Water Proofing Treatment to TE Building at Brjarajnagar Dist Jharsuguda under Sambalpur BA.(2nd Call)

Amount

Sub-Head : Dismantling and Demolishing

Disposal of building rubbish / malba / similar unserviceable, dismantled or waste materials by mechanical means, including loading, transporting, unloading to approved municipal dumping ground or as approved by Engineer-in-charge, beyond 50 m initial lead, for all leads including all lifts involved.

Sub-Head : Concrete Work

Extra for providing and mixing water proofing material in cement concrete work in doses by weight of cement as per manufacturer’s specification.

Sub-Head : Roofing

Providing and fixing precoated galvanised iron profile sheets (size, shape and pitch of corrugation as approved by Engineer-in-Charge) of total coated thickness 0.50mm (base metal of minimum 0.45mm thickness with total coating thickness of 0.05mm) with zinc coating 120 grams per sqm as per IS:277, in 240 mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and polyester top coat 15-18 microns. Sheet should have protective guard film of 25 microns minimum to avoid scratches during transportation and should be supplied in single length upto 12 metre or as desired by Engineer-in- charge. The sheet shall be fixed using self drilling /self tapping screws of size (5.5x 55 mm) with EPDM seal, complete upto any pitch in horizontal/ vertical or curved surfaces, excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required.

Sub-Head : Water Proofing

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

Deduct for omitting in water proofing treatment final course of spreading stone grit 6 mm down size or pea sized gravel :

at 6 cudm per sqm

Grading roof for water proofing treatment with

Cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20mm nominal size)

Cement mortar 1:4 (1cement : 4 coarse sand)

Sub-Head : MARKET RATED ITEMS

Dismantling , removing and cleaning old /damged tarfelt i/c scrapping from wall/colmn/roof surace and disposal the same as per direction EIC.