Waterproof treatment on the terraces of Type VI 04 staff quarter at NGRI Colony CSIR NGRI Hyderabad

Civil Works

Removing of betumin sheet/ coating and cleaning throughly, burning the surface of the bitumin removed with kerosene burner or butane torch with , cleaning including chipping / hammering/haking by gunhammer and removing of water tank platforms and chipping of cement surface and clean the surface with instant spoll absover for cementing works complete the job, disposal of material Out side NGRI campus as desired by the contractor

Extra for providing and mixing water proofing material in cement plaster work including mixing of conplast X421C integral based water proofing compound or equivalent as per manufacturer specifications.

Providing and injecting approved grout in proportion recommended by the manufacturer of fosroc render roc plag /or equalient into cracks/honey-comb area of concrete/ masonry by suitable gun/pump at required pressure including,Stirrer mixed SBR Polymer (of approved make) modified Cement slurry made with Shrinkage Compensating Cement in concrete/RCC work arranging required nozzigle points for pumping and cutting of nipples maintaining the approximate gap bitween the nozziles up 300mm to to 600mm or as per site requirement after curing etc. complete as per directions of Engineer-inCharge

Providing and applying Three or more coats of asian damp proof or equalient of 1st quality and as approved brand cleaning of surface including sides of parapet wall up 300mm to complete the as per Instructions of Engineer-in-charage

Repairs to plaster of thickness 12mm to 40mm in patches of area 2.5 sq. metres or more area with 1:4 (1 cement : 4 coarse sand) and top layer 3 mm thick cement plaster 1:3 (1 cement : 3 fine sand) and mixing of water proof compound of Conplast X421 IC including disposal of rubbish to the dumping ground within Out side the NGRI or at dumping place near at site as suggested by Engineer-In-Charge.

Providing and fixing of on wall face unplasticised - PVC moulded fittings/ reducer 6" to 4" with accessories for unplasticised Rigid PVC rain water pipes conforming to IS : 13592 Type A, including jointing with seal ring conforming to IS : 5382, leaving 10 mm gap for thermal expansion.

Brick work with Cement mortar 1:6 (1 cement : 6 coarse sand) common burnt clay F.P.S. (non modular) bricks of class designation 35 in superstructure above plinth level up to floor V level in all shapes and sizes in

Providing and fixing 110mm diao n wall face unplasticised Rigid PVC rain water pipes conforming to IS : 13592 Type A, including jointing with seal ring conforming to IS : 5382, leaving 10 mm gap for thermal expansion, (i) Single socketed pipes.

Providing and fixing bend 110mm dia on wall face unplasticised - PVC moulded fittings/ accessories for unplasticised Rigid PVC rain water pipes conforming to IS : 13592 Type A, including jointing with seal ring conforming to IS : 5382, leaving 10 mm gap for thermal expansion.