EE/BSNL/CD/SNR/20/2025-26

Amount

SUB HEAD : EARTH WORK Earth work in excavation by mechanical means (Hydraulic excavator) / manual means over areas (exceeding 30cm in depth, 1.5m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth, lead up to 50m and lift up to 1.5m,as directed by Engineer-in-Charge. a) All kinds of soil.

SUB HEAD: CONCRETE WORK Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : a) 1:2:4 (1 cement : 2 coarse sand(zone-III) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources)

b) 1:5:10 (1 cement : 5 coarse sand(Zone-III) : 10 graded stone aggregate 40 mm nominal size)

Centering and shuttering including strutting, propping etc. and removal of form work for : a) Foundations, footings, bases for columns.

SUB HEAD : REINFORCED CEMENT CONCRETE Reinforced cement concrete work in walls (any thickness), including attached pilasters, buttresses, plinth and string courses, fillets, columns, pillars, piers, abutments, posts and struts etc. above plinth level up to floor five level, excluding cost of centering, shuttering, finishing and reinforcement : a) 1:1.5:3 (1 cement : 1.5 coarse sand(zone-III)derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources)

Centering and shuttering including strutting, propping etc. and removal of form for : a) Walls (any thickness) including attached pilasters, butteresses, plinth and string courses etc.

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete at all floor leveL. a) Thermo-Mechanically Treated bars of grade Fe-500D or more.

SUB HEAD : MASONARY WORK Half brick masonry with common burnt clay F.P.S. (non modular) bricksof class designation 7.5 in foundations and plinth in : a) Cement mortar 1:4 (1 cement : 4 coarse sand)

SUB HEAD: FINISHING 12 mm cement plaster of mix : a) 1:6 (1 cement: 6 fine sand)

Cement plaster 1:3 (1 cement: 3 coarse sand) finished with a floating coat of neat cement. a) 12 mm cement plaster

Finishing walls with Acrylic Smooth exterior paint of required shade : a) New work (Two or more coat applied @ 1.67 ltr/10 sqm over and including priming coat of exterior primer applied @ 0.90 litre/10 sqm)

SUB HEAD : DRAINAGE Providing and laying high pressure upvc spigot and socket Integrated Rubber Ring (IRR) pipes (working Pressure 6.00Kgf/Square Centimetre ) conforming to IS 13592 Type B including jointing with seal ring (IRR) leaving 10mm gap for thermal expansion a) 200 mm Dia Single shocketed Pipe.

SUB HEAD: NEW TECHNOLOGIES AND MATERIALS Chipping of unsound/weak concrete material from slabs, beams, columns etc. with manual Chisel and/ or by standard power driven percussion type or of approved make including tapering of all edges, making square shoulders of cavities including cleaning the exposed concrete surface and reinforcement with wire brushes etc. and disposal of debris for all lead and lifts all complete as per direction of Engineer-In-Charge a) 50 mm average thickness

Cleaning of reinforcement from rust from the reinforcing bars to give it a total rust free steel surface by using alkaline chemical rust remover of approved make with paint brush and removing loose particles after 24 hours of its application with wire brush and thoroughly washing with water and allowing it to dry, all complete as per direction of Engineer-In-Charge. a) Bars upto 12 mm diameter

b) Bars above 12 mm diameter

Satya Dev Yadav (BID ID -893340)