Renovation and Rehabilitation of three old classroom building located at south side of the Government Primary School Campus, Maducarai, Nettapakkam Commune, Puducherry.

Amount

Clearing jungle including uprooting of rank vegetation, grass, brush wood, trees and saplings of girth upto 30cm measured at a height of 1m above ground level and removal of rubbish upto a distance of 50 m outside the periphery of the area cleared.

Centering and shuttering including strutting , propping etc and removal of form for -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 (ISI BRAND OF APPROVED MAKE) Fe - 415 or more.

Providing and laying in position machine batched and machine mixed design mix M-25 grade cement concrete for reinforced cement concrete work , using cement content as per approved design mix , including pumping of concrete to site of laying but excluding the cost of centering , shuttering , finishing and reinforcement , including admixtures in recommended proportions as per IS : 9103 to accelerate, retard setting of concrete , improve workability without impairing strength and durability . Note:- Cement content considered in this item is @ 330 kg / cum. Excess or less cement used as per design mix is payable or recoverable separately. - All work above plinth level upto floor V level

Brick work with common burnt clay F.P.S (non modular ) bricks of class designation 3.5 in superstructure above plinth level upto floor five level in all shapes and sizes in - cement mortar 1:6 ( 1 cement : 6 coarse sand)

Providing and fixing M.S.grills of required pattern in frames of windows etc with M.S. flats , square or round bars etc. including priming coat with approved steel primer all complete - Fixed to steel windows by welding

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 - 40mm thick with 20mm nominal size stone aggregate

Providing and fixing glass strips in joints of terrazo / cement concrete floors - 40mm wide and 4mm thick.

Providing and laying pressed clay tiles (as per approved pattern 18mm nominal thickness of approved size) on roofs jointed with cement mortar 1:4 (1 cement : 4 coarse sand) mixed with 2% integral water proofing compound , laid over a bed of 20mm thick cement mortar 1:4 (1 cement : 4 coarse sand) and finished neat complete

Lime concrete terracing on roofs of required thickness laid to fall with 25mm nominal size brick aggregate and 50% lime mortar 1:2 (1 lime putty : 2 surkhi) rammed and finished with gur and belgiri treatment complete including rounding of junctions with Parapet wall complete.

Making khurras 45x45cm with average minimum thickness of 5 cm cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate of 20mm nominal size) over P.V.C. sheet 1m x1m x 400 micron , finished with 12 mm cement plaster 1:3 ( 1cement : 3 coarse sand) and a coat of neat cement , rounding the edges, making and finishing the outlet complete.

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 10mm 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 10mm gap for thermal expansion - Single tee without door -110x110x110mm.

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 10mm gap for thermal expansion - shoe (plain) - 110mm shoe.

Providing and fixing unplasticised - PVC pipe clips of approved design to unplasticised- PVC rain water pipes by means of 50x50x50mm hard wood plugs , screwed with M.S. screws of required length, including cutting brickwork and fixing in cement mortar 1:4 ( 1 cement : 4 coarse sand) and making good the wall etc., complete - 110mm

15 mm cement plaster on the rough side of single or half brick wall of mix 1:5 (1 cement : 5 fine sand)

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

Finishing with deluxe multi surface paint system for interiors and exteriors using primer as per manufacture's specification - Two or more coats applied on walls @ 1.25 ltr / 10 sqm over and including one coat of special primer applied @ 0.75 ltr / 10 sqm.

Painting with synthetic enamel paint of approved brand and manufacutre to give an even shade – Two or more coats on new work.

White washing with lime to give an even shade - Old work (two or more coats).

Removing white or colour wash by scrapping and sand papering and preparing the surface smooth including necessary repairs to scratches etc.complete

Taking out existing wooden door shutter , repair by cutting , painting etc.and refixing of repaired door shutters to existing door frames , including replacement of hinges with screws etc. as require all complete

Demolishing R.C.C work manually / by mechanical means including stacking of steel bars and disposal of unserviceable material within 50 metres lead.

Demolishing cement concrete manually / by mechanical means including disposal of material within 50 metres lead - nominal concrete 1:4:8 or leaner mix (including equivalent design mix).

Demolishing brick work manually / by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead - in cement mortar.

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 sqm and below

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 - 50 mm average thickness

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 - 25 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 - Upto and including 12mm dia.

Providing , mixing and applying bonding coat of approved adhesive on chipped portion of RCC as per specifications and 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 coarse sand with polymer minimum 2% by wt.of cement used) as per specifications . Note: Measurement and Payment : The Pre-meaurement 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 / Sqmm) - 25 mm average thickness in two 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 charscteristic compressive strength ( with ordinary portland cement , coarse sand and graded stone aggregate of 10 mm 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) - 50 mm thick in Grade M 25 with cement content not less than 330 kg per cum

Providing two legged scaffolding using 15 cm diameter blue - gum posts or casurina posts or best quality bamboo - posts of 4m over all length (3.0m height + 0.5 m projection + 0.5 into the ground) the distance between the two rows being 1.25 m and the spacing of posts with 0.5 m overlap on either side and braces to step up and providing a platform with country wood planks of 40mm thick and 1m width etc in a complete form using coir and nails 1 m run (Rate of scaffolding for a height of 3 m and lenghth of 1 m).

Providing and fixing welded steel windows of standard rolled steel sections, joints mitred and welded with 15x3mm lugs, 10cm long with steel lugs embedded in cement concrete blocks 15x10x10cm of 1:3:6 (one cement, 3 coarse sand, 6 graded stone aggregate 20mm nominal size) or wooden plugs and screws or with fixing clips or with fixing bolts and nuts as required, including fixing and welding of M.S. sheet of 1.20mm thick with M.S flat beading welded around the panels, welding of hinges, handles, tower bolts, hooks & eyes including the cost of applying a priming coat with ready mixed red oxide Zinc chromate primer of approved brand and manufacture etc., complete - Windows side hung/top hung.

Disposal of Moorum / building rubbish / similar unserviceable dismantled or waste material by mechanical transport including loading, transporting unloading within a lead of 10km for all lifts, complete all as per the directions of Engineer-in-charge.