Repair of New Bimblitan School

Amount

Carefully chipping of damaged, dicoriorated, spalled, debinded and week concrete from the columns, beams walls, roof of staging structure at all height including removal of rubbish upto a lead of 50 mtr.

Removing rust from existing corroded reinforcement by means of wire brush, hacking scrapping with emery paper or any suitable method to make the reinformement scale free including disposal of rubbish a per the direction of engineer incharge.

Application of anticorrosive paint such as Hind Anti Rust or equivalent on cleaned reinforcement as per manufacture's specification complete including labour and materials (Payment to be made on 25% of exposed area).

Application of bonding coat based on polymer modified cementicious material such as nitobond SBR/ Hind Styrene BR or equivalent @ 0.5 kg/ Sqm (due to rough concrete surface) or equivalent to act as bonding agent between old and new concrete including materials and labour as per manufacture's specification.

Application of polymer modified M-20 grade concrete with 6mm down stone chips admixed with Nitoboind SBR/ Hind Styrene BR @ 2 Kg/sqm or equivalent and plasticizer Hind plast IWA conplast SP 337 or equivalent @ 100 ml/sqm for a thickness of average 50 mm (the concrete is to be applied within the pot life of the bonding coat when it is tacky)

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

Reinforced cement concrete work in walls (any thickness), including attached pilasters, buttresses, plinth and string courses, fillets, columns, pillars, piers, abutments, posts and struts etc. above plinth level up to floor five level, excluding cost of centering, shuttering, finishing and reinforcement :

1:1.5:3 (1 cement : 1.5 coarse sand(zone-III) : 3 graded stone aggregate 20 mm nominal size).

Reinforced cement concrete work in beams, suspended floors, roofs having slope upto 15° landings, balconies, shelves, chajjas, lintels, bands, plain window sills, staircases and spiral stair cases upto floor five level excluding the cost of centring, 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).

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

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

Columns, Pillars, Piers, Abutments, Posts and Struts

Weather shade, Chajjas, corbels etc., including edges

12 mm cement plaster of mix : 1:4 (1 cement: 4 fine sand) admixed with integral waterproofing admixture Hind plast IWA @ 0.5% by the weight of cement.

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

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

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)

12 mm cement plaster of mix :

1:4 (1 cement: 4 fine sand)

Providing and laying hollow cement concrete block walling 200mm thick consisting hollow block of size 400 x 200x200mm of mix 1:3:6(1cement :3 coarse sand:6 graded stone agg. 10mm nominal down size) laid in cement mortar 1:6(1cement : 6 coarse sand)

Steel work in built up tubular (round, square or rectangular hollow tubes etc.) trusses etc., including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer, including welding and bolted with special shaped washers etc. complete.

Electric resistance or induction butt welded tubes

Dismantling roofing including ridges, hips, valleys and gutters etc., and stacking the material within 50 metres lead of:

Asbestos sheet

Dismantling cement asbestos or other hard board ceiling or partition walls including stacking of serviceable materials and disposal of unserviceable materials within 50 metres lead.

Providing and fixing plain multipurpose cement board(Hight pressure steam cured) with suitable screws for cement particle board in ceiling etc. complete (frame work to be paid seperatately).

6 mm thick Cement fiber board as per IS: 14862

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.

Providing and fixing precoated galvanised steel sheet roofing accessories 0.50 mm (+ 0.05 %) total coated thickness, 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 using self drilling/ self tapping screws complete :

Ridges plain (500 - 600mm)

Barge board (Upto 300 mm)

Providing and fixing powder coated aluminium work (minimum thickness of powder coating 50 micron) consisting of tee/ angle sections, of approved make conforming to IS : 733 in frames of false ceiling including aluminium angle cleats with necessary C.P. brass/ stainless steel sunk screws, aluminium perimeter angles fixed to wall with stainless steel rawl plugs @ 450 mm centre to centre and fixing the frame work to G.I. level adjusting hangers 6 mm dia. with necessary cadmium plated machine screws all complete as per approved architectural drawings and direction of the Engineer-in- charge (level adjusting hangers, ceiling cleats and expansion hold fasteners to be paid for separately).

Extra for providing and fixing wind ties of 40x 6 mm flat Aluminium section.

Providing and fixing 4mm dia G.I level Adjusting hangers(Upto 1200mm length) fixed to roof Truss member and ceiling member by tieing.

ANAND TRADERS AND CONSTRUCTION