External face lifting and other miscellaneous works to back and side wall of Door Sanchar Bhawan, Unit-IX, Bhubaneswar.

Amount

Dismantling and Demolishing

Dismantling old plaster or skirting raking out joints and cleaning the surface for plaster including disposal of rubbish to the dumping ground within 50 metres lead.

Dismantling G.I pipes (external work) including excavation and refilling trenches after taking out the pipes, manually/by mechanically means including stacking of pipes within 50 metres lead as per direction of Engineer-in-charge:

15 mm to 40 mm nominal bore

Concrete Work

Providing and laying cement concrete in retaining walls, return walls, walls (any thickness) including attached pilasters, columns, piers, abutments, pillars, posts, struts, buttresses, string or lacing courses, parapets, coping, bed blocks, anchor blocks, plain window sills, fillets, sunken floor, etc., up to floor five level, excluding the cost of centering, shuttering and finishing :

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

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

Extra for concrete work in superstructure above floor V level for each four floors or part thereof

Finishing

12 mm cement plaster of mix :

1:6 (1 cement: 6 coarse sand)

Finishing walls with Premium Acrylic Smooth exterior paint with Silicone additives of required shade

New work (Two or more coats applied @ 1.43 ltr/ 10 sqm. over and including priming coat of exterior primer applied @ 2.20 kg/10 sqm).

Removing dry or oil bound distemper, water proofing cement paint and the like by scrapping, removing dust by sand papering ,by washing with water etc and preparing the surface smooth including necessary repairs to scratches etc. complete.

Painting (one or more coats) on rain water, soil, waste and vent pipes and fittings with black anticorrosive bitumastic paint of approved brand and manufacture on old work :

75 mm diameter pipes .

100 mm diameter pipes .

150 mm diameter pipes .

Painting with synthetic enamel paint of approved brand and manufacture of required colour to give an even shade :

One or more coats on old work.

Repairs to Buildings

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).

Renewing glass panes, with putty and nails wherever necessary including racking out the old putty:

Float glass panes of nominal thickness 4 mm (weight not less than 10kg/sqm).

Water Supply System

Providing and fixing Chlorinated Polyvinyl Chloride (CPVC) pipies having thermal stability for hot & cold water supply including all CPVC plain & brass threaded fittings. This includes jointing of pipes & fittings with one setp CPVC solvent cement, trenching,refilling & testing of joints complete as per direction of Engineer-in-charge:External work

20 mm nominal outer dia.pipes

25 mm nominal outer dia.pipes

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

25 mm average thickness

Providing, mixing and applying SBR polymer (of approved make) modified Cement mortar in proportion of 1:4 (1 cement: 4 graded coarse sand with polymer minimum 2% by wt. of cement used) as per specifications and directions of Engineer-in-charge.

Note: Measurement and payment: The pre-measurement of thickness shall be done just after the surface preparation is completed and Payment under this item shall be made only after proper wet curing has been done and surface has been satisfactorily evaluated by sounding / tapping with a blunt metal instrument and/or the 75mm size cube crushing strength at the end of 28 days to be not less than 30 N/Sqmm2).

12 mm average thickness.

NEW TECHNOLOGIES AND MATERIALS

Easing and adjusting of steel glazed windows shutters at any floor by straightening of window members, repairing of hinges etc. including hiring of portable welding machine wherever required all complete as per direction of Engineer-in-charge.

P/F PVC union in new PVC pipe line i/c cutting and threading the pipe and making good all complete a) 20 to 25 mm nominal bore dia

DEEPAK KUMAR DAS