Central Building Research Institute Tender

Applying two coat of bituminous aluminium paint (super silver shield of Dr. Fixit/STP/Asian or equivalent) on the existing APP sheet roof treatment by using appropriate brush manually including cleaning/dusting of existing APP sheet surface etc. complete in two successive coats applied @ 0.25 litre per sqm.

Providing Tractor trolly for shifting of malba, debrise, soil, various old APP pieces and materials from construction site to outside of institute and out site area of nagar nigum Roorkee including loading unloading complete work in all respect as per direction of Engineer-in-charge.

Providing and laying APP (Atactic Polypropylene Polymer of approved make Dr. Fixit /STP/Asian or equivalent standard make) 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 :3 mm thick