Details: hacking of cc flooring including cleaning for surface etc. complete as per direction of the engineer-in-charge. grading roof for water proofing treatment with cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20mm nominal size). extra for providing and mixing water proofing material in cement concrete work in doses by weight of cement as per manufacturer's specification. 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 t orch 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 long
Sector: Mining