Public Works Department Tender

Providing and laying in situ seven course water proofing treatment with APP (Atactic poly- propylene) modified Polymeric membrane over roof consisting of first coat of bitumen primer @ 0.40 litre per sqm, 2nd, 4th & 6th courses of bonding material @ 1.20 Kg/ sqm, which shall consist of blown type bitumen of grade 85/25 conforming to IS: 702, 3rd and 5th layers of roofing membrane APP modified Polymeric membrane of specified thickness, weight and centre core, HMHDPE film sandwiched on both sides with polymeric mix and the polymeric mix is protected on both side with 20 micron HMHDPE film. 7th, the top most layer shall be finished with brick tiles of class esignation 10 grouted with cement mortar 1:3 (1cement:3 fine sand) mixed with 2% integral water proofing compound by weight of cement over a 12 mm layer of cement mortar 1:3 (1 cement: 3 fine sand) and finished neat (item of laying brick tiles shall be paid for separately.) Modified Polymeric membrane 2.0 mm thick of 3.0 Kg/ sqm weight consisting of five layers prefabricated with centre core as 100 micron

Tile brick masonry work 5 cm thick with common burnt clay non modular tile bricks ofclass designation 10 in cement mortar 1:3 (1 cement : 3 coarse sand) and curing complete in superstructure above plinth level upto floor five level.

Cement concrete flooring 1:2:4 (1cement: 2 coarse sand: 4 graded stone aggregate) finished with a floating coat of neat cement including cement slurry and curing complete, but excluding the cost of nosing of steps etc. complete. 50 mm thick with 20mm nominal size stone aggregate.