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| 1 | Earth work excavation for foundation 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 surplus earth within the compound in places shown by thedepartmental officers with an initial lead of 10 mts and initial lift of 2 mts. and clearing and levelling the site, etc., complete complying with standard specification. I depth of 2m |
| 2 | IIdepth of 1.35 m |
| 3 | Pipe Line |
| 4 | Collection supply and filling of M Sandof approved quarry including cost andConveyance of all materials to site and all labor charges for filling etc., Complete. |
| 5 | 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. For foundation |
| 6 | Providing and laying in position, Standardised Concrete Mix M-30 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 cementcontent of 400 kg/m3 and maximum water cement ratio of 0.45, including admixture (plasticiser / superplasticiser) in recommended proportions as per IS:9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability with about (5.0 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). (a) Below ground level Raft slab,Raft beam |
| 7 | up to GLcentral column, outter column, brace at GL |
| 8 | Above GL and upto 4.50m central column, outer column and brace |
| 9 | Above GL and upto 4.50m to 7.32mcentral column, outer column |
| 10 | Above GL 7.32m to 10.98m central column, outer column and brace |
| 11 | Above GL 10.98m to 16.64m central column, outer column column head, column drop, floor beam,floor slab, haunch, sidewall, column inside the reservoir, column head inside the tank. |
| 12 | side wall above 14.64m to 14.94 above GL. Column head inside the tank, column drop inside the tank,Roof slab. |
| 13 | Supplying and erecting centering to sides and soffits including supports and strutting with necessary cross bracing for plain surface such as RCC slabs rectangular beams all beams lintels etc., centering for soffits upto 3 meter height using mild steel sheet of size 90 cm x 60 cm x 10 mm gauge with MS angles of size 25mm x 25mm x 3mm laid over silver oak (CW) joists of size 10cm x 6cm spaced upto 90cm c/c and casurina props or 10 cm to 13 cm dia spaced at 0.750 cm c/c complying with standard specifications as per TNDSS NO : 30 & 86. Raft beam circumfrential sides (Plain) PLAIN SURFACE |
| 14 | Raft beam radial sides (Plain) |
| 15 | Braces below GL |
| 16 | For brace from 3.60m to 4.00m above GL |
| 17 | For brace from 7.40m to 7.80m above GL |
| 18 | For circumferential beam bottomfrom 11.35m to 11.58m above GL |
| 19 | column drop - sides from 11.48mto 11.58m above GL |
| 20 | Floor slab including wofking platform at 11.58m above GL |
| 21 | column drop - insidethe reservior - |
| 22 | Roof slab bottom portion - from om to 3.30m above floor slab |
| 23 | CIRCULAR COLUMNcentral column - Below GL and upto 3.30m above GL |
| 24 | central column from3.30mto 4.30m above GL |
| 25 | central column from4.30mto 5.30m above GL |
| 26 | central column from5.30mto 6.30m above GL |
| 27 | central column from6.30mto 7.30m above GL |
| 28 | central column from7.30mto 8.30m above GL |
| 29 | central column from8.30mto 9.30m above GL |
| 30 | central column from9.30mto 10.30m above GL |
| 31 | central column from10.30mto 10.93m above GL |
| 32 | column inside the reservior - From om to 3.30m abovefloor slab |
| 33 | SQUARE COLUMN Outer column - Below GL and upto 3.30m above GL |
| 34 | Outer column - from 3.30m to 4.30m above GL |
| 35 | Outer column - from 4.30m to 5.30m above GL |
| 36 | Outer column - from 5.30m to 6.30m above GL |
| 37 | Outer column - from 6.30m to 7.30m above GL |
| 38 | Outer column - from 7.30m to 8.30m above GL |
| 39 | Outer column - from 8.30m to 9.30m above GL |
| 40 | Outer column - from9.30m to 10.30m above GL |
| 41 | Outer column - from 10.30m to 11.30m above GL |
| 42 | Outer column - from 11.30m to 11.35m above GL |
| 43 | CURVED SURFACE For circumferential beam side from 11.35m to 11.58m above GL |
| 44 | Column head -from 10.93m to 11.48m above GL |
| 45 | Floor slab sides at working platfrom level from 11.58m above GL |
| 46 | Side wall outer side - From 0.27m to 3.22 m feight from working platform |
| 47 | For column head inside the reservoir - from 0m to 3.30m above floor slab |
| 48 | Roof slabsides -from 0m to 3.30m above floor slab |
| 49 | RTS rods Supplying , fabricating & placing in position of rods for reinforcement |
| 50 | Cement paint Two coats with good quality of approved cement paint( Exterior Emulsion) including cost of all materials to site and all labour charges for mixing applying and also including the cost of Scaffoding arrangmentand proper curring etc., Complete as per Standard Specificationsfor 10 sqm (for New Walls) |
| 51 | Providing Steelstair casefrom ground level to top of Roof slab of service Reservoir |
| 52 | Supplying and fixing RCC 1:11/2:3 (one cement, one and half sand and three course aggregate) using 20mm size hard granite broken stone (machine crushed )for inside access ladder of 0.60m wide with steps at 30cms intervals from roof slab to floor slab |
| 53 | Supplying and fixing RCC Manhole frame and cover of size 0.60x0.60 on directed by TWAD Board officers. The manhole frame and cover should be of light duty and conforming to IS 1726/1974 |
| 54 | Supplying and fixing RCC Ventilator 40cm din |
| 55 | Supplying and fixing of cutstone of size 0.45x0.45x0.15m set in CM 1:3 (one cement and three sand) below the inlet pipe in the SR as per Standard specification |
| 56 | Supply and delivery of pipes and pipes specials including all charges etc., 100mm GI pipe |
| 57 | 110mm 6KSC PVC Pipe |
| 58 | 90mm HDPE Pipe |
| 59 | 100mm Gate valvue |
| 60 | 100mm GI Bend |
| 61 | 100m m GI TEE |
| 62 | Flange Ste 100mm Dia |
| 63 | Scheme Name board |
| 64 | Supplying and fixing of Handrails in R.C.C. 1:11/2:3 |
| 65 | Water Level Indicator |
| 66 | Supply & Delivery of scour valve for 100mm size as per the specification |
| 67 | Lowering HDPE pipes and specials to trench and laying to proper grade and alignmentand as directed by the TWAD Officers |
| 68 | Refilling gallery trench and filter basins with clean excavated sand free from silt and clay |
