Mahanagar Telephone Nigam Limited Tender

25 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.(4.1) Bars upto 12 mm diameter

Bars above 12 mm diameter

Drilling suitable holes in reinforced or plain cement concrete with power driven drill machine to a minimum depths 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)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). (7.1)25 mm average thickness in 2 layers

50 mm average thickness in 3 layers

Providing and laying SBR Polymer modified (of approved make @minimum 2% by wt. of cement used) plain/reinforced concrete jacketfor the structural members e.g. columns, pillars, piers, beams etcwith concrete having the specified minimum characteristic compressive strength [with ordinary portland cement, coarse sandand graded stone aggregate of 10mm maximum size in proportionas per design criteria] with specified average thickness all-round existing core of RCC member.Note: Rates shall be for finished surface area of concrete and shallinclude the cost of making holes in existing RCC slab, if required, forpouring concrete in shuttering mould of jacket and appropriate approved Super-Plasticiser for rendering concrete as flowable self compacting 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)75mm thick in Grade M 25 with cement content not less than 330 kg per cum

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

Extra for cutting reinforcement bars manually/ by mechanical means in R.C.C. or R.B. work (Payment shall be made on the cross sectional area of R.C.C. or R.B. work) as per direction of Engineer - in -charge.

Centering and shuttering including strutting, propping etc. and removal of form for :(11.1)Suspended floors, roofs, landings, balconies and access platform

Lintels, beams, plinth beams, girders, bressumers and cantilevers

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) : 3 graded stone aggregate 20 mm nominal size)

Extra for R.C.C./ B.M.C/ R.M.C. work above floor V level for each four floors or part thereof.

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 addition of synthetic Polyester triangular fibre of length 12mm,effective diameter 10-40 microns and specific gravity of 1.34 to 1.40 in cement concrete/RCC/Flooring/water retaining structures by using 125gms of synthetic Polyester triangular fibre for 50 Kg cement used of as per directions of Engineer-in-Charge.

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.

12 mm cement plaster of mix :1:4 (1 cement: 4 coarse sand)

15 mm cement plaster on rough side of single or half brick wall of mix:1:4 (1 cement: 4 coarse sand)

6 mm cement plaster of mix :1:3 (1 cement: 3 fine sand)

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 within 50 metres lead : 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)

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

Painting with synthetic enamel paint of approved brand and manufacture of required colour to give an even shade: Two or more coats on new work over an under coat of suitable shade with ordinary paint of approved brand and manufacture.

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 : New work (Two or more coat applied @ 1.67 ltr/10 sqm over and including priming coat of exterior primer applied @ 2.20 kg/10 sqm)

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).

Providing and fixing factory made Fiberglass Reinforced plastics (F.R.P.) chajja 4mm thick of required colour, size and design made by Resin Transfer Moulding (RTM) Machine Technology, resulting in void free compact laminate in single piece, having smooth gradual slope curvature for easy drainage of water and duly reinforced by 2nos. vertically and 1nos. horizontally 50x2mm thick M.S. flat with 12mm in built hole for grouting on the existing wall along with the 50mm flanges duly inserted and sealed in the wall complete in one single piece casted monolithically, including all necessary fittings . The FRP Chajja should be manufactured using unsaturated Polyester resin as per IS:6746 duly reinforced with fibre glass chopped strand mat (CSM) as per IS:11551 complete with protective Gel coat U/V coating on Top for complete resistance from the extreme of temperature, weather & sunlight,

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 loads including all lifts involved.

Repairing of faulty steel door /windows (all areas) i/c necessary removing of glass panes (if required) necessary repair by welding and replacing of minor faulty parts i.e. M.S. Hinges, pivots, M.S. Path for fastener/stays including oiling etc. for smooth functioning and fixing in the proper way, as per site requirement with necessary new screws nails etc. refixing of glass panes with putty etc. all complete to the satisfaction of Engineer-in-Charge.For doors, windows, partitions , ventilators, openable shutter including chawkhat frame etc.

Credit to work:(Only for unusable scrap items)Reinforcement bars / M.S. Section/old G.I. Pipe

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

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in superstructure above plinth level up to floor V level in all shapes and sizes in : (Scaffolding component deducted)Cement mortar 1:4 (1 cement : 4 coarse sand)

Extra for brick work / AAC block masonry / Tile brick masonry in superstructure above floor V level, for each four floors or part thereof by mechanical means.

Half brick masonry with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in superstructure above plinth level up to floor V level (Scaffolding component deducted)Cement mortar 1:3 (1 cement :3 coarse sand)

Extra for half brick masonry in superstructure, above floor V level for every four floors or part thereof by mechanical means.

Deduct for not providing double scaffolding ;(37.1)SB Polymer 25mm

SB Polymer 50mm

Steelwork

12mm cement plaster

15mm cement plaster

6mm cement plaster

Repair to plaster

Brick work

Half Brickwork