Prevention of Roof leakage of residential quarters public buildings in Steel Township under the work of Various Civil Electrical Water Supply

SL No DSR/MR

Unit Qty RATE AMOUNT

DSR NON-DSR

Providing and laying APP (Atactic Polypropylene Polymer) modified

prefabricated five layer 3 mm thick water proofing membrane, black

finished reinforced with non-woven polyester matt consisting of a

coat of bitumen primer for bitumen membrane @ 0.40 litre/sqm by

the same membrane manufacture 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 650/ 450N/ 5cm. Tear

strength in longitudinal and transverse direction as 300/ 250N.

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 :

14.91.1 3 mm thick Sqm 154090.00 593.69 91481306.88