Krishnagiri Dt Bargur Block OMDGF 2025_26 Repair and Renovetion of RCC Roof School Building at Gundiyalnatham PUP School At Oppathavadi Panchayat BRG_79

1.Repair And Renovation of RCC Roof SchoolBuilding at Gundiyalnatham PUP School H/O oppathavadi Rs-15.20 Lakhs

W-0015 Brick / Stone Masonry in cement mortar walls under 3m

W-0035 Dismantling RCC by manual / by using deploying machineries

Supplying and erecting steel centering including necessary supports for plane surfaces for Reinforced Cement Concrete works such as column footings, column pedestals, plinth beams, grade beams, staircase steps, etc. which require only nominal strutting using mild steel sheets of size 90cm x 60cm and 10 BG stiffened with welded mild steel angles of size 25mm x 25mm x 3 mm for boarding, laid over silver oak joists of size 10cm x 6.5cm spaced at about 75cm centre to centre or at suitable intervals etc. complete in all floors complying with standard specifcation. (Payment for centering shall be given after the concrete is laid)

Supplying, fabricating and placing in position Mild Steel / Ribbed Tor Steel grills for all RCC works as per design given including cost of steel and G.I. binding wire in all floors etc. complete complying with standard specification. (Contractor has to make his own arrangements for the supply of steel and binding wire)

Cement Concrete 1:1-1/2:3 (One Cement, One and a half crushed stone M.Sand and Three hard broken stone jelly) using 20 mm gauge hard broken granite stone jelly for all RCC items of works excluding cost of reinforcement grill and fabricating charges centering and shuttering but including laying, vibrating with mechanical vibrators, finishing, curing, etc. and providing fixtures like fan clamps in the RCC floor / roof slabs wherever necessary and bearing surfaces of walls, beams etc. shall be finished smooth with Cement Mortar 1:3 (One Cement and Three M.Sand) and kraft paper laid over it without claiming extra, etc., complete complying with standard specification and as directed by the departmental officers

Brick work using country bricks of size 83/4"x41/4"x23/4" in cement mortar 1:5 (One cement and five M.Sand) including curing neat finishing, etc., complete complying with standard specifiction.

Plastering with Cement Mortar 1:5 (One cement and Five P.Sand), 12mm thick in all floors including curing etc. complete complying with standard specification and as directed by the departmental officers.

Weathering course in brick jelly lime concrete using broken brick jelly of size 20mm uniform gauge in pure slaked lime (no crushed stone M.Sand to be used) to the proportion of brick jelly to lime being 32:12.5 by volume and laid over the RCC roof slab in a single layer of required slope and finished by beating the concrete with wooden beaters of approved pattern, keeping the surface constantly wet by sprinkling lime jaggery water, etc., complete as per standard specification and as directed by the deparmental officers.

Finishing the top of roof with one course of machine pressed tiles of size 230mm x 230mm x 20mm of approved quality set in Cement Mortar 1:3 (One Cement and Three Crushed stone M.Sand) 12mm thick mixed with water proofing compound conforming to ISS at 2% by weight of cement used and the joints pointed neatly to full depth of tiles with the same cement mortar mixed with red oxide and water proofing compound including curing etc., complete complying with standard specification and as directed by the departmental officers

Supplying and applying of two coats of putty of 3mm thick over the exposed RCC surface of ceiling including finishing the joints smoothy with grinding machine and the surface shall be thoroughly cleaned out of dust and scrubbing. The Surface shall then be allowed to dry for atleast 48 hours. It shall then be sand papered (waterproof abrasive sheet) to give a smooth and even surface. Any unevenness shall be made good by applying 1st coat of putty mixed with water on the entire surface including filling up the undulations and applying 2nd coat of putty after 6 hours of 1st coat of putty and then sand papering (waterproof abrasive sheet) the same after it is dry and finishing the surface smoothly, etc., complete complying with standard specifications and as directed by the Departmental Officers. [ The rates are inclusive of hire charges for grinding machine with wheel, cost of sand paper (waterproof abrasive sheet), cost of putty blade, labour charges for grinding the joints and sand papering, two coat of putty, scrapping the putty area to level the surface smooth, etc., complete]. The Putty shoule be got approved by the Executive Engineer before use on work.

Paving the floor with kota stone slab of size 600 x 600 of 18 / 20mm (un-polished) in all floors laid in of cement mortor 1:3 (one cement three M.Sand), 20mm thick and pointed with colour cement neatly including polishing with polishing stone and oxalic acid etc., so as to perfectly smooth and glossy and including hire charges for polishing machine and power consumption charges etc. The kota stone slabs and other materials to be used shall be got approved by the Executive Engineer concerned before use on work, etc., complete as per standard speicification.

Distempering the old walls and ceiling Two coat with best oil bound distemper of approved quality including preparation of surfaces (the colour and quality should be got approved by the Executive Engineer before use) the rate includes cost of brushes, high scaffolding charges, neat finishing, cost of brushes etc., complete complying with standard specification and as directed by the Departmental Officer

Re Painting the walls with Two coats with first class quality Plastic Emulsion paint of approved colour over a priming coat including thorough scraping, clean removal of dirt. The rate includes cost of brushes, sand paper, plaster of parries, putty wherever required and neat finishing etc., complete complying with standard specification and as directed by the Departmental Officer (the colour and quality should be got approved by the Executive Engineer before use) S I No 358

Painting the old iron works two coats with syntactic enamel paint of approved quality and colour including ordinary scraping using brushes and neat finishing etc., complete complying with standard specification and as directed by the Departmental Officer (the colour and quality should be got approved by the Executive Engineer before use)

Supplying and painting two coats new iron work such as steel doors ventilators, window bars etc., (WITHOUT PRIMER)

Painting two coats with approved Black Oxide for Old Black board

Supply and Fixing Steel Door 1.00 x 2.10M

Labour Charges For Fixing Door Including Cost and Conveyance of all Acharges

Supplying and fixing PVC Rain water down fall pipes of following 110mm dia meter etc complete.

Wiring with 2 x 1.5 sq.mm. PVC insulated SC unsheathed FRLS copper conductor of 1100V grade in suitable PVC rigid pipe on wall and ceiling with PVC accessories and with TW switch box and 5A FT switch with painting of suitable colour for open PVC light point / fan point (for electronic regulator) (6 points per coil) SD20

Wiring with 2 x 1.5 sq.mm PVC insulated SC unsheathed FRLS copper conductor of 1100V grade in suitable PVC rigid pipe on wall and ceiling with PVC accessories with 150 x 100 x 113mm TW switch box for 5A 3 pin non inter locking Wall socket with 5A flush type switch with painting of suitable colour with continuous earth wire connection of 1.5 sq.mm copper wire for open PVC plug point SD 36

Wiring with 2 x 4 sq.mm. PVC insulated SC unsheathed FRLS copper conductor cable of 1100V grade in suitable PVC rigid pipe on wall and ceiling with PVC accessories with 150mm x 100mm x 113mm TW switch box in flush with wall with 3mm thick hylem sheet cover for 15A 3 pin flush type non inter locking wall socket with 15A flush type switch with painting of suitable colour with continuous earth wire connection of 4 sq.mm copper wire for open PVC power plug point SD 41

Supply and fixing of 1200 mm ( 48") AC ceiling fan complete with stepped electronic 300 W regulator with 300 mm down rod on the existing clamp. SD 110

Supply and fixing of WT bulk head fitting with guard for 11W CFL SD 83

Supply and fixing of single box type 4'40W fluorescent fitting complete with copper choke and condensor with TW round blocks on wall or ceiling with flu tube with PVC unsheathed copper leads from terminals to the fitting Tube light SD 88

Earthing as per PWD standard with an earth electrode of 2 metre Class 'B' GI pipe of dia not less than 32mm complete with necessary masonry work SD222

Provision For Name Board

Provision For Photo Charges

GST Amount for providing Service to Government Contract Works for the above Construction & Maintenance Works. { GST Amount is the Total GST Amount for overall quoted amount (Both Construction and Maintenance) above this row in column "BB" for all works in this package} (Refer Clause 13.2 & 13.3 of Section 2 of Instruction to Bidders (ITB) of SBD)

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