Special repair and rehabilitation work with retrofitting by guiniting method including painting of 2 blocks of type II staff quarter in old Telecom Colony Campus at Hazaribagh

Amount

SH: RCC WORK

Centering and shuttering including strutting, propping etc. and removal of form for:

(a) Weather shade, Chajjas, corbels etc., including edges.

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete above plinth level.

Thermo-Mechanically Treated bars of grade Fe-500D or more

Reinforced cement concrete work in beams, suspended floors, roofs having slope up to 15° landings, balconies, shelves, chajjas, lintels, bands, plain window sills, staircases and spiral stair cases above plinth level up to floor five level, excluding the cost of centering, shuttering, finishing and reinforcement with 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).

SH: WOOD WORK

Providing and fixing ISI marked flush door shutters conforming to IS : 2202 (Part I) decorative type, core of block board construction with frame of 1st class hard wood and well matched teak 3 ply veneering with vertical grains or cross bands and face veneers on both faces of shutters.

30 mm thick including ISI marked Stainless Steel butt hinges with necessary screws

SH: STEEL WORK

Steel work welded in built up sections/ framed work including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer using structural steel etc. as required.

In gratings, frames, guard bar, ladder, railings, brackets, gates and similar works.

SH: ROOFING

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.

110 mm bend.

Single tee without door.

Providing and fixing unplasticised -PVC pipe clips of approved design to unplasticised - PVC rain water pipes by means of 50x50x50 mm hard wood 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.

Providing and fixing precoated galvanised iron profile sheets (size, shape and pitch of corrugation as approved by Engineer-in-charge) 0.50 mm (+ 0.05 %) total coated thickness 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.

SH: FINISHING

12 mm cement plaster finished with a floating coat of neat cement of mix :

1:3 (1 cement: 3 fine sand).

Finishing walls with Acrylic Smooth exterior paint of required shade:

New work (Two or more coat applied @ 1.67 ltr/10 sqm over and including priming coat of exterior primer applied @ 0.90 kg/10 sqm).

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

Two or more coats on new work over and under coat of suitable shade with ordinary paint of approved brand and manufacture

Providing and applying white cement based putty of average thickness 1 mm, of approved brand and manufacturer, over the plastered wall surface to prepare the surface even and smooth complete.

Applying priming coat with primer of approved brand and manufacture having low VOC (Volatile Organic Compound) content:

With ready mixed pink or Grey primer of approved brand and manufacture on wood work (hard and soft wood) having VOC content less than 50 gram per litre.

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

SH: 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 direction of Engineer-in-Charge.

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

Renewing glass panes, with wooden fillets wherever necessary:

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

Providing and fixing double scaffolding system (cup lock type) on the exterior side, up to seven story height made with 40 mm dia M.S. tube 1.5 m centre to centre, horizontal & vertical tubes joining with cup & lock system with M.S. tubes, M.S. tube challies, M.S. clamps and M.S. staircase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for the required duration as approved and removing it there after .The scaffolding system shall be stiffened with bracings, runners, connection with the building etc wherever required for inspection of work at required locations with essential safety features for the workmen etc. complete as per directions and approval of Engineer-in-charge .The elevational area of the scaffolding shall be measured for payment purpose .The payment will be made once respective of duration of scaffolding. Note: - This item to be used for maintenance work judicially, necessary deduction for scaffolding in the existing item to be done.

SH: DISMANTLING & DEMOLISHING

Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge.

Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix)

Dismantling doors, windows and clerestory windows (steel or wood) shutter including chowkhats, architrave, holdfasts etc. complete and stacking within 50 metres lead:

Of area 3 sq. metres and below.

Taking out doors, windows and clerestory window shutters (steel or wood) including stacking within 50 metres lead:

Of area 3 sq. metres and below.

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

100 mm dia pipe.

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

15 mm to 40 mm nominal bore.

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.

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.

SH: SANITARY INSTALLATIONS

Providing and fixing soil, waste and vent pipes :

100 mm dia.

Sand cast iron S&S pipe as per IS: 1729.

Providing and filling the joints with spun yarn, cement slurry and cement mortar 1:2 (1 cement : 2 fine sand) in S.C.I./ C.I. Pipes:

100 mm dia pipe.

Providing and fixing bend of required degree with access door, insertion rubber washer 3 mm thick, bolts and nuts complete.

100 mm dia.

Sand cast iron S&S pipe as per IS: 1729.

Providing and fixing double equal junction of required degree with access door, insertion rubber washer 3 mm thick, bolts and nuts complete :

100x100x100x100 mm

Sand cast iron S&S as per IS - 1729.

Providing and fixing single equal plain junction of required degree with access door, insertion rubber washer 3 mm thick, bolts and nuts complete.

Sand cast iron S&S as per IS - 1729.

SH: WATER SUPPLY

Providing and fixing G.I. pipes complete with G.I. fittings and clamps, i/c cutting and making good the walls etc. Internal work - Exposed on wall.

20 mm dia nominal bore

25 mm dia nominal bore.

SH: WATER PROOFING

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 1:3 (1 cement : 3 coarse sand)

SH: REPAIRS & REHABILITATION WORK

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.

50mm average thickness.

25 mm average thickness.

Providing, mixing and applying bonding coat of approved adhesive on chipped portion of RCC as per specifications and direction of Engineer-In-charge complete in all respect.

Epoxy bonding adhesive having coverage 2.20 sqm/kg of approved make.

Providing, erecting, maintaining and removing temporary protective screens made out of specified fabric with all necessary fixing arrangement to ensure that it remains in position for the work duration as required by the Engineer-in-charge.

Wooven PVC cloth

Cleaning of exposed concrete surface of sticking material including loose and foreign material by sand blasting with coarse sand followed by and including cleaning with oil free air blast as per direction of Engineer in charge.

Replacement of sufficiently damaged reinforcements or providing additional reinforcements with the damaged reinforcements by welding etc. including cost of reinforcement (TMT bar of required dia),mobilization etc. complete as per direction of Engineer-in-Charge. (work is to be executed upto 20 m heights above G.L).

Providing ,mixing and applying SIKA TOP ARMATEC ® 108 or equivalent @ 0.70 Kg/Sqm (Single coat) as approved by Engineer-in-charge and as per manufacturer's specification for anti- corrosive treatment of reinforcement and adjacent concrete (considering 40% of the dismantled concrete surface) all complete as per direction of Engineer-in-charge.

Guiniting the damaged R.C.C. columns, beams and slab after applying a bonding coat when it is taking (cement : coarse sand) = 1:3 and ‘SIGUNITE’ powder or equivalent as approved admixure as Additive set accelerator @ 2% to 4% by weight of cement and SIGUNITE powder: water = 1:4 to 10 (by volume) as per manufacturer’s specification upto 50 mm thick including other cost like mobilization etc. complete . (Bond coat shall be paid separately). (works is to be executed upto 20 m heights above G.L)

Plastering in cement mortar 1:3 (1 cement:3 fine sand) of 12 mm thick admixed with water proofing compound of approved make such as plastocrete super or equivalent confirming to IS 9103-1999,IS 2645-1975 and ASTM C-494-86 Type A @ 0.2% by weight of cement and as per manufacturer specification complete to improve water tightness and workability without increased water content and as per direction of Engineer in Charge. (work is to be executed upto 20 m heights above G.L).

Plastering in cement mortar 1:3 (1 cement:3 fine sand) of 6 mm thick admixed with water proofing compound of approved make such as plastocrete super or equivalent confirming to IS 9103-1999,IS 2645-1975 and ASTM C-494-86 Type A @ 0.2% by weight of cement and as per manufacturer specification complete to improve water tightness and workability without increased water content and as per direction of Engineer in Charge.(work is to be executed upto 20 m heights above G.L).

Extra for mixing Recron 3S of reliance or equivalent in Cement mortar plaster of all thickness in the proportion of 1 packet (125 gm) in 50 Kg of cement complete as directed by E-I-C.

Credit for old dismantled tor steel.

K C SARDAR (BID ID -850362)