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| 1 | Waterproofing Treatment of Open Terrace (With Removal of Tiles) |
| 2 | OD311297/2025-2026 Removal of all existing tiles,tile adhesives and other loose particles till mother slab by mechanical /manual chipping till mother slab.Manual grinding to be done over the opened surface areas to remove all existing loose particles as a part of surface preparation. |
| 3 | OD311304/2025-2026 Removal,transportation and disposal of all loose constuction materials debris like tiles,cement,sand and other loose particles from the site to the diposal location. |
| 4 | OD311315/2025-2026 Identification of all visible cracks and cutting/opening the same in ‘V’ groove shape. All loose and friable particles shall be completely removed from the opened cracks using compressed air/air blower. Filling of the prepared cracks with two-component elastomeric polyurethane sealant. C, mixed thoroughly using a slow-speed drill with paddle for a period of 3 to 4 minutes before pouring into the cracks. The filled cracks shall be allowed to cure properly( 24 to 48 hours), complete as per specifications and directions of Engineer-in-Charge. |
| 5 | OD311316/2025-2026 All corner joints between the roof slab and parapet wall shall be thoroughly cleaned. Any undulations noticed shall be levelled by manual grinding. Two-component cementitious waterproofing coating shall be applied over all treated corner areas, to act as an adhesive layer. Joint sealing tape of three-ply construction, 75 mm width, shall be fixed and pressed onto the freshly applied adhesive layer, ensuring a minimum overlap of 50 mm. A smoothing trowel shall be used to remove wrinkles and level any unevenness or distortions. Two to three coats of the two-component cementitious coating shall then be applied, ensuring that the joint sealing tape is fully embedded and completely covered, complete as per specifications and directions of Engineer-in-Charge. |
| 6 | OD311524/2025-2026 Providing and Application of a single coat of acrylic-based, highly penetrating and water-repellent primer for concrete surfaces. The primer shall be diluted with clean water in the appropriate proportion and stirred thoroughly to obtain a uniform consistency. One coat of the diluted primer shall be applied over the cleaned substrate and allowed to dry before commencing the subsequent waterproofing system, complete as per specifications and directions of Engineer-in-Charge. |
| 7 | OD311550/2025-2026 Providing and applying two coats of highly flexible two-component cementitious waterproofing coating having standard elongation as per the manufactures technical specification in approved make list over prepared and treated surface, complete as per specification. The coating shall be applied in two coats to achieve a total thickness of 1.0 mm. The second coat shall be applied after the first coat has reached touch-dry condition, including all materials, labour, tools, scaffolding and incidentals, complete as directed by the Engineer-in-Charge. |
| 8 | OD311580/2025-2026 Providing and Applying of Sand blasting shall be carried out immediately using clean, dry coarse sand over the second coat of the applied cementitious waterproofing coating while it is in tacky condition, to ensure proper adhesion with the screed concrete. Dosage of integral waterproofing compound shall be complete as per directions of the Engineer-in-Charge. |
| 9 | OD311589/2025-2026 Providing and laying protection screed of 50 mm thickness using cement and sand mixed with approved integral waterproofing admixture compound, laid over the freshly applied waterproofing coating, including all materials, labour and incidentals, complete as per specifications and directions of Engineer-in-Charge. |
| 10 | OD311591/2025-2026 Providing and Application of a single-component elastomeric, UV-resistant, high-performance acrylic-based waterproofing coating. After drying of the applied acrylic-based penetrating primer, the first coat of the waterproofing coating shall be applied.. A second coat of the waterproofing coating shall then be applied over the reinforced surface, ensuring complete coverage of the fibre mesh pores, complete as per specifications and directions of Engineer-in-Charge. |
| 11 | OD311592/2025-2026 Providing and Application of a single coat of single-component elastomeric, high-performance, aliphatic polyurethane–based waterproofing coating over the prepared and treated surface. Final curing period of approximate 48 hours shall be allowed under normal working temperature conditions before the surface is put to use, complete as per specifications and directions of Engineer-in-Charge. |
| 12 | Waterproofing Treatment of Open Terrace (Without Removal of Tiles) /Toilet areas (Gents and Ladies) |
| 13 | OD311698/2025-2026 Through cleaning to be done to remove all algae,fungi,vegetations and all other loose particles from the surface of the existing tiles by using high prressure water jet machine complete as per specifications and directions of Engineer-in-Charge. |
| 14 | OD311699/2025-2026 All tile joint gaps shall be cut to a depth of 3 mm, and all existing joint-filling material shall be completely removed. The opened joint areas shall be thoroughly cleaned. The joints shall then be filled with a three-component epoxy-based joint filler of approved quality, complete as per specifications and directions of the Engineer-in-Charge. |
| 15 | OD312483/2025-2026 Providing and Application of a single coat of acrylic-based, highly penetrating and water-repellent primer for concrete surfaces. The primer shall be diluted with clean water in the proportion of 1:3 and stirred thoroughly to obtain a uniform consistency. One coat of the diluted primer shall be applied over the cleaned substrate and allowed to dry before commencing the subsequent waterproofing system, complete as per specifications and directions of Engineer-in-Charge. |
| 16 | OD311708/2025-2026 Providing and Application of two coats of single-component elastomeric, high-performance, aliphatic polyurethane-based waterproofing coating over the prepared and treated surface. A final curing period of approximate 48 hours shall be allowed under normal working temperatures before the surface is put to use, complete as per specifications and directions of the Engineer-in-Charge |
| 17 | OD312336/2025-2026 Mechanical drilling shall be carried out at required locations using 6 mm diameter drill bits, followed by fixing of hose pipes in the pre-drilled holes. Cementitious pressure grouting shall be executed in all corner areas and on bathroom walls up to a height of 1.0 m using approved plasticised expanding grout admixture mixed with cement and water, to fill all gaps and voids beneath existing tiles. All drilled holes shall be sealed with approved three-component epoxy tile joint filler. Outlet traps shall be removed, the surrounding areas shall be waterproofed using approved polymer-based waterproofing coating, and the traps shall be refixed after completion. Existing tile joints shall be widened by cutting up to a depth of 3 mm and filled with approved three-component epoxy tile joint filler.complete as per specifications and directions of the Engineer-in-Charge |
| 18 | Waterproofing Treatment with painting of Internal/External Wall Areas. |
| 19 | OD312361/2025-2026 Cleaning of all wall surfaces shall be thoroughly cleaned using a high-pressure water jet machine to remove existing algae, fungi, and other loose particles as part of surface preparation. Any severely damaged plaster or plaster producing hollow (halo) sounds shall be removed by manual chipping and grinding. The affected areas shall then be replastered to match the surrounding surface, complete as per specifications and directions of the Engineer-in-Charge. |
| 20 | OD312366/2025-2026 Identification of all visible cracks and cutting/opening the same in a ‘V’ groove shape. All loose and friable particles shall be completely removed from the opened cracks using an air blower. The cracks shall then be filled with a single-component, flexible, fiber-reinforced acrylic crack sealer of approved quality, complete as per specifications and directions of the Engineer-in-Charge. |
| 21 | OD312528/2025-2026 Providing and Application of a single coat of acrylic-based, highly penetrating, and water-repellent primer for concrete surfaces. The primer shall be diluted with clean water in appropriate proportion and stirred thoroughly to achieve a uniform consistency. One coat of the diluted primer shall be applied over the cleaned substrate and allowed to dry before commencing the subsequent waterproofing system, complete as per specifications and directions of the Engineer-in-Charge.. |
| 22 | OD312630/2025-2026 Providing and Application of two coats of single-component hydrophobic cementitious waterproofing render over the prepared and treated surface. Sand blasting may be carried out immediately while the applied render is in a tacky condition to improve adhesion for subsequent coatings. This sand blasting is optional and may be carried out at the discretion of the Engineer-in-Charge. All works shall include materials, labour, tools, and incidentals, complete as per specifications and directions of the Engineer-in-Charge. |
| 23 | OD312632/2025-2026Providing and Application of a single coat of water-thinnable acrylic primer over the prepared and treated surface. The coat shall be applied generously and worked into all hairline cracks and voids using a suitable brush. The applied primer shall be allowed to dry before proceeding with subsequent coatings, complete as per specifications and directions of the Engineer-in-Charge. |
| 24 | OD312633/2025-2026 Providing and Application of two coats of single-component, water-based aliphatic acrylate elastomeric protective coating over primed walls as the final coating. All prepared surfaces shall be treated with two coats of the protective coating system at a coverage two coats. The coating shall be light-colored and may be tinted to any approved light shade as per client’s requirement, complete as per specifications and directions of the Engineer-in-Charge. Please Enable Macros to View BoQ information |
