Water proofing treatment to Roof of Telephone Kendra (ETR Portion) at Udit Nagar, Rourkela.

Amount

Sub-Head : Dismantling and Demolishing

Dismantling C.I. or asbestos rain water pipe with fittings and clamps including stacking the material within 50 metres lead :

150 mm dia pipe

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 : Roofing

Making Khurras 45X45cm with average minimum thickness of 5 cm cement concrete 1:2:4 ( 1 cement : 2 coarse sand : 4 graded stone aggregate of 20mm mnominal size ), finished with 12 mm cement palster 1:3 ( 1 cement : 3 coarse sand ) and a coat of neat cement rounding the edges and making and finishing the outlet complete including dismantaling existing Khurra and disposal of the unserviciable material upto lead of 50 Metre

Providing and fixing on 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.

110 mm diameter

Providing and fixing 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.

75 mm bend

Shoe (Plain)

75 mm Shoe

Providing and fixing unplasticised -PVC pipe clips of approved design to unplasticised - PVC rain water pipes by means of 50x50x50 mm hardwood plugs, screwed with M.S. screws of required length including cutting brick work and fixing in cement mortar 1:4 (1 cement : 4 coarse sand) and making good the wall etc. complete.

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 : Repairs to Building

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 (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 of the same as per direction EIC.

Making chases up to 7.5x7.5x cm in walls i/c making good and finishing with matching surface after inserting Bitmen felt housing G/PVC Pipe etc complete as per direction EIC.

Credit for

Damaged CI Pipe