tender for construction of 30000 litre capacity over head tank1 nosworks under j.j.mfund 2023-24- nilakkottaiblock - tn-05-01nlk. ; 2 earthworkexcavation and depositing on bank with an initial lead of 10m and lift of 2m in the following classification of soils as directed by twad board officers. hard stiff clay, block cotton, hard red earth shales, murram, ordinary gravel, stoney eart i st depth 3 earthworkexcavation and depositing on bank with an initial lead of 10m and lift of 2m in the following classification of soils as directed by twad board officers. hard stiff clay, block cotton, hard red earth shales, murram, ordinary gravel, stoney eartii nd depth 4 supplying and filling in foundation, basement, etc with filling m.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. 5 cement concrete 1:4:8 ( one cement, four m.sand and eight 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 complying with standard specification 6 r. 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 7 for items 1.5m to 4.5m below gl 8 for items 0 to 1.50m below gl 9 for items 0m to 4.5m above gl 10 for items 4.51m to 7.32m above gl 11 for items 7.32m to 10.98m above gl 12 for items 10.98m to 14.64m above gl 13 for items above 14.64m & up to 18.30m from gl 14 supplying and erecting centering for sides and soffits including necessary supports and strutting upto 3.29 m height for plane surfaces as detailed below in all floors with all cross bracings using mild steel sheets of size 90 x 60 cm and 10 bg stiffened with welded mild steel angle of size 25mm x 25mm x 3 mm for boarding laid over silver oak joists of size 10cm x 6.50 cm spaced at abote 90 cm centre to centre and supported by casurina props of 10cm to 13 cm dia spaced at not more than 75 cm centre to centre etc. complete complying with the standard specificaiton. ( payment for centering shall be given after the concrete is laid ) 15 plane surfaces 16 below g.l. 17 above g.l. to 3.30m 18 5.30m . to 6.30m 19 8.30m . to 9.30m 20 11.31m to 12.30m 21 curved surface 22 0 to 3.30mfrom floor level 23 square column 24 below g.l. 25 ground level to 3.30 m 26 square column 27 3.31 to 4.30m 28 4.31 to 5.30m 29 5.31 to 6.30m 30 6.31 to 7.30m 31 7.31 to 8.30m 32 8.31 to 9.30m 33 9.31 to 10.30m 34 10.31 to 11.30m 35 11.31 to 12.30m 36 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. 37 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 ) 38 fabricatfabrication, supply, delivery and fixing of outside ms ladder of 45cm wide made out fabrication, supply, delivery and fixing of outside ms ladder of 45cm wide made out of 50x50x6mm ms angle for sides and steps in 16mm ms plain rods fixed at 30cm c 39 providing and fixing of rcc inner access ladder in rcc 1:1.5:3 ( one cement, one and half sane! and three aggregates ) using 20mm hbg stone for oht including cost of reinforcement, placing grill in position, centering shuttering charges, mixing concrete cu 40 providing pvc ventilating arrangements mosquito proof nylon net with 110 mm pvc pipes and cowl and as directed by twad board officers 41 providing cut stone slab in cm 1:3 and as directed by twad board officers 42 refilling the foundation with excavated earth including consolidation as directed by the twad board officers.as per item l ( a ) + l ( b ) less item 2, 3 & 4a & 4b total 43 provision for pipe connection arrangements for inlet, outlet scour and overflow etc. including cost of pipes, specials, valve, labour charge for lifting, aligning, cutting, threading, fixing and painting of gi pipes with two coats of approved quality enamel paint etc., complete and as directed by twad board officers 44 65 mm dia gi pipe inlet connection 45 65 mm dia gi pipe for overflow &rain water harvesting pipe 46 50 mm dia gi pipe for scour pipe 47 65 mm dia gi pipe for delivery pipe 48 65 mm dia gi tee 49 65 mm dia gi 90 bend 50 65 mm dia gicoupler 51 65 mm dia gi union 52 65 mm dia gielbow 53 65x 50 mm dia gireducer ( heavy ) 54 65 mm diagm gate valve 55 50 mm diagm gate valve 56 manhole cover 60 x 60 cm ( heavy duty ) with frame 57 supplying, delivary , laying jointing and testing of 63mm dia pvc pipes and specials for conveying main and branch pumping main including earthwork, refilling etc., complete as per standard specification etc., complete - for inlet and delivary line 58 supply of 63mm dia pvc pipe 4 kg / sq.cm 59 supply of 63mm dia pvc coupler 60 supply of 63mm dia pvc elbow 61 supply of 63mm dia pvc tee 62 supply of 63mm dia pvc mta 63 50 mm dia gi pipe for delivary line 64 50mm gi elbow 65 50mm dia gi coupler 66 provision for housefhold connection with accessories 67 63mm x 20mm saddle piece 68 pvc female threaded adapter for 20mm 69 g.m ferrule 70 pvc female threaded adapter for 20mm 71 flow control valve ( local rate ) 72 20mm gi union 73 brass chromium plated screw down tap 15 / 12 mm dia ( heavy type ) 74 20mm dia pvc items finolex ( or ) equivalent ( with isi monogram ) 75 earth work excavation and depositing on bank with initial lead of 10 m and lift of 2 m in narrow trenches having bed width 1.25m & below for laying of pipes for water supply and sewerage works in the following type of soils as directed by departmental officers ( 0.60 m width x 1.05 mdepth ) ( measurement as per surveying data with reference to drawings ) 76 provsion for name board. 77 gst amount for providing service to government contract works for the above construction works. { gst amount is the total gst amount for total overall quoted amount above this row in column bb for all works in this package }