Operation and Maintenance Scheme - 2025-26

Amount

Clean removal of Cement plaster from walls and racking out joints 12mm deep including all labour charges complete complying with standard specifications.

Earth work excavation for foundation and depositing on bank with in the initial lead of 10m and a lift of 2m in hard stiff clay, stiff block cotton, hard red earth, shales, murram, gravel, stoney earth and earth mixed with small size boulders etc. complete. complying with std. specifications.SS 20 B

Plain Cement Concrete 1:4:8 Mix (one part cement, four part sand and eight part of aggrigate) using 40 mm size ISS HBG metal from approved quarry including cost and conveyance of all materials to site. loading and unloading charges and labour charges for mixing. Laying and curing etc., complete as per TNDSS NO: 28 & VI (S2) VI (S5A) VII standard specifications as directed by Engineer incharge.

Random rubble masonry in cement motor 1:5 (one Part of cement, Five part of Crushed Stone Sand (M- Sand)) mix using all granite stones and bond stones for foundation and basement from approved quarry including watering, curing, and labour charges etc., completed as per standard specification.

Brick Work in Cement Mortor 1:5 Mix (one cement, five sand) using new best II Class Bricks of size 9 ” x 4 3/8 “x 2 3/4 ” from approved quarry including cost and conveyance of all materials to site. Loading and unloading charges and labour charges for mixing, laying and curing etc. complete. Complying with std. specifications

Plastering in cm 1:5, 12 mm thick including cost and conveyence all materials to site and all labour charges and incidental charges etc.,completly complying with standard specifications.

Pointing Random Rubble masonry with Cement Mortar1:3 (One Part of Cement and Three Part of Palstering Sand (P- Sand)) to flush pointing , curing etc complete.

Paving the floor with Double charged Vitrified tiles of approved quality and colour of size 600x600x8mm thick of approved make, quality and colour in all floors over a base layer of cement mortar 1:3 (One part of Cement and Three part of Plastering Sand (P- Sand)), 20mm thick and laid straight alignment and pointed neatly with colour cement at the rate of 0.40kg/m2 laid without any air gap in the tiles neatly and fixing in position as per standard specifications and as directed by the departmental officer. The colour & quality of tiles should be got approved by Municipal Engineer before use on work

Supplying and fixing in position Cement based hydrualically pressed Anti-Skid tiles (pattern design) 20mm thick in cement mortar 1:3 (One part of Cement and Three part of Plastering Sand (P- Sand)), 20mm thick and pointed with same colour of cement etc., complete as per standard specification

Dadooing sides of walls with Glazed tils of size 300mmX200mmX6mm including cost and conveyance and all labour and materials complete complying with standard specifications and drawings and as directed by the departmental Engineers.

Supplying and fixing UPVC (Un-Plasticized Polyvinyl Chloride) Windows of casement type (open) from the profile the size of outer frame 60mm x 58mm and shutter profile are reinforcement with GI/1mm 125GSM and 100% corrosion free, the profiles are multi chambered sections with wall thick of 2mm. The EPDM rubber (black colour) covered with over all the edges of frame and shutter the shutter will be provided with Espag multi power point locks and also it operates as handle. The corners and joints should be welded and cleaned. Radiations free pin headed plain or brown colour glass 4mm thick should be provided to the shutter and it should not allow leakage of water even at most ranging storms and should have key lockable action, security protective hinges, strong locking systems and as per size for arresting noise and energy loss. The connecting mechanism between sash and outer frame that enables opening of the window. The window should be fixed to the wall with 100% packing with screws and silicon packing all round the frames. The window should be got approved from the Executive Engineer before use on work

Providing UPVC (Un-Plasticized Polyvinyl Chloride) Door: Providing and fixing casement doors fabricated from unplasticized polyvinyl chloride (uPVC) sections. Profiles: The profiles should be three chamber system which provides high insulation properties with outer frame 60mm x 55mm with an outer wall thickness of 2.4mm. The window unit should be designed with all corner joints mitred and fusion welded. Windows should be steel reinforced with 25 x 24 x 25mm steel reinforcement with a thickness of 1mm to have dimensional stability. The sash should be of 60 x 102mm. The mullion should be of 60 x 74mm. The profiles should have co-extruded seals. Hardware: All the hardware like friction stays, handles should bescrewed with self tapping screws. The handles, locks should be designed so that they cannot be released from outside. Glazing: The window system should be glazed with 5mm plain float glass / 6mm bison lam Installation: The profiles should be cut to length and welded 45 degrees. The window should be designed such that the water drainage does not pass through the reinforcement chamber. The window system should be fixed directly to the plastered brick wall using self expanding nylon plug and driving ms electroplated screws into plug

Supplying, fabricating, erecting and fixing Hilux (or) Equivalent Board False Ceiling upto a ceiling height of 4.5m from floor level.

Supplying and fixing in position best quality approved make white glazed earthenware wash hand basin of size 550 X 400 mm with a pair of cast iron brackets, including cost of 15mm diametre brass chromium plated piller tape,32 mm diametre C.P. Waste union, 32 mm diametre P.V.C. waste pipe with rubber plug and chain, 15mm diametre G.M.wheel valve, 15mm dia brass nipple, 15mm dia nylon connections etc., including fixing the wash hand basin in the wall in position with a pair of C.I. brackets with teak wood plugs and screws and giving necessary water supply connection and paintiung the brackets with two coats of paint over a primimg coat of anticorrosive paint including testing for leackage etc., complete complying with standard specifications

Manufacturing supplying and fixing of MILD STEEL DOOR made out of 50 x 50 x 6 mm M.S angle for outer frame,35 X 35 X 5mm M.S.Angle for outer frame of shutter. The entire shutter area shall be covered with CRC sheets (18 G) with 5Nos, of stiffners using M.S.Flats of size 25 X 6mm at equal intervals horizontally. The corners of the frames and shutter with CRC sheets shall be welded by adopting flash butt welding or any other suitable method. Provision towards 3Nos, of Hinges incase of single shutters / 6Nos,of Hinges incase of Double shutters of 125 X 31 X 1.25mm size placed at appropriate intervals and provisions shall be made for Tower bolts 2Nos, Aldrop 1No. The frame shall be provided with 6Nos,of Hold fast of 200mm length using 50 X 6mm M.S.Flat. The entire frame and shutter shall be provided with one coat of red oxide primer including cost of hold fasts,hinges, locking arrangements, handles wind appliences etc., complete and as directed by the departemental officers.

Painting two coats for Exterior surface with approved Exterior Plastic Emulsion paint approved quality and colour over a priming coat, including thorough scrapping, clean removal of dirt, etc complete and including necessary plaster of paris, putty, wherever required etc, complete as per standard specification.

Painting two coats with Ready Mixed Enamel Paint over the old iron works of approved quality and colour without priming coat including the cost all materials etc.,complete, in all floors.

Painting two coats with Ready Mixed Enamel Paint over the new iron works of approved quality and colour without priming coat including the cost all materials etc.,complete, in all floors.

Wiring with 2x1.5sq.mm. PVC insulated SC unsheathed FRLS copper conductor of 1100V grade in suitable PVCrigid pipe on wall and ceiling with PVC accessories and with TW switch box and 5AFT switch with painting of suitable colour for open PVC light point / fan point (for electronic regulator) (6 points per coil) (S.D.20)

Supply and fixing of WT bulk head fitting with guard suitable with 7W / 9W LED bulb(SD 84)

Wiring with 2 x1.5 sq.mm. PVC insulated single core unsheathed FRLS copper conductor of 1100 V grade in suitable PVC Rigid pipe on wall and ceiling with PVC accessories with suitable Module Plastic surface mounting switch box on wall with 1 no. 6A one way module switch and 1 no. 6A 3/2 pin module socket with module front plate with painting of Suitable colour with continuous earth wire connection of 1.5 sq.mm copper wire for Open PVC conduit Plug point ( 8 points / Coil) Higher End. (SD-305)

Supply, Delivery and fixing of Indoor type Air conditioner 1.5 tonne including all charges etccomplete.

supply and fixing of 1200mm (48") sweep AC ceiling fan complete ( Higher end) with 2 module 100W fan step regulator (Higher end) with 1 metre down rod with fan clamp with side plates and cross arm of size 450mm (18"). (SD-458)

RAMAKRISHNAN (BID ID -1360248)