Tender For Civil Works - Construction Of 4 Class Room Building, Toilet Block 2Nosin Government High School At Poovalambedu In Tiruvallur District.; 1 Earth work excavation for foundationby Mechanical means for Isolated & Combined Footing etcin all soils and sub-soils and to full depth as may be directed except in rock requiring blasting inclusive of shoring shuttering, bailing out water wherever necessary and depositing the surplus earth within the compound in places shown by the departmental officers with an initial lead of 100 mts and clearing and levelling including dressing of sides and raming of bottoms etc., complete complying with standard specification and as directedbythedepartmental officers.- Upto 2.40m Footing Depth. Data worked out for 48 m3 per day/8 hrs. 2 Supplying and filling in foundation, basement, etc with crushed stone sand in layers of not more than 15 cm thick well watered, rammed and consolidated etc. complete complying with standard specification and as directed by the departmental officers. 3 Supplyingandfillinginfoundation, basement,etcwithconveyed earthinlayers ofnotmorethan 150mmthicklayers well watered, rammed with surface vibrator and consolidated including conveyance charges etc. complete complying with standard specification and as directedbythedepartmental officers. 4 Supplying and filling in foundation, basement, etc with crushed stone dust in layers of not more than 15 cm thick well watered, rammed and consolidated etc. complete complying with standard specification and as directed by the departmental officers. 5 Cement Concrete 1:5:10 (One Cement, Five sand and Ten hard broken stone jelly) using 40 mm gauge hard broken granite stone jelly for foundationincluding dewatering wherever necessary and laid in layers of not more than 15 cm thick well rammed, consolidated and curing etc. complete 6 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, Sill slabs 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 with silver oakjoists of size 10cm x 5cm& 7.5cm x 5cm as support runner, vertical stiffener, side support and Top Horizontal stiffener spaced at about 60cm to 90cm 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). 7 Supplying and erecting centering for plane surfaces such as RCC Floor/Roof Beam, Lintels, Cantilever Beams, Bed Blocks etc.. with necessary supports and strutting upto 3.60m height in all floors with all cross bracings using MS Sheets made of 10 gauge thick welded with MS angle of Size 25mm x 25mm x 3mm for boarding laid over Steel adjustable Span of Size 2m x 2m(expandable upto 3.60m) and Silver Oak Joists of Size 10 x 5 cm spaced at 50cm to 60cm c/c and supported by Steel Adjustable Telescopic Props of Size 2m x 2m (expandable upto 3.60m) made with outer steel pipe with dia 50mm (3.60mm thick) and inner steel pipe with dia 40mm (2.90mm thick) Spaced at not more than 50 to 60cm c/c, etc complete complying with standard specifications. Steel adjustable span and Steel Adjustable telescopic props shall be provided as directed by the departmental Officers. (Payment for centering shall be given after the concrete is laid). 8 Supplying and erecting centering for plane surfaces such as RCC Floor Slab, Roof Slab, Loft, Landing Slabs, etc with necessary supports and strutting upto 3.60m height in all floors with all cross bracings using MS Sheets made of 10 gauge thick welded with MS angle of Size 25mm x 25mm x 3mm for boarding laid over steel adjustable span of size 2m x 2m (expandable upto 3.60m) and supported by Steel Adjustable Telescopic Props of Size 2m x 2m (expandable upto 3.60m) made with outer steel pipe with dia 50mm (3.60mm thick) and inner steel pipe with dia 40mm (2.90mm thick) , etc complete complying with standard specifications. Steel adjustable span and Steel Adjustable telescopic props shall be provided as directed by the departmental Officers.(Payment for centering shall be given after the concrete is laid). 9 Supplying and erecting steel centering including necessary supportsFor plane surfaces such asrectangular or square RCC columns etc. which require only nominal strutting using mild steel sheets made of 10 gauge thick welded with MS angle size 40mm x 40mm x 5 mm and supported by Steel Adjustable Telescopic Props of Size 2m x 2m (expandable upto 3.60m) made with outer steel pipe with dia 50mm (3.60mm thick) and inner steel pipe with dia 40mm (2.90mm thick).etc..complete in all floors complying with standard specifcation. Steel Adjustable telescopic props shall be provided as directed by the departmental Officers. (Payment for centering shall be given after the concrete is laid). 10 Providing and laying in position, standardised concrete Mix M-20 Gradeby insitu machine mix concrete adopting weighing batch method in accordance with IS 456 using 20mm and down graded hard broken granite stone jelly for all RCC items of works with minimum cement content of 325 kg/m3 and maximum water cement ratio of 0.55, including admixture (plasticiser / super plasticiser) in recommended proportions as per IS:9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability with about (5 cu.m.) 7730 kg. of 20mm machine crushed stone jelly and with about (3.3 cu.m.) 5156 kg. of 10-12mm machine crushed stone jelly and with about (4.79 cu.m) 7670 kg. of crushed stone sand, but excluding cost of reinforcement grill and fabricating charges, centering and shuttering and also including laying, vibrating with mechanical vibrators, finishing, curing, etc. and providing fixtures like fan clamps in the RCC floor/ roof slabs wherever necessary without claiming extra, etc., complete 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 standards. (No separate payment will be made by the Department for the excess usage of materials). 11 For Foundation and basement: 12 For Superstructure in G.floor 13 For Superstructure in F.floor 14 d)For Superstructure in S.floor 15 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) 16 Foundation and basement 17 Ground floor 18 First floor 19 d)For Superstructure in S.floor 20 Brick work in following Cement Mortar using 1:5 ratio best quality Burnt Clay Brick of size9 x 4 3/8 x 2 3/4 withclass designation of 7.5 conforming to IS 1077-1992 for foundation and basement including Cost of Mortar Plasticizer curing, etc.,complete complying with standard specification and as directed by the departmental officers. Brickwork shall be done as per IS 2212-1991 adopting English Bond generally other type of bond shall be done as directed by the Executive Engineer in charge. 21 a)For Foundation and basement: 22 Brick work in following Cement Mortar 1:6 using best quality Fly ash Brick of size230x110x70mm withclass designation of 7.5 conforming to IS 13757-1993 or IS 12894-2002 for foundation and basement including Cost of Mortar Plasticizer, curing, etc., complete complying with standard specification and as directed by the departmental officers. Brickwork shall be done as per IS 2212-1991 adopting English Bond generally. other type of bond shall be done as directed by the Executive Engineer in charge. 23 For Superstructure in GF 24 For Superstructure in FF 25 For Superstructure in SF 26 Brick partition walls of 11.50cm thickness usingbest quality Fly ash Brick of size 230x110x70mm withclass designation of 7.5 conforming to IS 13757-1993 or IS 12894-2002 in Cement Mortar 1:3 (One Cement and Three CS Sand) using hoop iron reinforcement if found necessary including Cost of Mortar Plasticizer, curing etc. complete complying with standard specification and as directed by the departmental officers. (Hoop iron reinforcement will be measured and paid for separately) 27 7cm thick: Ground floor 28 First floor 29 Plastering with Combination mortar 1:1:6, 20mm thick in all floors etc., complete complying with standard specification and as directed by the departmental officers. 30 Paving the floor with best approved quality fine polished Kota stone slabs of size 600 x 600 of 18 / 20mm with machine cut edges and matching marble slab not less than 100mm width other than Adanga Marbles as border laid over a cement mortar bed of 20mm thick using cement mortar 1:3 (One cement and three sand) fixing the slabs in true right angles with minimum possible width of joints and pointing the joints with white cement mixed with mathcing colouring pigments and polishing with floor polisher to a high degree of finish 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. 31 Plastering with Cement Mortar 1:5 (One Cement and five Sand) 12mm thick including finsihing, curing, etc., complete in all floors complying with standard specification and as directed. 32 Supplying and applying of two coats of putty of 3mm thick over the exposed RCC surface of ceiling including finishing the joints smoothly 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 (water proof 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 (water proof abrasive sheet), cost of putty blade, labour charges for grinding the joints and sand papering, two coats of putty, scrapping the putty area to level the surface smooth, etc.,complete. The putty should be got approved by the Executive Engineer before use on work. 33 Special ceiling plastering and finishing the exposed surface of all RCC items of work such as slabs, beams, sunshades, facia, canopy slab, staircase waist slab, landing slab etc., with Cement Mortar 1:3 (One Cement and Three Sand) 10mm thick including hacking the surfaces, providing cement mortar nosing, beading for sunshades, staircases, steps, landing slabs and curing, etc., in all floors complying with standard specification and as directed by the departmental officers 34 Supply and Installation of Steel Chalk writing Board made by AALIANCEN.V.EUROPE, Belgium, On steel core the long lasting porcelain is fused at temperatures upto 800C. With this process a scratch and stain resistant surface is created and becomes smooth and erasing free of Ghost Lines Virually maintenance free this Chalk board never acquired. chalking in and total cleaning is accomplished with clear water the writing surface will not crack peel even when solvents are used to remove crayon, Paint or other forign substances. Highly versatile, the entire writing area can become a display board with the help of magnetic buttons. 35 Supplying and fixing in position best approved of BIS quality PVC rain water down fall pipes having a pressure of 4 kg. / sq.cm including cost of necessry PVC shoe, PVC bend, cast iron gratings of required diameter and special clamps, brass screws, nails, etc., and fixing of cast iron gratings at junction of parapet and the RCC roof slab including finishing neatly etc., complete. The rate shall be inclusive of cast of removable cast iron grating. The PVC pipe shall be fixed in wall with special type of U clamp at the centre of the pipe line in addition to those for more than 3.0 metre pipe length, etc., complete complying with standard specification.a).110mm dia 36 Ground floor 37 First floor 38 Supplying and fixing fine polished cuddapah slab of following thickness for cup-board arrangements including laying to correct alignment with necessary cement mortar and black powder etc, complete complying with standard specification and as directed. 40mm thick 39 Supplying and fixing of M.S. grill of approved design for open courtyard, grill, grill work to doors and window openings etc., using necessary mild steel flats for inner and outer members which should be fixed on edges including cutting the members, welding, grinding, one coat of priming coat using best approved quality red oxide primer, dismantling of walls /concrete if necessary, fixing and finishing the dismantled portion to original condition etc., complete complying with standard specification. 40 Fabrication, supplying and fixing of Steel door made out of 40 x 40 x 6mm M.S angle section for outer frame and shutter made out of 35 x 35 x 5mm M.S angle section with necessary stiffner 32 x 6 mm flats not exceeding at 30cm intervals and necessary cross diagonal M.S flat of size 32 x 6mm.A tie bar of 32 x 6mm M.S flat is used in bottom of frame in order to avoid twisting of door frame.The shutter frame shall be fully covered by 18 gauge C.R.CA sheet and provided. A tiebar isprovided at the bottom of the outer frame toprrevent twisting of frame during transportationand fixing.All members should be given one costof materials labour charges and all incidentialcharges and fixing charges. 41 a)Single leaf 42 b)Double leaves 43 Manufacturing, Supplying and fixing in position of Steel Windows with the following specifications.Outer frames of Windows made of Z section F7D of size 33 x 25 x 3mm at 1.419 kg / m and mullion J Section (F4B) of size 46 x 25 x 3mm at 2.28 kg/m and shutter section of made of F7D of 33 x 25 x 3mm at 1.419 kg / m as specified in IS 7452 / 1990.Each openable shutter should not exceed a width of 600mm to enable separate operations and easy maintenance.The panel of the shutters to be covered with 18 gauge cold rolled sheet of superior quality and welded intact with shutter frames.Horizontal stiffeners using 18 x 5mm MS Flat at 0.70 kg/m at 3 Nos. for each shutter and additional diagonal stiffeners of the same MS Flats at all the four corners of each shutters to the suitable length welded to the shutters, for holding the CR Sheets in position firmly.2 Numbers of sturdy hinges and one number of handle-cum-latch of special type made with 18 x 5mm MS Flats are revetted to the shutters at an appropriate height in Window. 44 a)Three leaves: 45 Manufacturing,supplying and fixing mild steel emergency door of size 1.20mx2.10m made out of MS angle of size 40x40x6mm@3.50 kg/m for outer frame and MS angle of size 35x35x5mm@2.60 kg/m for shutter frame to be provided for a height of 0.80 m from bottom. The bottom portion of 0.80x1.20m is to be provided with two openable shutters using 18 gauge CR sheets of best quality. These shutter panels should be stiffenend using MS flats of 18X5mm diagonally. One aldrop is provided at the centre. The top portion of size 1.30X1.20m is provided with two openable shutters using 18 gauge CR sheets with suitable diagonal stiffeners of MS flat of size 18X5mm. Two numbers of strudy hinges and one number of handle cum latch of special type made with 18X5mm MS flats are rivetted to the shutter an appropriate height of window.4 Nos.of hold fasts of 120mm length spliced at the ends are welded to the outer frame of the Window by using MS Flat of 18 x 5mm at 0.70 kg/m welded to the shutter at two place equivalent from each other from top and bottom of the shutter. An MS square bar of 12mm size is welded to the inner face of the Window at an equal interval not exceeding 100mm edge to edge between them.All members are painted with one coat of anti-corrosive red oxide primer as directed by the departmental officersThe rate including cost of materials, labour, transportation to the site etc., complete 46 Supplying and fixing in position steel balustrades using 20mm square rods spaced at 150mm centre to centre so that the two balustrades in each step shall be placed centrally and the top of balustrades connected with the hand rails (cost of hand rail shall be measured and paid separately) by means of MS flats of size 40mm x 6mm in the groove 40mm x 6mm provided at the bottom of hand rail; the bottom of balustrades shall be fixed on to the top of step concrete. An additional MS flat of size 50mm x 6mm shall be provided at the centre of balustrades connecting all square rods to the entire length including cost of square rods, flat and applying one coat of red oxide primer to the iron surfaces, etc., complete complying with standard specification and as directed by the departmental officers. 47 White washing two coats with freshly burnt white shell lime in all floors including cost of lime, blue powder fevicol type gum, brushes, scaffolding charges, etc., complete complying with standard specification and as directed. 48 Supplying and painting the walls with two coats of Interior emulsion paintas instructed by the departmental officers including preparation of surface curing, etc., complete in all floors complying with standard specifications (The colour and shade of the cement paint shall be got approved by the Executive Engineer before use of work). 49 Supplying and painting the walls with two coats of Exterior emulsion paint over one coat of cement primer as instructed by the departmental officers including preparation of surface curing, etc., complete in all floors complying with standard specifications (The colour and shade of the cement paint shall be got approved by the Executive Engineer before use of work). 50 Manufacturing, supplying and fixing in positon of RCC Jally of 5cm thick in cement concrete 1:2:4 using 20mm machine crushed stone jelly (excluding cost of reinforcement steel) including cost of mould, finishing, curing, lifting, fixing in position etc., complete complying with standard specification and as directed by the departmental officers. 51 Painting new iron works such as steel doors, windows, ventilators, window bars, balustrades etc., with two coats of best approved first quality and colour of synthetic enamel paint over the existing red oxide priming coat in all floors excluding cost of priming coat etc., complete complying with standard specification. 52 Solid PVC door shutters using 19 Gauge 19mm MS square tubes for styles and outer frames.15mm MS square tubes for top, lock and bottom rails.The steel tubes shall be covered with 5mm thick solid PVC sheets.Shutter using 5mm thick solid PVC sheets for panelling shall rigidly fixed in position including necessary furniture and fittings. The over all size of styles shall be 50mm x 30mm.The over all size of top rail,Lock rail and bottom rail shall be 75mm x 30mm. The over all size of frames shall be 50mm x 45mm, with suitable rabate for housing the shutter. 53 Supplying and fixing of PVC Sliding Door with Roller 54 Flooring with ceramic tiles of following size and varietyconforming to IS 15622laid over cement mortar bed of 20 mm thick in cement mortar 1:3 (One Cement and Three crushed stone Sand) with required Cement Slurry and Mortar Plasticizer including cutting the tiles to the required size with special cutter wherever necessary, laying in position and pointing with Water Resistant Tile Epoxy Grout at the rate of 0.27 Kg. / sq.m. etc., complete complying with standard specification and as directed by the departmental officers.(The make and brand of the tiles should be got approved by Executive Engineer before use on works) 55 Dadooing walls with following best approved quality, white / colour glazed tiles conforming to IS 15622 of following sizes in Cement Mortar 1:2 (One Cement and Two crushed stone sand),10 thickwith Mortar Plasticizer and pointing the joints with Water Resistant Tile Epoxy Groutat the rate of 0.27 Kg. / sq.m. neatly in all floors, curing, etc., complete complying with standard specification and as directed by the departmental officers.(The make and brand of the tiles should be got approved by Executive Engineer before use on works) 56 Dadooing with printed design colour glazed tiles of size 300mm x 200mm x 6mm 57 Supplying and fixing in positon Indian Water Closet (Oriya type) of size 580 x 440mm white glazed earthern ware of approved quality and brand with “P” or “S” trap conforming to BIS with crushed stone sandcushion and forming flooring alround the closet using 40mm broken brick jelly in lime concrete 1:2:5 (One lime, Two crushed stone sandand Five brick jelly) 100mm thick and finishing the top to the required slope and including giving necessary connection to PVC pipes (including the cost of 110mm dia PVC pipe for a length of 600mm) by dismantling brick masonry wall / reinforced cement concrete roof / floor slab and making good the dismantled portion to the original condition with leakages etc., complete complying with standard specifications and as directed by the departmental officers.(The water closet should be got approved by the Executive Engineer before use on works). 58 Supplying and fixing in position white / colour glazed European Water Closet of best quality and approved make with 100 mm “P” or “S” trap connecting with CI pipe of 100mm dia / PVC pipe of 110mm dia, double flapped rigid PVC black seat and seat cover with CP brass hinges including cost of white cement, cement for packing, spun yarn, teakwoodplugs,brassscrews,etc.,includingsupplyingandfixing10litrescapacity PVC / 12.5 litres capacity porcelin low level flushing tank with a pair of CI brackets, etc., complete with all fittings such as 15mm brass ball valve with polythene float with brass handle, union, coupling connected by means of 40mm white PVC flush hand using Indian adopter joint including all internal fittings such as 15mm brass connections, 15mm GM wheel valve, 15mm brass nipple (2 Nos.), 15mm nylon connection, TW plugs, screws and also giving necessary connection to the PVC pipe including cost of 600mm length of 110mm dia PVC pipe and painting the CI brackets with 2 coats of approved paint over one coat of red oxide primer, dismantling the masonry and re-doing the dismantled masonry to original condition etc. complete complying with standard specifications.(The EWC and flushing tank wiht all accessories should be got approved by the Executive Enginer before use on works) 59 Supplying and fixing in position best quality PVC soil / waste pipes of various dia having 6 kg / sq.cm. pressure BIS mark and providing leak proof joints using PVC adhesives including fixing to the wall with special PVC / MS clamp, teak wood plugs, brass screws, etc., and making connection to all sanitary fittings, dismantling masonry / RCC works whereverfoundnecessaryandmakingthegooddismantledportiontotheoriginal condition,includingtestingforanyleakages,etc.,completecomplyingwithstandard specifications.(The PVC pipes should be got approved by the Executive Engineer before use on works). The rate for earth work excavation will be measured and paid separately in the cases where the pipe lines are proposed to laid below ground level 60 110 mm dia 61 Supplying and fixing in position PVC specials of the following dia and types of approved quality confirming to BIS and providing leak proof joints including fixing to the walls and giving connection to the PVC soil stacks, dismantling the masonry or RCC works and re- doing the dismantled portion to original condition etc., complete complying with standard specifications. (The PVC specials should be got approved by the Executive Engineer before use on works). 62 Plain bend110mm dia. 63 Door bend110mm dia. 64 Tee110mm dia. 65 Supplying and fixing in position 15mm dia brass CP screw down tap / Pillar tap (heavy duty) of approved make conforming to BIS specifications and quality including cost of shellac, thread, etc., complete complying with standard specification and including 66 Supplying, fixing of cylindrical vertical notational polythene water storage tank of 1000 litres capacity confirming to I S. 12701 / 96. the tank is meant for outer (or) indoor, use complete withremovable hinged top locking arrangements and to make provision to fix with simply pipe lines necessary manhole with cover and including all PVC specials, plugs, screws, nails to fix the tanketc., and the tank should be fixed firmly as directed.The rate shall inclusive of all materials labour, conveyance, hoistings and fixing charges etc.,(The water tank should be got approved by the Executive Engineer before use on works by the dept., Officers. 67 Supplying and fixing in position Indian make white glazed earthenware squating type urinal of best quality and approved make including dismantling masonry, if necessary andre-doingthesametooriginal condition, etc., completecomplyingwithstandard specification. (The squatting urinal should be got approved by the Executive Engineer before use on works). 68 Supply and fixing in position of best Indian make white / colour glazed earthernware lipped mouth flat back urinal of best quality and approved make of size 430mm x 260mm x 350mm with GI pipe, 32mm dia bell mouth PVC connection and waste pipe, 15mm dia GI pipe of required length, 15mm dia GM wheel valve, 15mm dia brass nipple 2 Nos., and fixing the urinals in position with necessary TW plugs, clamps, screws, etc., includ- ing dismantling masnory and re-doing the same to the original condition, etc., including painting the pipe with two coats of best quality approved synthetic enamel paint over one coat of red oxide primer and checked without any leakage etc. complete complying with standard specifications and as directed by the departmental officers.(The urinal should be got approved by the Executive Engineer before use on works.) 69 Providing granolithic floor finish of the following thickness with plain cement concrete 1:2:4 (One Cement, Two sand and Four aggregate) using 10 to 12mm gauge hard broken stone jelly including laying, finishing and the top rubbed smooth with power trawl, thread lining, curing etc. complete complying with standard specification and as directed by the departmental officers. (The rate is inclusive of necessary planking for panellingwherever necessary and as directed by the departmental officers)
