Providing storm water drain, parents waiting shed, RO shed and other works for the work of Construction of Model School building at Tiruvannamalai in Tiruvannamalai District.

Amount

Earth work open excavation in 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 excavated earth with a lead of 10 mts. within the compound in places shown by the departmental officers and clearing and levelling the site, etc., complete complying with standard specification. Mechanical Means

Supplying and filling in foundation, basement, etc with filling 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.

Cement Concrete 1:5:10 (One Cement, Five crushed stone sand and Ten hard broken stone jelly) using 40 mm gauge hard broken granite stone jelly for foundation including dewatering wherever necessary and laid in layers of not more than 15 cm thick well rammed, consolidated and including curing etc. complete complying with standard specification and as directed by the departmental officers. -Mixing by manual means

Brick work in Cement Mortar 1:5 (One Cement and Five Crushed Stone Sand) using best quality Burnt Clay Brick of size 9” x 4 3/8” x 2 3/4” with class 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.

For Foundation and Basement

For Superstructure in Ground Floor

For Superstructure in Third Floor

Supplying and erecting steel centering including necessary supports For plane surfaces such as rectangular 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).

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).

Supplying and erecting steel centering including necessary supports for plane surfaces for Reinforced Cement Concrete works such as vertical slab, side slabs of boxing, vertical drops, facia, vertical wall, etc. using mild steel sheets of size 1200cm x 60cm and 10 BG stiffened with welded mild steel angles of size 40mm x 40mm x 5 mm for boarding, laid with silver oak joists of size 10cm x 5cm & 7.5cm x 5cm as support runner, Top Horizontal stiffener spaced at about 60cm to 90cm centre to centre or at suitable intervals. MS Channel Section (ISMC 100) shall be provided as a vertical support @1.20m C/C and with Lateral support of Steel Adjustable Telescopic Props of Size 2m x 2m (expandable upto 3.60m) & steel pipes of 20mm dia @ required level/spacing etc. complete complying with standard specifcation and as directed by the departmental officers. (Payment for centering shall be given after the concrete is laid)

Providing and laying in position, standardised concrete Mix M-20 Grade by 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).

For Foundation and Basement

Manufacturing, supplying and fixing Precast Reinforced Cement Concrete slabs of following thickness in RCC 1:2:4 (one cement, two crushed stone sand and four aggregates), using following HBGS jelly excluding cost of reinforcement steel in position but including cost of moulding charges, casting of slab, finishing, curing and fixing in position in all floors etc., complete complying with standard specification and as directed.

Supplying, fabricating and placing in position Mild Steel / Ribbed Tor Steel reinforcement grills of all variety like HYSD/CTD/TMTand all grade like Fe 500, Fe550D, Fe 500 D etc., for all RCC works as per design given including cost of steel reinforcement and G.I. binding wire, wastage etc. complete complying with standard specification and as directed by the departmental officers.(Contractor has to make his own arrangements for the supply of steel reinforcement and binding wire)

Paving pre-polished concrete anti-skid step tiles (Required shape and design) of 20mm thick of approved quality and colour laid in accordance with IS 1443 in Cement Mortar 1:3 (One Cement and Three crushed stone sand), with required Cement Slurry and Mortar Plasticizer, 20mm thick and pointed with white cement mixed with colouring pigment at the rate of 0.40 Kg. / sq.m., 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)

Supplying and fixing of M.S.grill of approved design for grill gate, grill work to doors and windows openings ramp etc., using necessary mild steel flats for inner and outer members which should be fixed on edges including priming coat of best approved quality red oxide primer etc., complete complying with standard specification.

Supplying fixing and errecting of steel roof trusses and roof truss purlins fixing for PPGL sheet roofing using MS. square tube of size 50x50x4.50 mm raffter, Tie angles and MS square tube of size 50x50x4.50mm for sturts and MS plat of size 12 mm thick for fixing PPGL sheet. The purlins using MS square tube of size 38x38x4.05 mm shall be properly anchored to the supporting super structure and fixed in concrete at wall and spacing of purlins are to be arranged to use the standard size or sheet and spacing should not execeed 1680 mm and free over hang at eves should not be more than 400 mm, the cleats shall be wellded to the trusses firmly and fixed on the down stream side of purlins. The ridge purlins fixed at 77 to 115 mm away the apex of the roof. The trusses shall have welded joints only at all guessets plate junctions except gussets at bottom chords to have bolts and nuts to permit transportation of trusses as directed. The foundation anchor bolts of trusses will be fixed in concrete at wall in bed blocks and well cured, labour for erection of trusses of approved quality transportation, priming coat for all members, cutting, bending, and welding etc., The trusses should be connected at bottom 1 / 3 part by steel tie angles and with top and bottom wind bracings as per design given. The chord of the trusses of bottom channel should suitablely cambered. The truss and purlins should be given priming coat of Rex Oxide primer of approved quality including labour for erection, transportation, wellding etc., complete complying with standard specification.

Supplying and fixing by drilling holes and not by punching for roofing with pre painted Galvalum sheet of 0.47 mm thick of best approved quality with required size with curved shape and white ridge sheet with necessary bolts and nuts bitumen washers. including cutting the sheet to the required size found necessary during execution etc., complete complying with standard specifications [ The sheet should be got approved by the Executive Engineer before use on work]

Plastering with Cement Mortar 1:5 (One cement and Five Plastering sand), 12mm thick in all floors including mortar plasticizer at 200ml per 50Kg of cement used, curing etc. complete complying with standard specification and as directed by the departmental officers.

Plastering with Cement Mortar 1:3 (One cement and Three Plastering sand), 20mm thick in all floors including mortar plasticizer at 200ml per 50Kg of cement used, curing etc. complete complying with standard specification and as directed by the departmental officers.

Painting two coats of newly plastered wall surface with ready mixed Plastic emulsion paint of first class quality and of approved colour over a priming coat including thorough scrapping, clean removal of dirt, and including necessary plaster of paris putty, wherever required etc., complete complying with standard specification and as directed by the departmental officers.

Painting two coats of newly plastered wall surface with ready mixed Plastic Exterior emulsion paint of first class quality and of approved colour over a priming coat including thorough scrapping, clean removal of dirt, and including necessary plaster of paris putty, wherever required etc., complete complying with standard specification and as directed by the departmental officers.

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 and as directed by the departmental officers. (The make, quality and colour of paint should be got approved by the Executive Engineer before use on works.)

Supply and fixing of the Readymade three-seater granite sitting bench to the following specifications: length of the sitting bench is 1.50m x 0.45m x 0.075m, 2 Nos of Pillar is 0.45m x 0.90m x 0.13m. The rate incidental charges and transportation to the site of work etc., Complete Complying with standard specification as directed by the departmental officers. (Excluding cost GST)

Supply and Erect tensile membrane structure for Open to Sky and Bus Shelter as per the Specification and Design below. 1)Steel: Steel design, fabricated and supplied and erected as per the analysis wing NDN design software with minimum thickness of 3.20mm thickness and approx tonnage of 1.20 to 2.50 Kg Wt/Sq.ft varying as per the design shown in the drawings the steel to be of ISI approved make and has to fabricated and supplied with one coat of Epoxy primer to site. The lugs / cleats and base plates to be prefabricated and to comply as per design standards of Reports. The steel to be designed for a wind speed of 55m/sec as per the IS code. The steal to be finished with two coats of Epoxy white roller finish at site. 2)Fabric: The fabric has to be PVC fabric with cross link of Tx-30 with a life expectancy & 5 Years and has to be patterned as per NDN software and has to be welded and high frequency machine with a minimum weld width of 40mm. The fabric to be fixed with necessary Aluminum extrusion of minimum 3.20 to 4.00mm thickness flats or special extrusion. The fabric fixed should be made in such a way sufficient stiffness is there in the fabric.

Skirting the wall with fine polished granite stone slabs best quality to the size and variety in cement mortar 1:2 in all floors etc., complete complying with standard specifications and as directed by the departmental officers

Supplying and fixing of cubicle partition walls, with cubicle sizes as per measurements and the required colour of 12mm compact laminate HPL boards. The door size is 600mm x 1785mm, and the panel width is 1700mm. The overall height is 1995mm (including 150mm ground clearance), with the following accessories: Stainless steel (Grade-316) and aluminium, SS gravity hinges, SS adjustable legs, SS coat hooks, SS door knobs, aluminium U-channels, SS locksets with indicators, anodized aluminium top rails, aluminium door stopper channels, screws (SS Grade-304) and wall plugs, and noise-deafening tapes for grooves in doors and pilasters. The work shall be complete and as directed by the departmental officers.(Suitable for Toilet Portion)

Supplying and Fixing of Brass Letters of approved size and colour. The colour treatment process is achieved with MRF colour coat and then the processed coloured layer is set into the kiln for the heat treatment process for the following sizes

English Brass letters - 25 cm

Tamil Brass letters - 20 cm

Emblem

Supplying, laying and jointing 300mm dia RCC Hume Pipe of approved quality with spigot and socket ends and fixing them in dry condition using spun yarn and cement including petty masonry shoring and strutting wherever found necessary and laying the pipe line in the alignment at the specified gradient and testing with necessary tools and plants, etc., and re-filling the trench with excavated earth and levelling the ground etc., complete complying with standard specifications. (Earth work excavation, re-filling with excavated earth will be measured and paid separately).

M. Ramajayam (BID ID -1558430)

B. Nowsath (BID ID -1558413)