ARIYAPPAMPALAYAM TP - OHT TANK

Amount

Earth work excavating and depositing on bank with initial lead of 10m & initial lift of 2m in Hand Stiff clay, Stiff black cotton, hard red earth, shales, murram, gravel, stone earth mixed with small size boulders SS.20B etc, complete as per Standard specification. First depth of 2 mt

Pipe line

Supplying and filling in foundation and basement with Crushed Stone Sand (M- Sand) in layers of not more than 15cm thick well rammed watered and compacted etc., complete complying with standard specification.

Plain Cement Concrete 1:4:8 (One cement Four M.sand and eight aggregate) using 40mm gauge hard broken granite jelly for foundation including cost and conveyance of all materials including labour charge for mixing laying curing, watering if found necessary and laid in layers and not more than 30 cm thick etc., as per standard specification.

Providing and laying in position Standardised Concrete Mix M-20 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 contenet of 325Kg/ cum and maximum water cement ratio of 0.55 including admixture (Plasticiser / super plasticiser) in recommended proportions as per IS 9103 to accelerate, related setting of concrete, improve workability without imparing strength and durability with about (5.0cum), 7730Kg of 20mm machine crushed stone jelly and with about (3.3 cum), 5156kg of 10 - 12mm machine crushed stone jelly and with about (4.79cum) 7670 kg of Crushed Stone Sand (M- Sand), but 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 without claiming extra cost etc., complete complying with standard specification and as directed by the departmental officers - 1.5m to 4.5m below G.L.

For items 0m to 1.50m below G.L.

For item 0m to 4.5m from GL

For item 4.5m to 7.32m from G.L.

For items 7.32m to 10.98m from G.L.

Supplying and erecting steel centering for sides and soffits including necessary supports and shuttering to the required height for RCC items using MS sheets or suitable size of BG.10 stiffened with welded MS angles of size 25mm x 25mm x 3mm of boarding, laid over silver oak joints of size 10cm x 6.5cm spaced at 90cm centre to centre and supported by casuarinas props of 10cm to 13cm dia spaced at 75cm centre to centre complying with standard specifications etc., completed. -Plane Surfaces : -Plane Surfaces Below GL

GL to 3.30m above GL

From 3.30m to 4.30m height

From 6.30m to 7.30m height

Curved surface -0 to 3.30mt height

6.31 to 7.30mt height

7.31 to 8.30mt height

Square columns : -Below G.L.

Supllying fabricating and placing in poition of TMT steel rods for reinforcement including the cost of steel and binding wire etc. complete.

Plastering with cement mortar 1:3 mix to10mm thick including cost and conveyance of all materials to site including curing etc.,complete as per standardspecification

Exterier plastic emulsion painting two coats with approved emultion paint including cost and conveyance of all materials to site and all labour charges etc complete.

Fabrication, supply, delivery and fixing of outside MS ladder made with a width of 45cm to the following length made out of 50 x 50x6mm MS angle for sides and steps in 6mm MS plain rods fixed at 30cm centre to centre welded, jointed etc., providing with suitable side supports, clamps, and locking arrangements provided with one coat of red oxide paint to MS ladder for 10000lit. capacity QHT inclined lengthy, including bottom anchorage and transportation and as directed by Departmental Officers.

Providing and fixing of RCC inner access ladder with RCC 1:1½ :3 using 20mm HBG stone for OHT including casting of reinforcement, placing grill in positional, centering shuttering charges, mixing concrete curing etc., to required height and clear width of 45cm consisting of two nos. of vertical pot of 10cm x 15cm and step slab of 25mm x 25mm etc., complete

Supply and delivery of manhole cover of size 60cm x 60cm (heavy duty) with frame

Refilliing the trench with excavated earth other than sand including cost and conveyance of all other labour and material charges to site etc., complete complying with standard specifications.

Supply of PVC PIPE 6 Kg/cm2 including all cost and conveyance. -63 mm p.v.c pipe (2") 6kg/cm2

80 mm dia GI pipe B class

50mm dia GI pipe B class

Labour charges for PVC&GI pipe laying and jointing in proper position including of all labour charges etc complete.

P.GOPALAKRISHNAN (BID ID -1259220)