Repair and maintenance to external surface of Block No-II (Type-II staff quarters no-1 to 6) in Coaxial Colony-I at Balasore.

Amount

Sub-Head : Dismantling and 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)

Demolishing R.C.C. work manually/ by mechanical means including stacking of steel bars and disposal of unserviceable material within 50 metres lead as per direction of Engineer - in- charge.

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 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.

Sub-Head : 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.

Sub-Head : Reinforced Cement Concrete

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) : 3 graded stone aggregate 20 mm nominal size).

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.

Sub-Head : 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,

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

Sub-Head : Finishing

15 mm cement plaster on the rough side of single or half brick wall of mix :

1:6 (1 cement: 6 fine sand)

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

Two or more coats on new work.

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.

Finishing walls with Acrylic Smooth exterior paint of required shade :

Old work (Two or more coat applied @ 1.67 ltr/ 10 sqm) on existing cement paint surface).

Sub-Head : 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 wooden fillets wherever necessary:

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

Sub-Head : Water Supply

Providing and fixing UPVC pipes, having thermal stability for hot & cold water supply, including all UPVC plain & brass threaded fittings, including fixing the pipe with clamps at 1.00 m spacing. This includes jointing of pipes & fittings with one step UPVC solvent cement and testing of joints complete as per direction of Engineer in Charge. : Internal work - Exposed on wall

25 mm nominal outer dia .Pipes.

40 mm nominal outer dia. Pipes.

Repainting G.I. pipes and fittings with synthetic enamel white paint with one coat of approved quality :

25 mm diameter pipe

40 mm diameter 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

50 mm average thickness

Drilling suitable holes in reinforced or plain cement concrete with power driven drill machine to a minimum depth of 100mm upto 200mm in RCC beams, lintels, columns and slabs to introduce steel bars for sunshades/balconies including fixing the steel bars in position using epoxy resin anchor grout of approved make but excluding the cost of reinforcement, all complete as per direction of Engineer-In-Charge.

Upto and including 12mm dia.

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, mixing and applying SBR polymer (of approved make @ minimum 2% by wt. of cement used) modified plain/reinforced cement concrete for structural members having minimum characteristic compressive strength [with ordinary portland cement, coarse sand and graded stone aggregate of 10mm maximum size in proportion as per design criteria] with specified average thickness. Note: Rates shall be for finished surface area of concrete and shall include the cost of labour, concrete and appropriate approved Super- Plasticiser for rendering concrete as flowable and SBR polymer but shall exclude cost of reinforcement, bond coat, Shear Keys, centering and shuttering, strutting, propping etc.

(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)

50mm thick with cement concrete 1:1.5:3 (1 cement : 1.5 coarse sand : 3 graded stone aggregate)

Sub-Head : MARKET RATED ITEMS

Providing and fixing CPVC Union in CPVC pipe including cutting the pipe etc complete as per direction of Engineer-in-charge. a) 40 mm diameter

Providing and fixing CPVC Ball valve with handle in CPVC line etc complete. of approved quality: a)40 mm diameter

Providing and fixing scaffolding system (ropes, nails, screws etc.type) in exterior side upto seven story height made with required sizes of bamboos , wooden ballies /planks etc. at required spacing with ropes, nails and screws jointing system and maintenaing it in serviceable condition for the required duration and removing it thereafter for carrying out repair works to the building or similar works all complete as per the direction of the Engineer-in-charge.( Note: The safty of the workman carrying out the above work will be the sole responsibilty of the contractor, The entire area of the scaffoldings shall be measured for making payment and once for all items requiring scaffoldings ).

Credit for taking in to possession of old and unserviceable dismanteled GI/ SCI pipes

Removing trees and plants from the wall,roof and all parts of the building at any height with application of acid including making good the damages with cement concrete 1:2:4(1cement:2 coarse sand:4 graded stone aggregate of 20 mm nominal size and finishing with cement plaster 1:4 (1cement:4 coarse coarse sand ) etc. complete as per direction of Engineer-in-charge.The rate includes cost of all materials ,labours,T&P,scaffoldings and disposal of debrisses within a lead of 50m.

Cutting and trimming branches of trees including disposing leaves and branches in the nearest municipal dumps outside the primeses etc. complete as per direction of Engineer-in-charge.

Providing and fixing panelling or panelling and glazing in panelled or panelled and glazed shutters for doors, windows and clerestory windows (Area of opening for panel inserts excluding portion inside grooves orrebates to be measured).

9 mm thick BWP marine ply wood conforming to IS:710.

Providing and fixing PVC fittings in New PVC pipe including cutting and threding the pipe and making good all complete as per the direction of Engineer-in-charge.

40mm dia

Elbows

Providing and fixing PVC fittings in New PVC pipe including cutting and threading the pipe and making good all complete as per the direction of Engineer-in-charge

25 mm dia

Male threaded Tee