Water proofing treatment to terrace of Telephone Bhawan building at Babupara, Imphal

Amount

Repairs to plaster of thickness 12 mm to 20 mm in patches of area 2.5 sq. meters and under, including cutting the patch in proper shape, raking out joints and preparing and plastering the surface of the walls complete, including disposal of rubbish to the dumping ground , all complete as per directions of Engineer-In-Charge.

With cement mortar 1:4 (1 cement : 4 fine sand).

Providing and laying four courses water proofing treatment with bitumen felt over roofs consisting of first and third courses of blown bitumen 85/25 or 90/15 conforming to IS : 702 applied hot @ 1.45 Kg per square metre of area for each course, second course of roofing felt type 3 grade-I (hessian based self finished bitumen felt) and fourth and final course of stone grit 6 mm and down size or pea sized gravel spread at 6 cubic decimeter per square metre, including preparation of surface but excluding grading complete with :

Bitumen felt (hessian base) type 3 grade I conforming to IS : 1322

Dismantling and disposal of bituminous felt from old bituminous felt water proofing treatment at Terrace (about 17.00m from ground level) including using blow lamp to melt bitumen to facelitate removing and disposal of the rubbish outside the compound upto a lead of 15km. And the surface should be thoroughly cleaned of dust and dirts complete as per the direction of the Engineer in charge.

M Dolando Singh