Central Reserve Police Force Tender

4.12 Extra for providing and mixing water proofing material in cement concrete work in doses by weight of cement as per manufacturer's specification. Note - Grading roof for water proofing treatment with Cement mortar 1:4 (1cement : 4 coarse sand), 01 cum contain 3.80 quintal total 60.77 cum x 3.80 = 230.92 quintal i.e 230.92 x100 = 23092 kg / 50 = 461.84 bag i.e 462 bag (01 bag cement 50 kg)

22.14.3 Grading roof for water proofing treatment with:- Cement mortar 1:4 (1cement : 4 coarse sand)

22.19.1 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