Name of Work: Roof treatment ot Bn Mandir of 14 Assam Rifles.
Sl. No.
Item Description
1
Hacking of CC flooring including cleaning for surface etc. complete as per direction of the Engineer-in-Charge.
2
12 mm cement plaster of mix : 1:4 (1 cement: 4 fine sand) with neat cement slurry
3
Extra for providing and mixing water proofing material in cement concrete work in doses by weight of cement as per manufacturer\"s specification.
4
Providing and laying APP (Atactic Polypropylene Polymer) modified prefabricated five layer, 3 mm thick water proofing membrane, black finished reinforced with glass fibre matt consisting of a coat of bitumen primer for bitumen membrane @ 0.40 litre/sqm by the same membrane manufactured of density at 25°C, 0.87 - 0.89 kg/litre and viscocity 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/5 cm. 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 manufacturer of membrane : 3 mm thick including removal of old APP Sheet and cleaning the surface by wire bruss
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