Delhi University has published Tender For Roof Waterproofing And Upgradation Work. Submission Date for this Tender is 12-09-2023. Water Proofing Work Tenders in Delhi Delhi. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | Waterproofing and Paint Work |
| 2 | Removal of surface loose material, cleaning the surface with wire brush, all complete, including removal of malba to the nearest Muncipal dump |
| 3 | Providing and laying APP (Atactic Polypropylene Polymer) modified prefabricated five layer, 3mm thick water proofing membrane, black finished reinforced with glass fibre matt consisting of a coat of bitumen primer for bitumen membrane @ 0.40 ltr/sqm. by the same membrane manufactured of density at 25°C, 0.87 - 0.89 kg/ltr and viscosity 70 -160 cps. Over the primer coat the layer of membrane shall be laid using butane torch and sealing all joints etc., and preparing the surface complete. The vital physical and chemical parameters of the membrane shall be as under : Joint strength in longitudinal and transverse direction at 23°C as 350/300 N/5cm. Tear strength in longitudinal and transverse direction as 60/80N. Softening point of membrane not less than 150°C.Cold flexibility shall be upto -2°C when tested in accordance with ASTM,D - 5147. The laying of membrane shall be got done through the authorised applicator of the manufacture of membrane. (3 mm thick) For protection from sunlight coating of aluminium paint to protect the waterproofingfrom sunlight. |
| 4 | Expansion joint treatment... 1 ) opening and cleaning the joint properly. 2) repairing the sides with waterproofing compound modified cement sand putty. 3) fixing rubber strip ( aprox 1 ft wide) inside the joint in u form and fixing on both sides using aluminium strip and screws. Sealing bothsides using sealant or liquid membrane. Fixing the loose stone pieces onthe joint and filling the joints between stone pices with sealant.. |
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