyl Rubber compound flashing tape ( membrane top surface finished with aluminium foil) with a minimum thickness 2mm over the metal sheet joint and concrete surface after thorough surface preparation by removing the dust and other contaminants. The membrane self adhesive membrane shall be neatly press to the area where the repairs to be taken after removing the release the paper / film. No additional payment will be made towards scaffolding and other arrangements required to complete the work. |
| 137 | Dismantling tile work in floors and roofs laid in cement mortar including stacking material within 50 metres lead. For thickness of tiles 10 mm to 25 mm |
| 138 | Dismantling the existing weathering course (maximum depth of 20cm thick) completely to expose the roof slab and cleaning the surface thoroughly. The rate inclusive of dismantling, bringing down the dismantled materials to ground level using proper pulley arrangement / chute etc., complete. No additional charges will be paid for removal of the existing WPM layers like membrane, coatings etc., The dismantling works shall be taken up without damaging the existing roof slab and other installations at the terrace. |
| 139 | Supplying and applying foam concrete / polystyrene light weight concrete of not less than M 2.5 grade and density not more than 1250 kg /cum with a cement content not less than 250 kg per cum. The rate inclusive of laying the light weight concrete at terrace level including pumping, laying, levelling to get the required slope, curing etc., complete. |
| 140 | Providing and fixing Heat Resistant Terrace Tiles (300 mm x 300 mm x 9.5 mm) manufactured by ABC or equivalent brand as approved by IITM with SRI (solar refractive index) > 78, solar reflection >0.70 and emittance >0.75 on 30 mm thick cool mortar as per manufacturer specification on sloped surface of terrace, laid on water resistant cement slurry prepared in the ratio of 1:3 ( 1 cement and 3 abc plus powder and add 3% Nano Acryl by volume) and grouting the joints (>3mm) with abc Grout and PPF (Poly Propylene Fibre) in the ratio of 2 to 3 gm PPF per kg of abc Grout including wetting (by using a piece of sponge) the grouted surface by abc Nano Clear in the ratio of 100 ml in two liter water. , including providing skirting up to 300 mm height along the parapet wall in the same manner. |
| 141 | Applying super premium quality 100% Exterior pure Acrylics Latex based on Nanotechnology and Modified Silicon having VOC less than 50 gm/litre with carbonation resistant, crack bridging, dust and water repellant properties exterior paint of required shade. Repainting work (Two or more coats applied over and above priming coat : (Old work including complete scraping / surface preparation, as appropriate one coat base coat (primer) and top coat two or more coats). Applying exterior paint of approved colour, make, brand and surface coverage of painting as per the manufacturer specification. The exterior paint shall be applied over dry surface after complete scraping and removal of all loose or defective paint or powdery residue using mechanical methods with Zero dust vacuum technology followed with High pressure Jet washing and removal of algae growth if present followed by cracks filling and surface leveling wherever necessary and sealing the surface with necessary exterior base coat or primer before application of topcoat of exterior paint.The contractor should ensure complete covering of floors using tarpaulin / plastic sheet while taking up the work. The rate quoted shall be inclusive of charges towards all labour, material, transport, scaffolding, safety arrangements, Personal Protective Equipment’s (PPE), tools and plants etc. but excluding the cost of waterproofing, attending to leakages and major civil repair works if any. The Paint manufacturer shall inspect the work in every stage, submit inspection / field test report, certify the product / application and give 15year Guarantee. |
| 142 | Scaffolding :Supplying and Erection of Double Scaffolding (Area shall be calculated by multiplying length and height of scaffolding) for carrying out of miscellaneous works at all levels and etc., complete as per Indian Standard or relevant codes. Rate inclusive of providing necssary covering the area with suitbale safety net etc., |
| 143 | SCHEDULE C : Residential zone (78-112) |
| 144 | Special repair works: Waterproofing works and other related civil repair works in Academic, Hostel & residential zone buildings for the year 2025-26 and 2026-27 Sub head A : Academic zone |
| 145 | Special repair works: Waterproofing works and other related civil repair works in Academic, Hostel & residential zone buildings for the year 2025-26 and 2026-27 Sub head B : Hostel zone |
| 146 | Special repair works: Waterproofing works and other related civil repair works in Academic, Hostel & residential zone buildings for the year 2025-26 and 2026-27 Sub head C : Residential zone |
| 147 | Special repair works: Waterproofing works and other related civil repair works in Academic, Hostel & residential zone buildings for the year 2025-26 and 2026-27 |
| 148 | Special repair works: Waterproofing works and other related civil repair works in Academic, Hostel & residential zone buildings for the year 2025-26 and 2026-27 Sub head A : Academic zone |
| 149 | Special repair works: Waterproofing works and other related civil repair works in Academic, Hostel & residential zone buildings for the year 2025-26 and 2026-27 Sub head B : Hostel zone |
| 150 | Special repair works: Waterproofing works and other related civil repair works in Academic, Hostel & residential zone buildings for the year 2025-26 and 2026-27 Sub head C : Residential zone Please Enable Macros to View BoQ information |
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