Corporation Of Chennai Tender

Supplying, fabricating and placing in position Ribbed tor steel (RTS) for all RCC works as per design given including cost of steel and GI binding wire (18 G) in all floors etc., complete complying with standard specification (contractor has to make his own arrangements for the supply of steel and binding wire)

Supplying and erecting shuttering including necessary supports for plane surface in foundation and basement for RCC column footings pintol blocks plinth beam staircase steps critical steps critical piers etc. using mild steel sheets of size 90x60cm and 10 gauge stiffened with welded mild steel angles of size25x25x3mm for boarding laid over silver Oak (country wood) joistsof size 10x6.5cm spaced at about 90cm centre to centre and supported by casuarina props of 10 to 13cm dia spaced at 75cmcentre to centre etc. complete..

Supplying and erecting centering for sides and soffits including supports and structting upto 3m high for plane surfaces such as RCC coloumns top and bottom slabs of boxing. sill labs sunshades etc. with necessary facia using mild steel sheets ofsize 90x60cm and 10 gauge stiffened with welded mild steelangles of size 25x25x3mm for boarding laid over silverOak(country wood) joists of size 10x6.5cm spaced at about 90cm centre to centre and supported by casuarina props of 10 to 13cm dia spaced at 75cm centre to centre etc. complete.

Supplying and erecting centering for sides and soffits including supports and strutting upto 3m high for plane surface such as RCCslab rectangular beams TEESupplying and erecting centering for sides and soffits including supports and strutting upto 3m high for plane surface such as RCCslab rectangular beams TEE or L beams lintels bedblocks staircase waists and landing slabs landing beams canopy etc. with all cross bracings using mild steel sheets of a size 90x60cm and 10 gauge stiffended with welded mild steel angles of size 25x25x3mm for boarding laid over silver Oak(Country wood) joists of size 10x6.5cm spaced at about 90cm centre to centre and supported by casuarina props of 10 to 13cm dia spaced at 75cm centre to centre etc. complete.

Providing and laying in position ,Standardised Concrete Mix M- 25 Grade in accordance with IS :456-2000,using 20mm and down graded hard broken granite stone jelly for all RCC items of works with minimum cement content of 350 kg/m3 and m,aximum water cement ration of 0.50, including admixture (Plasticiser/Superplasticier) in recommended proportions as per IS:9103 to accelerate ,retard setting of concrete,improve workability without impairing strength and durability with about (5.0 cum) 7730 kg of 20 mm machine crushed stone jelly and with about (3.3 cum) 5156 kg of 10-12mm machine crushed stone jelly and with about (4.79 cum) 7670 kg of sand, nut excluding cost of reinforcement grill and fabricating charges,centering and shuttering and also including laying,vibrating with mechanical vibrators,finishing,curing,etc and providing complying with standard specification and as directed by the departmental officers. The coarse and fine aggregates to be used should comply with the requirements of IS Standrands.(No separate payment will be made by the Department for the excess usage of materials)

Supplying and filling with earth up to 10 Km. for foundation and basement,etc.,including watering and consolidating,etc.,complete

Brick work using best quality II class table moulded chamber burnt bricks of size 9" X 4-3/8" X 2-3/4" in cement mortor 1:3 for foundation and basement including curing etc complete complying with standard specification

Plastering with cement mortar 1:3 (1 cement and 3 river sand) 12mm thick including curing etc. complete.

Plastering with cement mortar 1:4 (1 cement and 4 river sand)12mm thick including curing etc. complete.

White washing two coats over new plastered surface..

Painting the new plastered walls with two coats of Exterior emulsion paint (weather proof ) first class quality and of approved colour over a priming coat including thorough scrapping clean removal of dirt etc. complete and including necessary plaster paris putty etc. wherever required.as per (ISI STD) (It must provide excellent resistance against the growth of algae and fungi on the walls. And it must offer excellent protection against alkali and UV degradation and the durability period should be 5 years..

Supplying and fixing M.S.Grill gate of required size in twoshutters with necessary iron members gun metal cups and wheels75mm dia. with fittings locking arrangements etc. complete including painting a priming coat of approvedprimer etc. complete (The design of gate furnished is subject toalteration during execution.).

Solid panel PVC door with frame Solid PVC door shutters using 19 gauge 19mm MS sq..tubes for styles and outer frames. 15mm MS sq.tubes for top lock and bottom rails. The steel tubes shall be covered with 5 mm thick solid PVC sheets. Shutter using 5mm thick solid PVC sheet for panelling shall rigidly fixed in position including necessary furniture and fittings. The over all size of styles shall be 50mmx30mm. The over all size of top rail lock rail and bottom rail shall be 75mm x 30 mm. The over all size of frames shall be 50mmx45mm with suitable rabate for housing the shutter.including labour charges etc. complete.as per ISI standard.

UPVC Ventilator Specification: Supplying and fixing UPVC (Un- Plasticized Polyvinyl Chloride) louvered Ventilators of from the profile the size of outer frame 60mm x 58mm and shutter profile size of 60 x 78mm both profiles are reinforced 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 corners and joints should be welded and cleaned. Radiations pin headed glass 4mm thick should be provided in the louvers. The window should be fixed to the wall with 100% packing with screws and silicon packing all round the frames. The ventilator should be got approved from the Executive Engineer before use on work.

UPVC Window Specification: 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.

Painting new iron work two coats with ready mixed paint with relevent ISI STD of superior quality and approved colour..

Terrace concrete work with broken brick jelly 20mm gauge in pure slacked lime 32:12.5(32 broken brick jelly 20mm gauge and12.5 lime) over RCC roof slab for required depth of 80mm for giving required slope and thickness to roof as required well beaten with wooden beaters etc. complete as directed during execution..

Terrace waterproofing a. Surface Preparation - Cleaning the surface properly and attending the cracks on surface wherever required with polymer modified mortar in CM 1:4 admixed with SBR Latex or equivalent at 2 kg per bag of cement. Prepond water test to be done for 48 hours to check for any leakage and if required pressure grouting to be done to arrest leakage. b. Treatment of pipe outlet/drain using twin sided adhesive tape to the Periphery of the Pipe Outlet and filling the same with expansive cementitious grout/ micro concrete. a. c. Providing and applying one coat of PU Primer /Moisture Insensitive Epoxy primer @ 5 - 6 Sqm/kg shall be applied on the entire surface, Followed by Providing and applying " Solvent based, liquid applied, high permanently elastic, single component, elastomeric, seamless, moisture curing, waterproof membrane, applied in 2 coats with roller / airless spray, at a total consumption of minimum 2 - 2.20 kg/ Sqm, to achieve an avg.system DFT of 1.50 mm, having the following properties 1.Elongation at break - 400% as per ASTM D 412 / DIN 52455 2.Tensile strength of 2.00Mpa as per ASTM D 412 / DIN52455 3.Adhesion to concrete surface over 2.0 N/mm2 as per ASTMD7234 4.Shore A Hardness of 75 as per ASTM D 2240 (15”) 5.Fire resistance EURO Class-F 6.Resistant to plant roots as per EN 13948 7. Service temperature range of -40deg C to 80deg C 8. Solids content of around 90% as per ASTM C836, to be applied by brush/roller over the applied by brush/roller over the RCC slab. Further post ponding water test is done for 48 hours to check for water tightness. d. Supply and spreading of 150 GSM non - woven Geotextile with proper overlaps e. All around on the roof, at the parapet wall junction, an angular fillet of 75 mm X 75 mm shall be made in cement-sand mortar in 1:3 proportion admixed with SBR Latex or equivalent at 1 Liter/bag of cement

Terrace flooring with one course of pressed tiles (with relevent ISI STD) 23cmx23cmx20mm using C.M. 1:3 etc. .

Pointing with cement mortar 1:3 to full depth 6mm thick of tiles 23cmx23cmx20mm etc. .

Supplying and paving second quality colour glazed tiles 30x20cm x 6 mm with relevent ISI STD size of approved make set in C.M. 1:3 (1 cement and 3 river sand) 20mm thick and pointing with same colour cement polishing clearing etc. complete..

Providing and laying first quality plain ceramic tiles of all colours of size 305mmx305mmx6mm set in C.M.1:3 12mm thick including pointing with white cement labour materials etc. (Relevant ISI.std).

Supplying and fixing fully polished cuddapah slab 50mm thick over the existing RCC slab including pointing with C.M.1:3 ( 1 cement and 3 river sand) etc. complete..

STEEL DOOR Fabricating Supply and fixing and position of MS doors with single leave. The door outer frame will be 40x40x6mm MS angle, the shutter frame will be 35x35x6 mm, MS angle intermediate stiffner will be 35x35x6 mm with cross stiffner 25x 25x5 mm flats covered with 18 gauge M.S. sheet with necessary hinges, tower bolts, aldrop length 30mm and hold fast etc., complete with one coat red oxide primer.

Providing and fixing 75mm dia Nahini trap (floor trap) with brassgratings.

Supplying and fixing in position best Indian type water closet 51cm of superior quality and approved make white glazed earthernware with P or S trap and a pair of porcelin footrest and forming flooring alround water closet using 40mm size broken brick jelly concrete in C.C1:4:10(1 cement 4 river sand and 10broken brick jelly) and sand filling around the closet including finishing the surface with C.M.1:3 ( 1 cement and 3 river sand) 20mm thick including making good all the disturbed portions etc. complete.

Supplying and fixing white glazed earthern ware wash basin of size 55x40cm of approved make with a pair of G.I.brackets 15mm diaC.P.Pillar tap 32mm C.P.waste fittings with rubber plugs andC.P.chain 32mm 75cm long P.V.C.waste pipe with necessary union solder joint 90cm long with 15mm lead and brass connections with brass nuts and 15mm dia G.M.wheel valve and giving necessary connection etc. complete including cost of white lead teakwood plug screws rubber washers including painting two coats of approved make and colour paint over etc. complete. (wash basin should be got approved by the Buildings Engineer before use onworks).

Stainless Steel Handrail 900mm high Providing and fixing stainless steel handrail 900mm high (as shownin drawing) made out of stainless steel conforming to SS 304 with 8pct.to8.5pct. nickel using 50.8mm outer dia at top (with 1.6mm wall thickness) and 38.10mm(1.6mm wall thickness ) stainless steel pipe placed vertically at 1m centre to centre and two horizontal SS pipe 25.40mm outer dia (with 1.2mm wall thickness) welded at a distance of 300mm using TIG welding process with 308L SS electrode (in station building all flooor staircases) with necessary bends, flanges and base plates. Rate is inclusive of all materials, labours, lead, lift,etc. as directed by Engineer in-charge.

Supplying 50mm size six lever type (brass) lock of superior make(Godrej or Tiger) with relevent ISI STD keys in duplicate..

Providing and laying first quality of double charged vetrified tiles of all colours of size 600mmx600mmx8mm set in cm 1:3, 12mm thick including pointing with white cement, labour materials, etc(Relevent ISI STD)

Paving the steps with CEMENT CONCRETE STEP TILES hydraulically pressed Anti skid steps tiles of 20mm thick in C.M.1:3, including pointing with colour cement etc, complet ( I.S.I std)

Supplying and fixing P.V.C. pipe 110mm dia rain water down fallpipe as per ISI standard (I.S.4985)including P.V.C.Bends withoutdoor arrangements shoes gratings with F.I.Clamps 40mmx20mm ofsuitable size fixed to wooden kplugs embeded in walls in cementmortar 1:3 (1 cement and 3 river sand including cutting holes inwalls and making good the same after fixing the plugs etc.complete as directed during execution..

Supplying and fixing of Frame fabrication with 1"x1" MS square tube with reflective and digital printing on 1mm GI sheets fitted with suitable aluminium beadings on four sides and painted etc., complete as per colour specifications instructed by Corporation officials.

Extra lift charges for brickworks those in ground floor(i.e. 1m above ground level)

Extra lift charges for brickworks those in first floor.

Extra lift charges forconcrete work in ground floor(i.e 1m high above ground level.)

Supplying and fixing P.V.C. screw down tap of size 20mm dia.

Supplying and fixing 25mm C.P flush cock.

Cost of supply of 20w 4 feet LED fitting with LED tube complete set (Patty and LED tube)

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

Wiring with 2 x 1.5 sq.mm. PVC insulated SC unsheathed FRLS copper conductor of 1100V grade in suitable PVC rigid pipe concealed in wall and ceiling with PVC accessories in flush with wall with 3mm thick hylum sheet cover with TW switch box and 5A FT switch with continuous earth wire connection of 1.5 sq.mm copper wire for making good of the concealed portion with suitable colour for PVC concealed light point / fan point (for electronic regulator)

Supply and fixng of TNEB meter board suitable for 3 phase 63A service connection made up of suitable angle iron frame work of size 2 feet x 1-1/2 feet using angle iron of size 1-1/2" x 1-1/2" x 1/4" rigidly fixed on wall covered with hylem sheet of size 2 feet x 1/2 feet of 6mm thickness with necessary bolts and nuts supports and supply and fixing of 3 Nos. 63A fuse units (500V), 1 No. neutral link, copper earth flat of size 1" x 1/4" with inter connection of EB meter to fuse units by 16 Sq.mm PVC insulated copper wire with 1 No 63 Amp 30 MA Four Pole RCD / RCCB (Lower End) with suitable necessary connection with earth connection complete

Supply and run of 2 of 4 sq.mm. PVC insulated SC unsheathed FRLS copper conductor of 1100V grade in suitable PVC rigid pipe concealed in wall and ceiling with continuous earth wire connection of 4 sq.mm copper wire and making good of the concealed portion with suitable colour

I.SI.MARKED 3 1/2X25 SQ.MM CABLE

Wiring with 2 x 4 sq.mm. PVC insulated single core unsheathed FRLS copper conductor of 1100 V grade in suitable PVC rigid pipe on wall and ceiling and switch drop portion PVC rigid pipe concealed in wall with PVC accessories with suitable Module GI switch box on wall with 1 no. 16A one way module switch and 1 no. 16A 3/2 pin module socket with module front plate with painting of Suitable colour with continuous earth wire connection of 4 sq.mm copper wire for Open PVC pipe power Plug point ( 8 points / Coil)

Earthing as per the ISI specification with an earth electrode of 2.10 metre Class B GI pipe of dia not less than 40mm with copper earth plate of size 125mm x 50mm x 6mm with necessary funneling arrangements with necessary masonry work and with 38mm RCC cover slab for the brick masonry

Supplying of 3 phase EB connection

Supplying & Erection of inscription stone (Kalvert)