Structural repair works and face lifting works both internal and external MBM Telephone Exchange building in Kumbakonam

Amount

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

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

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

Columns, Pillars, Piers, Abutments, Posts and Struts

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete at all floor levels.

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

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 5.0 in superstructure above plinth level up to floor V level in all shapes and sizes in :

Cement mortar 1:6 (1 cement : 6 coarse sand)

Providing and fixing aluminium extruded section body tubular type universal hydraulic door closer (having brand logo with ISi, IS : 3564, embossed on the body, door weight upto 36 kg to 80 kg and door width from 701 mm to 1000 mm), with double speed adjustment with necessary accessories and screws etc. complete.

Cement concrete flooring 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate) finished with a floating coat of neat cement, including cement slurry, but excluding the cost of nosing of steps etc. complete.

40 mm thick with 20 mm nominal size stone aggregate

Providing and laying pressed clay tiles (as per approved pattern 20mm nominal thickness of approved size) on roofs jointed with cement mortar 1:4 (1 cement :4 coarse M sand) mixed with 2% integral water proofing compound, laid over a bed of 20mm thick cement mortar 1:4( 1 cement : 4 coarse M sand) and finished neat complete.

12 mm cement plaster of mix :

1:6 (1 cement: 6 fine M sand)

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 @ 2.20 kg/10 sqm).

White washing with lime to give an even shade : a) Old work (one or more coats)

Wall painting with plastic emulsion paint of approved brand and manufacture to give an even shade :

One or more coats on old work.

Painting with synthetic enamel paint of approved brand and manufacture of required colour to give an even shade :manufacture of required colour to give an even shade : a) One or more coats on old work

Finishing walls with Acrylic Smooth exterior paint of required shade :

a) Old work (One or more coat applied @ 0.83 ltr/ 10 sqm) on existing cement paint surface).

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.

a) With cement mortar 1:4 (1 cement : 4 fine M sand).

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

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

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.

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.

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

In cement mortar

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

150 mm dia and above pipe

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.

Providing and fixing white vitreous china flat back or wall corner type lipped front urinal basin of 430x260x350 mm or 340x410x265 mm sizes respectively

Providing and fixing P.V.C. waste pipe for sink or wash basin including P.V.C. waste fittings complete.

a )40 mm dia Flexible pipe 40 mm dia

Providing and fixing mirror of superior glass (of approved quality) and of required shape and size with plastic moulded frame of approved make and shade with 6 mm thick hard board backing : a)Rectangular shape 453x357 mm

Providing and fixing uplasticised PVC connection pipe with brass unions : 45 cm length 20 mm nominal bore

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

15 mm nominal dia Pipes

20 mm nominal dia Pipes

25mm nominal dia Pipes

Providing and fixing G.I. Union in existing G.I. pipe line, cutting and threading the pipe and making long screws, including excavation,refilling the earth or cutting of wall and making good the same complete

15 mm nominal bore each

20 mm nominal bore each

25 mm nominal bore each

Providing and fixing C.P. brass bib cock of approved quality conforming to IS:8931:

15 mm nominal bore.

Providing and fixing C.P. brass stop cock (concealed) of standard design and of approved make conforming to IS:8931.

15 mm nominal bore.

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

50mm average thickness

75mm 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.

Bars upto 12 mm diameter

Bars above 12 mm diameter

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.

SBR Polymer (@10% of cement weight) modified cementitious bond coat @2.2 kg cement per sqm of surface area mixed with specified proportion of approved polymer

Providing, mixing and applying SBR polymer (of approved make) modified Cement mortar in proportion of 1:4 (1 cement: 4 graded M 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/ mm2).

12 mm average thickness

25 mm average thickness in 2 layers.

50 mm average thickness in 3 layers.

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, M 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 and 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)

a) 50mm thick in Grade M 25 with cement content not less than 330 kg per cum

b) 75mm thick in Grade M 25 with cement content not less than 330 kg per cum

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.

Woven PVC Cloth

Cleaning the entire terrace ,khurras,porches top including removal of plants if any and disposal of rubbishes etc complete as directed by Engineer-in-charge.

Cutting tree branches that fall closer to the building and other structures including disposal of the unserviseables from the compound.

Removal of blockage in clogged open sewer line including removing the wastages and ensuring free flow of sewage within the compound.

Cleaning of all toilets including fittings like wash basins, urinals, water closets, mirrors , floor and wall tiles etc complete with suitable soap solutions and toilet cleaners etc complete as directed by Engineer-in-charge.

Cleaning the underground water sump size upto (3.00x3.00x3.00)meters including removing the sludge, applying bleaching powder and thoroughly cleaning all the surface of the sump etc complete as per directions of Enginne-in-charge.

Cleaning the toilet shafts thoroughly including taking out the rubbishes, wastes and removing blocks if any including putting bleaching powder etc complete as directed by Engineer-in-charge.

Providing and fixing stainless steel grating of approved quality and make.

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. 150 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.

a) Bend 87.5° 150 mm bend

b) Shoe (Plain) 150 mm Shoe

Providing and fixing unplasticised -PVC pipe clips of approved design to unplasticised - PVC rain water pipes by means of 50x50x50mm hardwood 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. a)150 mm

Credit of available bricks from demolishing masonry.

Credit of steel bars from dismantlment.

Credit of Cast iron pipes (Rain water line) from dismantlment.

K ABBAS MANTHIRI (BID ID -815805)