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| 1 | M&L making V groove of 10mm wide and 30mm deep or upto the extend of joint/crack present at site over joint/ crack line using electricity operated angle grinder with diamond concrete saw blade and cleaning it by air blower complete all as manufacturers instruction and as directed. Note:-The groove shall be cut on the concrete surface along the joint/crack over RCC structure to be repaired. |
| 2 | M&L for Drilling Holes of 12mm dia up to 100 mm deep holes in structural members at the interval of 300 mm in staggered manner or along the joint & crack line in Reinforced Concrete (RC) structural element including cleaning of the holes by air blower and inserting 12mm dia nozzle compatible with injector and having machined external end to receive outlet of Grouting Gun. Fix inside the hole by applying thixotropic epoxy adhesive to ensure complete sealing and allow curing the system for minimum of 8 Hrs before Grouting including nozzle projections, excess putty, if any, over concrete element by grinding, leveling and finishing the external surface, after completion of the work, etc. complete all as manufacturers instruction and as directed. |
| 3 | M&L Sealing of exposed 'V' groove of 10mm wide and 30mm deep with solvent-free, moisture tolerant, thixotropic, two part structural adhesive and repair mortar cum surface leveling mortar complete all as manufacturers instruction and as directed. |
| 4 | M&L for injection grouting of construction joints with non shrink cement slurry admixed with epoxy grouting @ 300 mm C/C including of opening of cracks to a groove of size 12mm X 12 mm, Nozzle at 300 mm C/C including of opening of cracks to be grooved of size 10mm X 10mm fixing of nozzles with fast setting plugging compound Renderoc plug, cutting the extra length of nozzle after grouting including necessary scaffolding as required all in complete as per manufacturers instructions and as directed.Note:-(i) Seal the nozzle with thixotropic epoxy putty after the refusal of grout material from the nozzle. (ii) Leakage through other nozzle or cracks are required to be monitored while grouting and such points to be sealed as and when required without any extra cost. |
| 5 | Providing & Applying Two coats of AquaArm Top Guard inside of the wall & floor of the tank, a two components ready to use polymer modified cementatious coating . First Coat should be applied horizontzlly and second coat should be applied vertically, thickness of coating shall not be less than I .5mm complete as per manufacturers instructions and as directed. |
| 6 | Applying two coats AquArm Tank Coat, a water based epoxy coating certified for portable water on all over the concrete surface from inside.Apply the first coat by brush allow it to dry for 6-8 hrs and then apply 2nd coat and allow it to cure complete 24 hrs The coating shall be applied using brush application,Thickness after two coating should not be less than 500 microns complete as per manufacturers instructions and as directed. |
| 7 | REBUILDING & STRENGTHENING OF STRUCTURE M&L Examining concrete by tapping with light hammer and marking of the loose concrete areas of structural elements in straight line geometrical forms, grooving the edges same with grinder upto 5 -10 mm depth without damaging existing rebars, carefully removing unsound weak/ loose concrete/ cover & concrete around the rebars upto 10 mm depth by low impact high frequency hammer/ chipper without damaging the sound concrete, daily cleaning and stacking of debris at prescribed location in polypropylene/ paper bags, disposing off the debris outside the premises, complete as per manufacturers instructions and as directed. |
| 8 | M&L for cleaning existing reinforcement with wire brush/rotary wire brush to make surface free from rust scales, loose material, dirt etc complete and applying two coats of alkaline rust converting primer or Rust Remover with brush on the existing rebar for complete wetting of rusted metal surface and allowed to react it for 16-24 hours. After 24 hours, a white layer will appear which will protect further corrosion of metal / steel for about 5-7 days including surface preparation. Before applying protective coating, the surface should be wire brushed and thoroughly cleaned for dust with dry cloth, complete as per manufacturers instructions and as directed. |
| 9 | M&L for Drilling & Re baring of 10 mm dia x 120mm deep, thoroughly coated with Zinc based reinforcement epoxy AquaArm Coat-Zp complete as per manufacturers instructions and as directed. |
| 10 | M&L Providing and Application Aqua Arm Coat-Zp as passivator/Anti corrosion coating to the steel reinforcement shall be applied The material shall be two component, cement based polymer modified two component coating for corrosion protection. The material shall be prepacked and ready to use. It shall be fully compatible with the reinstatement methods adopted complete all as specified and as directed by Engrin-charge. This shall include surface preparation and errection of steel porps as required for the application. complete as per manufacturers instructions and as directed. |
| 11 | M&L of two component solvent free epoxy bonding agent for bonding old to new concrete. The ready to use epoxy bonding agent shall be applied over old concrete using brush after cleaning of surface of all dust or latiance. The material is supplied as a two part material in preweighed quantities for ready onsite mixing and use. The material shall exhibits the following properties Compressive strength 50 N/mm2 at 7D Flexural strenght 35N/mms at 7D, Shear strength ION/mm2 at 7D and Tensile strength 20 N/mm2 and Bond Strength of ION/mm2.The new concrete shall be placed within the open time as specified by the manufacturer to ensure maximum bonding and application shall be as per the manufacturer instruction and as directed |
| 12 | M&L Rebuilding the section of damaged RCC elements to its original size in thickness of 25mm by hand or spray application by Providing and applying single component, fibre reinforced, sulphate resistant, low shrinkage, high performance cementitious structural repair mortar. Surface finish of the repaired surface by mortar prepared with Water proofing admixture complete as per manufacturers instructions and as directed. |
| 13 | Strengthening work for beam bottom side carbon laminates 2 lines M&L for strengthening Structural elements using Carbon fiber reinforcement polymer(CFRP) tensile strength mean value3100 Mpa, Tensile Modulus of 170 Gpa as per EN2561. Apply one layer of SikaDur ADH 2200approximately 2-3mm thick on the substrate & laminate surfaces. Apply CarbodurP3500 to the suubstrate and using roller, extert a constant pressure by moving tool both ways in the longitudinal direction of the laminate complete as per manufacturers instructions and as directed. |
| 14 | M&L Supply and apply a stitched one directioal , high strength CFRP fabric in single layer over tie beams and columns as per specification after surface preparation by rounding off sharp edges to 25mm radius and cleaning it properly including thixotropic epoxy based impregnating resin/adhesive Sikadur-330(IN) for low density fabric for base and top coat. Wraping the CFRP fabric to columns or beams at desired orientation using tamping rollers to avoid any air voids etc and sprinking sand over it as complete as per manufacturers instructions and as directed. |
| 15 | M&L apply 12 mm plaster cover on the carbon fibre wraped structure in the ratio of 1:4 and admixed with WP-10 complete as per manufacturers instructions and as directed. |
| 16 | Anti-Carbonation Protective Coating for Exterior Providing, and applying single component, high build, elastomeric, crack-bridging, resistant to CO2 & SO2 and Chloride ion diffusion, UV resistant, breathable acrylic coating, with elongation at break exceeding 200% applied in two coats (each coat 100 micron DFT) on acrylic based primer at an average total thickness of 200 microns DFT in two coats including acrylic resin based primer as per the recommendation of the manufacturers. Item rate inclusive of all materials, labours, supervision, tools, tackles, transportation, scaffolding/ temporary supports/working platform etc., complete as per manufacturers instructions and as directed. Please Enable Macros to View BoQ information |
| 17 | Anti-Carbonation Protective Coating for Exterior Providing, and applying single component, high build, elastomeric, crack-bridging, resistant to CO2 & SO2 and Chloride ion diffusion, UV resistant, breathable acrylic coating, with elongation at break exceeding 200% applied in two coats (each coat 100 micron DFT) on acrylic based primer at an average total thickness of 200 microns DFT in two coats including acrylic resin based primer as per the recommendation of the manufacturers. Item rate inclusive of all materials, labours, supervision, tools, tackles, transportation, scaffolding/ temporary supports/working platform etc., complete as per manufacturers instructions and as directed. Please Enable Macros to View BoQ information |
