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| Sl. No. | Item Description |
| 1 | Earth work excavation by mechanical means (Hydraulic excavator) / manual means in all types of soil other than soft and hard rock, dressing the sides of foundation, ramming of bottom etc. including shoring and dewatering (if necessary) and refilling with selected excavated earth in layers of not more than 500 mm thick, each layer well rammed and consolidated including disposing the surplus earth within a distance of 200 m all as per specifications including clearing Jungle, uprooting of vegetation, grass, etc. complete andas directed by the Engineer-in-charge(a) From 0.00 to 1.50 m depth from Average Ground Level |
| 2 | Supplying and injecting with approved quality chemical emulsion at the rates and concentrations as per IS 6313-2001 Part II for post Anti-termite treatment to existing buildings as per manufacturers specificationsand as directed by the Engineer-in-Charge. Work to be executed by approved agency and specified guarantee for 7 (Seven) years shall be furnished by the tenderer. Payment will be cleared only after submission of guarantee. |
| 3 | Providing and laying in position cement concrete of 1:3:6 (1 cement, 3 crushed sand, 6 graded stone aggregate of maximum size 20 mm) including consolidation, finishing, curing etc. complete as per specificationsand drawings but excluding the cost of Form work shuttering, centering Complete at all levels |
| 4 | Providing and laying in position Reinforced CementConcrete (RCC) of grade M-30 using 20mm maximum size aggregates and crushed sand of approved quality including admixtures of approved brand and quality (plasticiser or super plasticiser) if required, including weigh batching,mechanical mixing, transporting, placing, vibrating, consolidation, finishing, curing etc. complete but excluding the cost of centering, shuttering and reinforcement complete as per specificationsup to Plinth Level. |
| 5 | Providing and laying in position Reinforced CementConcrete (RCC) of grade M-30 using 20mm maximum size aggregates and crushed sand of approved quality including admixtures of approved brand and quality (plasticiser or super plasticiser) if required, including weigh batching,mechanical mixing, transporting, placing, vibrating, consolidation, finishing, curing etc. complete but excluding the cost of centering, shuttering and reinforcement complete as per specifications in super structureup to20.00 metre height.Note for items of item no. 3, 4 & 5-i)In view of limit on water-cement ratio for durability requirements, concrete admixtures (Naphthalene / Melamine based superplasticizers) can be used after taking prior approval of Engineer-in-Charge and the rates quoted for these items shall be inclusive of the cost of admixtures, trial mixes, testing (at site & at approved labs), etc. complete.ii) All projections, fins etc. in the concrete surface formed at the joints in the formwork should be ground & flush and finished at no extra cost.iii) Minimum cement content shall be as per latest revised relevant IS code. |
| 6 | Extra for RCC UsingReady Mix Concrete from outside project area including transporting andpumping from approved batching plants . |
| 7 | Providing Reinforcement Steel for reinforced cement concrete at all levels including supplying, preparation of bar bending schedules, cutting, bending, transporting, fixing, tieing in position with PVC coatedwith 1.6 mm dia soft drawn annealed G.I binding wire, all labour charges, cost of cover blocks in specified grade of concrete etc. complete including cost of binding wire, complete as per specifications and drawings. - Note: Using TMT bars of specified grades for all dia bars. TMT bars to be supplied by the contractor confirming to IS:1786. |
| 8 | Providing Structural steel work in M.S Plain Plates and chequrred Platesfor Embedded Parts, Trench Covers, Connection plates etc.including cutting, hoisting, fixing in position and applying a priming coat of approvedzinc chromate steel primer etc.including cost ofstructural steel Plates, welding all labour charges etc. complete as per drawings and specifications.Using materials of approved equivalent quality/ product meeting technical parameters.All test reports to be provided along with the supply of the materials Note: 1) Structural steel required for the work shall not be supplied by theDepartment and the contractor has to procure the same. 2)Welding weights, connections, bolts and nutsshall not be measured for payment, but the cost of which shall be deemed to have been included in the rate. 3)All holes will be made by drilling only.Gascutting of holes will not be permitted. |
| 9 | Providing Structural steel work using angles, channels, joists and other sections, weldedand / or bolted in built up sections for trusses , structural steel floors, frame works, monorails and other structuresincludingsupplying, cutting, welding, fabricating, hoisting, fixing in position, applying a priming coat of approved steel primer etc. complete all as per specifications, drawingsand as directed by theEngineer in charge.Up to and including 300 mm Joists, 350 mm channels, and below sections Using materials of approved equivalent quality/ product meeting technical parameters, confirming to IS 2062. All test reports to be provided along with the supply of the materials. Note: 1) Structural steel required for the work shall not be supplied by theDepartment and the contractor has to procure the same. 2)Welding weights, connections, bolts and nutsshall not be measured for payment, but the cost of which shall be deemed to have been included in the rate.3)All holes will be made by drilling only.Gascutting of holes will not be permitted. |
| 10 | Providing, centering, shuttering Form work using PVC film facedplywood to get a neat form finish surface for all types of structures including necessary strutting, proping, staging, supports etc and deshuttering the same after the specified time all as per drawings, specifications and as directed by the Engineer-in-charge at all levels (a)For Sub Structure |
| 11 | Providing, centering,shuttering Form work using PVC film facedplywood to get a neat form finish surface for all types of structures including necessary strutting, proping, staging, supports etc and deshuttering the same after the specified time all as per drawings, specifications and as directed by the Engineer-in-charge at all levels (b)For Super Structure |
| 12 | Providing and constructing Half brick masonry using Flyash/ FlyashLime brickswith minimum 70 kg / Sq.cm strength of approved equivalent quality or product meeting technical specification and size in partition walls in C.M 1:4 (using crushed sand) including scaffolding, raking out joints, curing etc. complete and with stiffners of RCC 1:2:4 (105 X 75 mm size) at every 900 mm height including form work curing etc. complete as per specifications but excluding reinforcement in Super Structure up to Floor - II level. (Reinforcement will be paid under relevant item) |
| 13 | Providing and constructing brickwork in cement mortar1:6 using crushed sand withFlyash/ FlyashLime bricks with minimum 70 kg/ Sq.cm strength of approved equivalent quality or product meeting technical specification and size in super structure above plinth up to and including FloorIIlevel including, scaffolding, raking out joints, curing, cleaning complete all as per specifications and drawings. |
| 14 | Providing and constructing Random Rubble masonry using approved Rubble stone in foundation and plinth in C.M 1:6(using crushed sand) including raking out joints or simultaneous flush pointing below ground level / plinth level, curing etc. completeas per drawings and specifications. |
| 15 | Providing and constructing Random Rubble masonry using approved Rubble stone in super structure (above plinth)in C.M 1:6(using crushed sand) including raking out joints or simultaneous flush pointing above ground level / plinth leveland up to and including 20 m heightincluding scaffolding, curing etc. complete as per drawings and specifications. |
| 16 | Providing Raised and cutpointing on stone with cement mortar 1:3 using crushed sand as per specifications and as directed at site by the Engineer-in-charge. |
| 17 | Providing 15mm thick plastering using Ready mix internal plastering compound of approved equivalent quality or product meeting technical specification for internalfaces of brickwork / concrete surfaces including preparation of the surface, curing, cleaning, scaffolding completeall as per specifications and as directed at site by the Engineer-in-charge |
| 18 | Providing20 mm thick plastering using Ready mixexternal plastering compound of approved equivalent quality or product meeting technical specification for external faces of brickwork / concrete surfaces including preparation of the surface, curing, cleaningscaffoldingup to 10 metres height complete.all as per specifications including forming drip moulds wherever necessary and as directed by the Engineer-in-charge |
| 19 | Providing and fixingG.I. chicken mesh in the junctions of concrete & brick work / masonry or as directed by the Engineer in charge including cutting, fixing with nails in position before plasteringcomplete all as directed by the Engineer-in-charge. (only area of the chicken mesh used alone will be measured) |
| 20 | Supplying, stacking and laying of 230 mm thickrubble soling stones as under floor baseincluding packing with smaller stone and compacting, ramming including spreading and consolidation of blinding material, moorum etc. complete all as per specifications and as directed by the Engineer-in-charge |
| 21 | Providing and fixing glazing in aluminium doors, window, ventilator shutters and partitions etc with PVC / Neoprene gasket etc. complete as per the architectural drawings and directions of the Engineer-in-charge (Cost of snap beading shall be paid in basic item)Withclear float glass panes of 5.00 mm thickness |
| 22 | Providing and fixing anodized aluminium work for doors, windows, ventilators and partitions with extruded built up standard tubular sections / Z sections and other sections of approved make conforming to IS 733 and IS 1285 fixed with rawl plugs and screws or with fixing clips or with expansion hold fastners including necessary filling up of gaps at junctions, at top, bottom and sides with required PVC / neoprene gasket etc. Aluminium sections shall be smooth, rust free, straight, mitred and jointed mechanically whereever required including cleat angle, aluminium snap beading for glazing / panelling, C.P brass / stainless screws all complete as per drawings and and directions of Engineer-in-charge including providing and fixing hinges / pivots and making provision for fixing of fittings wherever required including the cost of PVC / neoprene gasket required filling the gaps using silicon grout sealent etc. (fittings glazing and panelling shall be paid for separately) |
| 23 | Anodised Aluminium sections (Minimum anodizing thickness of 15 micron) |
| 24 | Extrafor Colour Anodizing / Dyed anodizing on Aluminium sections & sheets |
| 25 | Providing and Fixing in position Aluminium chequered plates of 4 mm thick for approaches over roofing sheet and other related aluminium work with 15 micron natural Aluminium colour, anodized aluminium sheets manufactured to relevant IS codes & including cost of Stainless steel screws, mastic filling, weather strips,nuts, washers etc. as required and as per drawing etc. all complete at all heights and as directed by the Engineer-in-Charge. |
| 26 | Providing and applying wall painting two coats on new work with premium plastic emulsion paint of approved brand to give an even shade, including a coat of approved cement primer, including preparation of the surfaces, scaffolding complete. as per specifications and as directed by the Engineer-in-charge. |
| 27 | Providing and fixing double tubular scaffolding system using H- frames with cup lock type on the exterior side upto seven story height made with 40 mm dia M.S. tube 1.5 m centre to centre horizontal and vertical tubes joining with cup and lock system with M.S. tubes, M.S. tube challies, M.S clamps and M.S staircase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for the required duration as approved and removing it thereafter. The scaffolding system shall be stiffened with bracings, runners, connection with building etc. wherever required for inspection of work at required locations with essential safety features for the workmen etc. complete as per directions and as approved by the Engineer -in - charge. The elevational area of the scaffolding shall be measured for payment purposes. The payment shall be made once irrespective of duration of scaffolding. |
| 28 | Providing and applying white cement based wall putty of approved equivalent quality or product meeting technical specification over concrete or Plastered surfaceup to 3 mm thickto get uniform surface free from undulationincluding cleaning complete all as directed by the Engineer-in-charge |
| 29 | Providing , applying one coat of acrylic based textured plaster of approved equivalent quality or product meeting technical specificationwith the finish as directed with average thickness of 2.50 mm and finished with 2 coats of high performance coating of approved shadeincluding preparation of the surfaces,complete. as per specifications and as directed by the Engineer-in-charge. |
| 30 | Providing and applying French spirit polishing for wooden sufaceswith twocoats on new works including a coat of wood filler to form a uniform neat finishas directed by the Engineer -in-charge and / or as per the specifications complete as directed by the Engieer-in-charge |
| 31 | Providing and applying white cement based wall putty over concrete or Plastered surface minimum 3 mm and up to 6 mmthickto get uniform surface free from undulation including cleaning complete all as directed at site. |
| 32 | Lead charges of debris for lead Exceeding 2 KM but not exceeding 3 KM, by mechanical transport including loading, unloading, stacking / levelling etc. Note: The rate is applicable for NET Quantities arrived at after making deduction for voids @ 30% from corresponding TRUCK Measurement. |
| 33 | Lead charges of soil for lead exceeding 2 KM but not exceeding 3 KM, by mechanical transport including loading, unloading, stacking / levelling etc.Note: The rate is applicable for NET Quantities arrived at after making deduction for voids @ 20% from corresponding TRUCK Measurement. |
| 34 | Providing and constructing Inspection chambers of Internal size clear dimension of 900 x 600 mm in 230 thick brick masonry with cement mortar 1:4over a bed of 150 mm thick 1:4:8 cement concrete foundation, plastering with cement mortar 1:4, 20 mm thick on inside, out side and all exposed sufaces finished with a floating coat of neat cement, brick corbelling at top to provide opening of 900 X 450 mm, embedding the frame and cover with CC 1:2:4 concrete, and fixing cast iron steps if necessary at 300mm intervals complete . Depth of chamber not exceeding 900 mm. (excavation, soling, cast iron cover and C.I steps will be paid separately under relevant item) |
| 35 | Extra depth over initial depth of 900 mm for chambers of 900 x 600 mm internal size.including fixing cast iron steps (C.I steps shall be paid under relevant item) |
| 36 | Supplying and fixing Cast IronMan hole or Cast Iron Steps cover of approved equivalent quality or product meeting technical specification and weight as specified in the drawings or as directed by the Engineer in charge. |
| 37 | Supplying man power along with necessary spades, shovels, punjas, ropes, small special spades, rain coats, broom, mop etc, minimum two labours per day and maximum any number of labour as and when decided by Engineer Incharge to work for eight hours per day to carry out the cleaning work, loading work etc as directed by Engineer Incharge. |
| 38 | Providing and Applying epoxy Putty including mixing in the proportions as specified by the manufacturer. The ingredients are mixed by stirring to get uniform paste. The prepared paste is applied over the prepared concrete surface to get even profile etc. complete (upto 2 mm). |
| 39 | Providing,laying , jointing, fixing and testing heavy quality(ISI Marked C-Class) Galvanised Iron pipes and ISI marked fittings like, tees, elbows, bends, unions, nipples,reducers etc. as required for the work, including testing the pipes and fittings for 10.00 Kg / Sq.Cmhydralic pressurewith a minimum period of two hours duration with clean water, including cutting , threading, jointing with hemp yarn, white lead, jointing teflon tape, chasing walls and making good by filling with concrete 1:3:6, complete all as per specifications and drawings, including two coats of anti corrosive bitumastic paint, all as directed by the Engineer-in-charge. Pipes withISI marked\"C\" -Class heavy quality pipes of approved equivalent quality or product meeting technical specification. |
| 40 | 25 mm dia G.I pipe. |
| 41 | 40 mm dia G.I pipe. |
| 42 | 50 mm dia G.I pipe. |
| 43 | Providing and Fixing SMC Panel water storage Tank of approved equivalent quality/product meeting techncial specification as per IS 14399 made out of Hot Pressed Moulded Sheet Moulding Compound (SMC) panels of size 1m x 1m and 1m x 0.5m as per site requirement at required elevation. All the flanges of the panels should have 10 nos of holes for fastening and joining the panels to one another. Manhole should be provided on the roof of the tank with proper locking arrangemet with cover of dia 600mm. Panel should withstand hydrostatic pressure of at least 4 times the working load and should be provided with hot dip galvanized nut, bolts / washer and special sealant having exellent UV resistance as well as suitable for potable water. The roof should be supported with pvc pipe of 110mm dia at every interval. The tank should have ladders inside and outside , provision of inlet, outlet, overflow / drain and fixing necessary Nozzles / Flanges provided with tanks that are of G.I and Qty. is 1 each or as directed by EIC for Inlet /Outlet/Overflow 50mm NB & 100mm NB for outlet required length as per site conditions with double check nuts, washer etc. complete job as per directions of engineer-in-charge. |
| 44 | ISI Mark Prefabricated SMC Panel Tank in the size of 2mt x 1m x 1m havingCapacity (2,000 Litre) including Installation of tank. |
| 45 | Carrying out Civil Engineering works like surveying & leveling, checking of formwork fabrication, reinforcement fabrication as per drawings, witnessing sample retrieval & testing for various construction materials, ensuring concrete ingredient ratio at batching plant and pouring of appropriate grade of concrete in plain and reinforced concrete works,ensuring proper mixing of approved ingredients & waterproofing admixtures for mortars and brickwork, plaster, flooring & waterproofing works, and other civil & PH works including supervision of construction safety as per BARC specifications & relevant documentation, compiling, binding and preparation of tender documents & Agreements overall as directed by Engineer-in-Charge.Note :(1)Each Job shall be carried out by one qualified Technician having minimum SSC or Trade certificatein Masonary/Plumber/Carpenter/Painter Trade of not less than one year duration from ITI/Government Recognised Vocational Training Institute.(2)Deployment: The contractor shall deploy one Technician for each job for minimum 8 ½ hours per day with 30 minutes of break, in General (Ist / IInd) or on Round the clock shift including Saturdays, Sundays & holidays whenever necessary as per the discretion of the Engineer-in-Charge during the contract period. In case of emergency works like continuous pouring of concrete or shutdown/maintainance work, the technician will have to stay longer occasionally as per the instruction of the Engineer in-charge. No additional payment will be made on this account.(3) Period of work: The contractor shall carry out number of Jobs per month as per requirement at site for the periodmentioned in NIT. (4) Mode of measurement : Measurement will be per job basis. A single job shall be carried out by deploying one Technician exclusively for the particular job.(5) The Technician should be engaged after scrutiny by EIC of CED, BARC and approved by Competent authority and the deployed Technician will report to BARC Engineer/ EIC. (6) The minimum notice period before change of technician is 1 (One) month; failing which a compensation, for not providing technical support, of Rs. 1249/- per day of shortfall in notice period will be levied on the contractor. |
| 46 | Retired departmental supervisor. |
| 47 | Any other Technician having minimum SSC or Trade certificatein Masonary/Plumber/Carpenter/Painter Trade of not less than one year duration from ITI/Government Recognised Vocational Training Institute. |
| 48 | Carrying out Civil Engineering works like surveying & leveling, checking of formwork fabrication, reinforcement fabrication as per drawings, witnessing sample retrieval & testing for various construction materials, ensuring concrete ingredient ratio at batching plant and pouring of appropriate grade of concrete in plain and reinforced concrete works,ensuring proper mixing of approved ingredients & waterproofing admixtures for mortars and brickwork, plaster, flooring & waterproofing works, and other civil & PH works including supervision of construction safety as per BARC specifications & relevant documentation, compiling, binding and preparation of tender documents & Agreements overall as directed by Engineer-in-Charge. Note : (1)Each Job shall be carried out by one qualified Degree holder with 2 (Two ) years experience/Diploma holder with 5(Five) yearsexperience (Licentiate in Civil/Construction Engineering / Technology) conducted by Board of Technical Examinations / University/ Autonomous Govt / Govt recognized Polytechnic/ Institute. (2)Deployment: The contractor shall deploy one Engineer for each job for minimum 26 working days per month for minimum 8 ½ hours per day with 30 minutes of break, in General (Ist / IInd) or on Round the clock shift including Saturdays, Sundays & holidays whenever necessary as per the discretion of the Engineer-in-Charge during the contract period. In case of emergency works like continuous pouring of concrete or shutdown/maintainance work, the person will have to stay longer occasionally as per the instruction of the Engineer in-charge. No additional payment will be made on this account.(3) Period of work: The contractor shall carry out number of Jobs per month as per requirement at site for the period mentioned in NIT.(4) Mode of measurement : Measurement will be per job basis. A single job shall be carried out by deploying one engineer exclusively for the particular job.(5) Engineer should be engaged after scrutiny by EIC of CED, BARC and approved by Competent authority and the deployed Engineer will report to BARC Engineer/ EIC.(6) The minimum notice period before change of engineer is 1 (one) month; failing which a compensation, for not providing technical support, of Rs. 1,579/- per day of shortfall in notice period will be levied on the contractor. |
| 49 | Providing and applying cold liquid Polyurethane waterproofing system |
| 50 | Providing and applying cold liquid Polyurethane waterproofing system on Horizontal surfaces including coving (if any) having following layers:(a) Primer / base coat: Providing and applying (Pre-Measured Packed) silver grey coloured 2 (two) component solvent free, odourless,Epoxy-based Primer with excellent adhesive property on the clean and grinded surface/substrate. The substrate can be slightly moist (in concrete, the moisture must be less than 20 %), sound and free from any material that would hinder good adhesion. Mix component \"A\" into component \"B\" in ratio of 1: 0.16 by weight thoroughly with a clean stirring stick. The mixture should be of uniform colour & free from streaks and be applied evenly with roller. The primer should be completely dry for further application of liquid applied polyurethane based membrane/ coating.The consumption, depending on the nature and condition of the substrate for priming, should be within the range of 250 – 400 gm/sq.m. The rate shall including cost of all material, labour, tools & plants, consumables etc. complete all as directed by EIC.(b) Top coat: Providing and applying cold liquid applied waterproofing based on highly flexible solvent free single component Polyurethane system and special needle punched non woven, system compatible polyester fleece of minimum 120 GSM as reinforcement. The cold liquid applied reinforced system shall have high crack bridging property and shall be UV stable, solvent-free, Cool Roof system. Application procedure: (i) Stir the material well before use. (ii) 2/3rd of the waterproofing mix material to be applied on the primed substrate and the special polyester fleece of min. 120 gsm to be rolled with roller including removal of air bubbles with an overlap of min. 5 cm. (iii) The remaining 1/3rd of the waterproofing material to be poured onto the surface until complete saturation is achieved. The layers should be applied on wet surface of earlier coat and there should not be any time lag during the laying of the system. (iv) After curing, one coat of material approx. 300g/sq.m. to be applied after 24 hours. (v) The total system of waterproofing for material and components shall be procured from single manufacturer.(vi) The total thickness achieved from the application should be from 1.4 to 1.7 mm. (vii) The total consumption of mix waterproofing depending on the nature, porosity and condition of the substrate should be in the range of 2.3 to 2.7 kg/sq.m. The rate shall including cost of all material, labour, tools & plants, consumables etc. complete all as directed by EIC. Specifications/Technical Parameters: The tensile strength of the membrane shall be min. 8.60 N/sq.mm and Elongation at break with fleece shall be min. 83.0 % (with fleece). The Tear Resistance of the membrane shall be min. 41.0 N/mm,Solar Reflection Index (SRI) Value of membrane shall be min. 100, Degree of solar reflectance of the membrane shall be min. 85% and adhesive strength shall be min. 2.40 N/sq.mm. etc.Note : The contractor shall provide min. 10 (ten) years Leak Proof Performance warranty for the complete waterproofing work. |
| 51 | Providing and applying cold liquid Polyurethane waterproofing system on Vertical surfaces above coving (if any) having following layers:(a) Primer / base coat: Providing and applying (Pre-Measured Packed) silver grey coloured 2 (two) component solvent free, odourless,Epoxy-based Primer with excellent adhesive property on the clean and grinded surface/substrate. The substrate can be slightly moist (in concrete, the moisture must be less than 20 %), sound and free from any material that would hinder good adhesion. Mix component \"A\" into component \"B\" in ratio of 1: 0.16 by weight thoroughly with a clean stirring stick. The mixture should be of uniform colour & free from streaks and be applied evenly with roller. The primer should be completely dry for further application of liquid applied polyurethane based membrane/ coating.The consumption, depending on the nature and condition of the substrate for priming, should be within the range of 250 – 400 gm/sq.m. The rate shall including cost of all material, labour, tools & plants, consumables etc. complete all as directed by EIC.(b) Top coat: Providing and applying cold liquid applied waterproofing based on highly flexible solvent free single component Polyurethane system. The cold liquid applied reinforced system shall have high crack bridging property and shall be UV stable, solvent-free, Cool Roof system. Application procedure: (i) Stir the material well before use. (ii) 50% of the waterproofing mix material to be applied on the primed substrate with roller including removal of air bubbles with an overlap of min. 5 cm and until complete saturation is achieved. (iii) After curing, balance 50% of material to be applied after 24 hours. (iv) The total system of waterproofing for material and components shall be procured from single manufacturer.(v) The total thickness achieved from the application should be from 0.47 to 0.57 mm. (vi) The total consumption of mix waterproofing depending on the nature, porosity and condition of the substrate should be in the range of 0.77 to 0.80 kg/sq.m. The rate shall including cost of all material, labour, tools & plants, consumables etc. complete all as directed by EIC. Specifications/Technical Parameters: The tensile strength of the membrane shall be min. 8.60 N/sq.mm and Elongation at break with fleece shall be min. 83.0 % (with fleece). The Tear Resistance of the membrane shall be min. 41.0 N/mm,Solar Reflection Index (SRI) Value of membrane shall be min. 100, Degree of solar reflectance of the membrane shall be min. 85% and adhesive strength shall be min. 2.40 N/sq.mm. etc.Note : The contractor shall provide min. 10 (ten) years Leak Proof Performance warranty for the complete waterproofing work. |
| 52 | Providing & Applying polymer modified,liquid applied, crack bridging, elastic, 2 pack acrylic polymer modified cementitious water-proofing coating system on concrete /plastered wall surfaces. The waterproofing chemical shall have Tensile strength of not less than 2 N/mm2 , Elongation not less than 35%. The substrate must be prepared by suitable mechanical preparation techniques such as high pressure water jetting, needle guns, blast cleaning etc. and properly pre-wetted to a saturated surface dry (SSD) condition. Blast clean to remove all contaminants within pores /blowholes.Mixing of Mortar shall be carried out as per Manufacturers specification using slow speed paddle mixer (500- 600 rpm).Subsequently,application of mortar and Curing shall be carried out as per Manufacturer\"s specifications all as per the directions of the Engineer -in Charge at all levels and locations complete.Note: Scaffolding will be measured and paid under relevant item. |
| 53 | Providing SFMC Micro concrete for strengthening of structural members including mixing, pouring, curing as per manufacturer specifications and as directed by the Engineer-in-charge. Using SFMC with 50% Quartz aggregate by weight (Only SFMC consumed alone will be measured for payment) |
| 54 | Providing SFMC Micro concrete for strengthening of structural membersincluding mixing, pouring, curing as per manufacturer specifications and as directed by the Engineer-in-chargeUsing 100% SFMC |
| 55 | Providing and repairing toexternal plastering in cement mortar1:4 (usingcrushed sand) of thickness 12 mm to 20 mm in patches of areaup to 2.5 sq metres including cutting the patch in proper shape, raking out joints and preparing and plastering the surface of the walls ncluding admixtured with approved Water proofing compound @ 2% by weight of cement used and as per manufacturer\"s specifications ,sieving of sand to required fineness complete including disposal of rubbish to the dumping ground within 50 metres lead |
| 56 | Strengthening and upgradation of concrete structures with min. 300 GSM unidirectional carbon fibre wrapping sheet of approved equivalent quality or product meeting technical specification with epoxy treatment including surface preparation i.e. Smoothening of surface, priming the substrate using approved Epoxy Primer applied by roller/brush, followed by application of approved epoxy saturant over the tack free primed surface. Carbon Fabric shall be completely impregnated in two coats of approved epoxy saturant, wrapped over the concrete structure at desired orientation using tamping rollers to avoid any air voids etc. and sprinkling quartz sand in the last layer of the saturant, making coving the corners of beam and slab junction rounded with the approved epoxy putty with a radius of min. 25 mm and Carbon Fibre anchors etc. as per detailed technical specifications and and as directed by the Engineer in charge. Note: 1. Refer Detailed Technical Specifications.2. The measurement of coving and carbon fibre anchors will be paid separately under relevant item(s). |
| 57 | Makingcoving the corners of beam and slab junction rounded with the epoxy putty with a radius of 25 mm minimum |
| 58 | Demarking the locations of Carbon Fibre anchors on the newly wrapped RCC surfaces with proper spacing, drilling 10-12 mm dia and 75 to 100 mm deep holes, saturating the fixed end of Carbon Fibre anchor with epoxy resin and inserting anchors in the holes, spreading and pasting the 8 Carbon Fibre petals of anchor over the FRP with saturant, finishing, levelling with roller, etc. complete. |
| 59 | Providing and fixing post-installed chemical anchors using reinforcement bar of various sizes( from 8mm to 40mm dia.) of high load carrying capacity using injection grout system including transporting the materials, drilling holes by rotary hammer drill/ core cutting, dust removing/cleaning the drill holes, batching, mixing of resin and hardener, inserting & anchoring rebars of specified diameter in existing concrete surfaces using resin based anchoring grout with minimum drilling depth of 10 times diameterof thereinforcement steel all complete as directed by EIC.Note: 1. Steel rebars shall be paid separately under relevant item. (a) For 10mm dia. |
| 60 | Providing and fixing post-installed chemical anchors using reinforcement bar of various sizes( from 8mm to 40mm dia.) of high load carrying capacity using injection grout system including transporting the materials, drilling holes by rotary hammer drill/ core cutting, dust removing/cleaning the drill holes, batching, mixing of resin and hardener, inserting & anchoring rebars of specified diameter in existing concrete surfaces using resin based anchoring grout with minimum drilling depth of 10 times diameterof thereinforcement steel all complete as directed by EIC.Note: 1. Steel rebars shall be paid separately under relevant item. (b)For 12mm dia. |
| 61 | Carbon Fiber Reinforced Polymer (CFRP) Strenghening: Surface Cleaning of existing concrete carefully by Grinder without damaging the existing concrete including cleaning the surfaces by Blower etc. complete. |
| 62 | Providing and Applying 100% solvent-free, mixed density 1.1 kg/ltr, Flexural Strength conforming to IS 4456 (Part 1) not less than 50 MPa, Low viscosity epoxy resin as a priming compound, Bond strength conforming to ASTM D 4541 used for enhancing adhesion between substrate and epoxy overlay and fill in the scratches, should have high moisture tolerance such that can be used even with 6% moisture in the substrate. It should also have wide range of curing temperatures. The proportions as specified by the manufacturer. Mixing with help of a low RPM (400-500RPM) stirrer. Apply the mixture usingclean brush on to the surface of the substrate. |
| 63 | Providing and Applying first coat of 100% Solvent free epoxy resin, mixed density of 1.8kg/lit. Flexural Strength conforming to IS 4456 (Part 1) greater than 30 MPa,Bond strength conforming to ASTM D 4541 used for saturation of CFRP Sheets, proportions as specified by the manufacturer. (Mode of measurement: Per sq.mt of CFRP sheet consumed and not surface area of application) |
| 64 | Carbon Fiber Reinforced Polymer(CFRP) Sheets: Providing and Application of CFRP Fabric having composite modulus of atleast 90GPa and min composite thickness of 0.9 mm. Weather resistance, pultruded CFRP Fiberwith stress-strain ratio within the limit of elasticity confirming to ACI codesand tensile strength of fabric used at least 4000 MPa.Cutting the fabric to required size.Wrapping: Wrapping the fiber sheet to structural element at desired orientation using tamping roller to avoid any air voids etc. (Mode of measurement: Per sq.mt of Carbon fiber sheet consumed and not surface area of application) |
| 65 | Providing and Applying second coat of 100% Solvent free epoxy resin, mixed density of 1.8kg/lit. Flexural Strength conforming to IS 4456 (Part 1) greater than 30 MPa, Bond strength conforming to ASTM D 4541 used for saturation of CFRP Sheets, proportions as specified by the manufacturer. (Mode of measurement: Per sq.mt of CFRP sheet consumed and not surface area of application) |
| 66 | Drilling 12mm dia hole for carbon anchor 50 to 60 mm depth |
| 67 | Provide & fixing Carbon Fibre Anchor using Epoxy 100% Solvent free epoxy resin, mixed density of 1.8kg/lit. Flexural Strength conforming to IS 4456 (Part 1) greater than 30 MPa, Bond strength conforming to ASTM D 4541 used for saturation of CFRP Sheets, proportions as specified by the manufacturer. Also, spreading the anchor fibres in star pattern including application of saturant etc. complete. |
| 68 | Providing & Applying high strength Carbon Fiber Reinforced Polymer Composite Pultruted Plates with a Tensile Strength of 2800MPa of 1.4mm thickness and 50 mm width.(Mode of measurement: Per running Mt. laminate applied ). |
| 69 | Providing & Applying high strength Carbon Fiber Reinforced Polymer Composite Pultruted Plates with a Tensile Strength of 2800MPa of 1.4mm thickness and 100 mm width.(Mode of measurement: Per running Mt. laminate applied ). |
| 70 | Providing & Applying high strength Carbon Fiber Reinforced Polymer Composite Pultruted Plates with a Tensile Strength of 2800MPa of 2.4mm thickness and 100 mm width.(Mode of measurement: Per running Mt. laminate applied ). |
| 71 | Providing and Fixing Non Prestressed Anchors System as per design (Size of Plate: 150mm x 170mm x 10mm) |
| 72 | Providing and FixingPrestressed Anchors System as per design (Size of Plate: 220mm x 270mm x 12mm) |
| 73 | Sprinkling of quartz sand: Providing and applying top coat layer of quartz sand sprinkling on CFRP Sheet wrapped surface ( 17.5kg/sqm + 30% wastage) on CFRP Sheet wrapped Surface. |
| 74 | ANTI – CORROSIVE TREATMENT: The anti-corrosive treatment involves following steps to protect the exposed reinforcement in existing RCC. First, apply a single component Rust Converter,to the exposed reinforcement to convert traces of rust into a passive layer. After 24 hours, use a wire brush to clean the reinforcement scales. Next, install embedded galvanic anodesat 500 mm intervals to prevent anode corrosion. The alkali-activated (Type 1A) anodes are made of high-purity zinc, cast around a steel tie wire with an improved cement-based mortar that has an internal pH of 14 or higher.After cleaning and preparing the concrete surface, apply a single coat of the single-component Migrating Multifunctional Corrosion Inhibitor, at a rate of 0.25 kg per square meter. It provides anodic and cathodic protection, at interface contact of steel/concrete, and by migration: by its nature, the vapor pressure of the molecules allow migration through porous concrete to reach the internal steel reinforcement, protecting and prolonging the life of the structure . Finally, coat the exposed steel reinforcement with a single-component, cementitious corrosion-inhibiting primer, preferably in two coats, as directed by the engineer in charge. |
| 75 | Providing & applying a single component cementitious corrosion inhibiting primer which is in powder form needing only water addition at site at a w/p ratio of 0.3 (30%). It shall have a mix density in the range of 2.0-2.5 and a pot life exceeding 25 minutes. It shall have a touch dry time of 10-15 minutes and minimum adhesion Bond strength of 1MPa when tested on Standard Elctometer as per ASTM D 4541-85. It shall provide a coverage of 10-12 RM per kg for a 12 mm bar when applied at 1 mm thickness. Material should be compatible for use up to 70 degree surface / ambient temperature. The Surface area shall be measured. |
| 76 | Grouting with ready to use, quick- setting, water proof repair grout (free of chlorides and water soluable salts) for stoppage of water seepage and leakages by adding potable water (3 parts by-volume of grout mix with 1 part-by-volume of potable water). Grouting will be done through pre-fixed nipples with High Pressure Hand Pump, and removing the nipples after grouting the area including cost of materials, labour, equipment, tools & tackles and consumables etc. all as per manufacturer\"s specification and as directed by Engineer-in-charge. |
| 77 | Drilling Holes of 12/13mm diameter and fixing Aluminium/ PVC nipples using ready Mix High Strength Mortar. |
| 78 | Grouting (only quantity of material used for grouting will be measured and paid.) Contrator shall maintain Log bookfor consumption of Grout / Cement duly approved byEngineer in Charge . |
| 79 | Providing and applying / injecting general purpose, high flow, Class A, non-shrink grout having high flowability through voids, bottom of base plate, tie rod hole and/or gap of min. 10 mm up to 100 mm, by mixing potable water, in a controlled manner by forced-action mixer, in the range of min. 2.9kg to max. 4.1kg per 20 kg bag of grout depending on the required consistency including cost of materials, labour, equipment, tools & tackles and consumables etc. all as per manufacturer\"s specification and as directed by Engineer-in-charge.Technical parameters: (i) Compressive strength (as per AS 1478.2) in the range of min. 60 MPa to 75 MPa at 28 days depending upon consistency of the grout mix. (ii) Flexural strength (as per AS 1012.11) min. 13 MPa at 28 days, (iii) Indirect tensile strength (as per AS 1012.10) min. 6 MPa at 28 days, (iv) setting time (as per AS 1012.18) - Initial Setting Time min. 5.5 hours and Final Setting Time max. 7.5 hours (v) Flow characteristics (as per AS 1478.2): 400-600mm (Flow Trough) and 25-30 seconds(Flow cone). Rate will beinclusive of mixing, pouring, curing as per manufacture\"s specification, includingscaffolding, complete all as per specifications and as directed by Engineer-in-charge. |
| 80 | Providing and fixing in position 1.2 mm thick hot dip galavanized steel deck span as sacrificial shuttering, of depths 50-55 mm , pitch 265-275 mm and m & k value as specified, tested and certified by SERC/ INSDAG and conforming to IS 277, having yield strength of 250 mpa with 120gsm, with all lappings, welding if necessary, providing holes etc., with all materials, labours, handling,taxes, transport etc. complete. |
| 81 | Providing and fixing Stopper /Edge flashings of material and thickness as decking sheets. |
| 82 | Providing and fixing 19mm dia , 90/100mm long studs with ceramic Ferrule |
| 83 | Providing and Laying Autoclaved Aerated cement block masonry of approved equivalent quality or product meeting technical specificationwith specified thickAAC Blocks in Super structure above plinth level up to 20 m heightin cement mortar 1:4 (using crushed sand). The rate shall also include providing and placing in position 2 nos of 8 mm dia bars at every third course of the masonry work |
| 84 | Core cutting in RCC up to and including 50 mm Dia |
| 85 | Core cutting in RCC beyond 50 mmup to and including 100 mm Dia |
| 86 | Core cutting in RCC beyond 100 mmup to and including 150 mm Dia |
| 87 | Core cutting in RCC beyond 150 mmup to and including 200 mm Dia |
| 88 | Core cutting in RCC beyond 200 mmup to and including 250 mm Dia |
| 89 | Removing carefully the existing damaged Flush door shutters/ windows with frame ( if required) from its existing location without damaging any Vision glass, lock, doorcloser etc. Resizing the same for smooth operation to make floor touch free including strengthening the shutter by refixing the beeding with necessary nails etc,reshaping & refixing ofthe door as required, re-erecting and re-positioningthe frame/ shutter at the same place, re- fixing all fitting such as MS hold fast,pull/ push handle, hinges, locking arrangement, towerbolt etc. complete with painting the rectified area to match with existing door paint all as required including making arrangements for fixing hold fast in the existing wall with concrete etc. as directed by the Engineer-in-charge.Note 1. The contractor shall provide the sundry materials such as screws, nails etc. No extra payment will be made for it.2.If any aluminum sections are required, the same will be measured and paid under relevent item.3. All required fittings like heavy duty door closer (one no), mortise clock ( one no) if required will be supplied and fixing by the contractor and will be paid under relevent items. |
| 90 | Dismantling Works:Dismantlingplain cement concretemanually / by mechanical meanscarefully without damaging adjacent structures including disposal of debris within 200 m lead as per direction of Engineer-in-charge |
| 91 | Dismantling Aluminium / Gypsum partitions, doors, windows, fixed glazing and false ceiling including disposal of unserviceable surplus material and stacking of serviceable materials within 100 m lead as directed by the Engineer-in-charge |
| 92 | Dismantling of RCC works includingCuttingand stacking of steel reinforcement bars and disposal of unserviceable materials within 100 m lead as per direction of Engineer-in-charge |
| 93 | Dismantling old plaster / skirting carefully ,raking out joints and cleaning the surface for plaster includingdisposal of rubbish to the dumping ground within 100 m lead |
| 94 | Dismantling brick work in Cement mortar carefully without damaging adjacent structures including stacking of materials and dispoal of unserviceable materials within 100 m lead as per direction of Engineer-in-charge |
| 95 | Dismantling doors, windows and clear storey openings (steel / wood) shutter including chowkhats, architraves, holdfasts etc. complete and stacking within 100 m lead (full windows) Of area 3.00 Sq.M and below |
| 96 | Dismantling doors, windows and clear storey windows (steel / wood) shutter including chowkhats, architraves, holdfasts etc. complete and stacking within 100 m lead (full windows) Of area beyond 3.00 Sq.M |
| 97 | Dismantling tile work in floors and roofs laid in cement mortar including stacking material within 100 m lead. For thickness of tiles above 25 mm and up to 40 mm |
| 98 | Dismatling of carefully existing ground floor and first floor parapet wall panels (2.5 m*1.2m) long (approximately)and casting the same including shuttering and laying in position Reinforced Cementconcrete (RCC) of grade M-25 using 20 mm maximum size aggregates and river sand of approved quality including Admixtures of approved Brand and quality (Plasticiser or super plasticiser) if required, including weigh batching,Mechanical mixing, transporting , placing, vibrating, consolidation, finishing, curing etc. complete but excluding the cost of centering, shuttering ,and reinforcement complete as per specifications(Cement Concrete M-25 Gradenominal size 20 mm metal ). |
| 99 | Pre-mixed Polymer Modified Mortar (PMM) repair:Structural repairs works with pre-packed dual shrinkage controlled (volume stable in wet & hardened state), single-component ready-to-use, structural grade high build, alkali-resistant, fibre-reinforced, thixotropic polymer modified repair mortar having excellent bond strength to old damaged concrete structures / surfaces by the following process:1) Removal of loose/spalled or damaged concrete by chipping and cleaning the concrete surface to open up to 20mm behind the reinforcement steel with wire brush and with clean water including removal of dirt, paint, wax, oil, grease, laitance, foreign substances, etc.Mechanically profile and repare concrete surfaces by abrasive blasting, waterjetting or other engineer approved methods 2) Cleaning the rebars with Acetone for complete rust removal and washing with water to make the surface clean. Ensure that the concrete substrate and ambient temperatures are between (10°C and 35°C) before application 3) Applying protective coat / bond coat using Styrene Butadiene Rubber (SBR) polymer and cement in the proportion of 1: 1 (1 part of polymer : 1 parts of cement). 4) Mixing full 25 Kg bag with clean potable water in water to product ratio of 0.12 to 0.18), mixed by heavyduty slow speed (300 to 600 rpm) drill with spiral mixing paddle or forced action pan mixer pan for 3 minutes to achieve uniform lump free mortar consistency. 5) Applying polymer modified mortar with trowel & float. The polymer modified mortar shall have the following properties/technical parameters:A) Properties / technical parameters of pre-packed Polymer Modified Mortar:i)Compressive strength 1 day: Min. 20 MPa (as per BS:6319 : Part 2) ii)Compressive strength 7 days: Min. 35 MPa (as per BS:6319 : Part 2) iii) Compressive strength 28 days: Min. 45 MPa (as per BS:6319 : Part 2)iv) Flexural strength in 28 days: Min. 7 Mpa (as per BS:6319 : Part 3) v) Tensile strength in 28 days: Min. 2.5 MPa (as per BS:6319 : Part 7) vi) Bond strength: Min. 5 MPa (as per ASTM : C881)vii) Water permeability: less than 1% (as per ASTM : C881)viii) Drying shrinkage in 28 days: less than 1000 microstrain (as per ASTM C 157-93)ix)Potential Alkali Reactivity - : <0.1% Expansion % ( ASTM C1260)B) Properties / technical parameters of SBR polymer bond coat material: i) Meets the requirements of BS 6319 part 2:1983 & ASTM C 190-85 standardsii) Total solids % by mass at 105oC: 38 + 1iii) pH value: 7.5 to 9.5iv) Specific gravity at 27.5oC: 1 to 1.05v) Coverage: 4.2 - 4.5 sq.m/kg per coatNotes:- (a)Placing and finishing the same with trowel / hand packing carefully compacting the same around the rebars and finishing to bring it in line with existing concrete surface on the beams, slabs, columns, etc. (b) If thickness of repair exceeds 20mm , after every 20 mm thick repair, bond coat as per process no. (3) mentioned above in the BOQ item, to be applied and further thickness of repair to be continued for each layer. (c) The surface preparation & method of application shall be as per manufacturer\"s technical data sheet. (d) The double tubular steel scaffolding will be paid separately in relevant item. (e) Sampling and testing of cube specimen for compressive strength test shall be as per BS 6319 - Part-2.Other tests mentioned above shall be carried out if required as per the direction of the EIC and the cost of which shall be deemed to be included in the quoted rate (f) For each batch of mortar mixed, following records, i.e Quantity of mortar (kg) mixed, Amount of water added to the mix, Location of application and the area covered.(g) Payment will be paid on the basis of actual consumption of PMM & Reinforcement will be paid in the relevant item. (h) Curing like mist spraying the surface with water or using damp burlap or hessain cloth shall be done.Replacement of old rebars in case of reduction in diametre shall be done in consultation with EIC before applying repair mortar. (i) Safety Precuations:- Use wear tight-fitting, dust-resistant, chemical splash goggles and dust respirator, if airborne dust is generated, wear protective rubber hand gloves, wear appropriate clothing to prevent any possibility of skin contact. The above item of work is inclusive of all materials, labour, machinery, tools & tackels, consumables, trasportation, loading & unloading, safety PPEs etc. all complete as directed by Engineer-in-charge at site using approved pre-packed polymer modified mortar suitable for structural repair works. |
| 100 | Providing and carrying out injection grouting treatment for active leakage control and dampness reduction in RCC structures such as retaining walls, basements, floor-wall joints, or other areas subject to water ingress, including inspection with structural/site engineer, fixing of injection nozzles at appropriate spacing and depth as per site condition, and injection of suitable polyurethane-based grouting materials (foam and non-foam types) based on the severity and type of leakage. Work to be executed using specialized equipment, grouting pumps, and sealing compounds as per standard practice and site requirements, as per manufacturer\"s specification etc. as directed by Engineer-In-Charge |
| 101 | Fixing of Nozzles:Fixing of non-return valve injection packers/ nozzles at dripping leakage locations and damp patch locations @ 300 mm c/c or 150 mm c/c in case of heavy dripping using suitable drill up to the depth of 100mm or generally half of the thickness of substrate and sealing the nozzles with polyester resin anchor grout or using rapid setting quick setting cementitious polymer modified compound. Note: Drilling depth and nozzles selection to be decided based on actual site condition. |
| 102 | Injection Grouting at leakage locations:Providing and grouting with single component Polyurethane Foam injection grout mixed at ratio of 10:1 (10 parts of Resin: 1 part accelerator) which will foam after reaction with water/ moisture, cream time <20 seconds, rise time <30 seconds, foam expansion more than 30 times. Itemincludes rates for sealing cracks and nozzleremoval. |
| 103 | Providing and grouting with two component Polyurethane based non- foam injection grout mixed at ratio of 2:1 (2 parts of Base: 1 part Hardener) which will injected through same nozzle which gives Adhesion strength >2.5 MPa, Adhesion in wet concrete >1.5MPa, Elongation >80%. Itemincludes rates for sealing cracks and nozzleremoval. |
| 104 | Extra for mechanized surface preparation & painting :Mechanized surface preparation prior to painting by thoroughly cleaning the surface to remove all contaminants affecting the adhesion of the paint and making the surface even & free from undulations, by using mechanical sander, equipped with a dust collector bag (of adequate capacity) to capture the dust particles during the operation. The vacuum force generated by the sander shall remove the dust, typically through a hose connected to a collection bag or vacuum. For smaller or more intricate areas, use needle guns or mechanical wire brushes to eliminate loose particles, rust, or dust. Once the surface is properly prepared, apply the primer and paint coats, in the same number of coats as mentioned in the original item(s), using an airless spray or roller as per site requirement. Using airless spray gun of good quality at a 45-degree angle, maintaining a distance of 12-18 inches from the surface, and apply the paint in overlapping strokes to ensure even coverage and avoid uneven spots & irregularities.Note: This item will be measured over and above the relevant item of painting for mechanized application only. |
| 105 | Dismantling steel work in single sections including dismantling and stacking within 100 m leadIn R.S Joists,Angles etc. |
| 106 | Dismantling roofing including ridges, valleys and gutter etc and stacking the material within 50 m lead |
| 107 | G.S Sheet / FRP Sheet / AC Sheet |
| 108 | Dismantling brick bat coba cement based waterproofing overroof and chajjas carefully without damaging adjacent structures including lowering and stacking of materials and dispoal of unserviceable materialswithin 200m lead as per direction of Engineer-in-charge |
| 109 | Providing and laying integral cement based water proofing treatment including preparation of surface as required for treatment of roofs, balconies, terraces, chajjasetc. consisting of flowing operations: Injecting the top slab as required with cement and approved water proof compound solution to fill up all inherent holes, voids honey combs etc.in the concrete slab, setting\"autoclaved aerated light weight block bats\" coba in waterproof mortar with necessary gradient for easy flow of water & continue the treatment along the inner faces of parapet or other adjoining wall upto a height of 300 mm in the shape of vatas, finishing the surface with 20 mm thick jointless cement mortar of mix 1:4 (usingriver / crushed sand) admixed with proprietary water proofing compound conforming to IS 2645 and approved by Engineer-in-charge including mixing \"polyster fibre of approved make/quality\" at the rate of 125 grams per 50 kg of cement in top layer of plaster and finally finishing the surface with trowel with neat cement slurry and making pattern of 300 X 300 mm square, 3 mm deep. The whole terrace so finished shall be flooded with water for a minimum period of 2 weeks for curing and for final test. All above operations to be done in order and as directed and as specified by the Engineer-in-charge |
| 110 | 120mm Average thickness for terraces using river sand/crushed sand |
| 111 | Extra over 120 mm thickfor providing cement based waterproofing treatment to new terraces / chajjas including cleaning the concrete surfaces, giving injections to the top slab as required with cement & approved waterproofing compound solution to fill up all inherent holes, voids honey-combs etc. in the concrete slab, setting\"autoclaved aerated light weight block bats\" coba in waterproof mortar 1:4(using crushed sand) with necessary gradient for easy flow of water, complete as per specifications and as directed by the Engineer-in-charge.(Measurement will be over and above the average thickness of 120 mm only) |
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