FLOOR & RETAINING WALL:

Cleaning and preparing the surface area for carrying out membrane waterproofing treatment , then injection grouting the week areas on the concrete surface with cement slurry & waterpoofing grout. Then Providing and laying APP (Atactic Polypropylene Polymer) modified prefabricated five layer 4mm/3mm thick water proofing membrane, black finished reinforced with non- woven polyester matt consisting of a coat of bitumen primer for bitumen membrane @ 0.40 ltr/sqm. by the same membrane manufacturer 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 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 junction of the bottom raft with the vertical wall is to be opened and filled with metal aggregate of nominal size along with injection (coupling). In the wall area all construction joints are opened to provide Injections grouting. Injection grouting shall be provided as and where found necessary . The injections are grouted with cement slurry and chemical compound.

After the injection grouting . We shall provide a layer of METAL COBA  of about 2" thick on the floor .the vertical wall and floor  is then covered with  "Leak proof " water proof plaster layer of about 1" thick.