Construction of 30000 Litre OHT Tank at Vallinayagipuram Village in Varathampatti Panchayat

Construction of 30000 Litre OHT Tank at Vallinayagipuram Village in Varathampatti Panchayat

Earthwork excavation 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. A.Hard stiff clay black cotton, hard red earth, shales, murr

a) First depth of 2m

b) Second depth of 1m

Sand filling with m-sand including cost of sand watering, ramming and consolidation etc complete as directed by officers.

Cement concrete 1:4:8 ( One of cement, four of sand and eight aggregates) using 40mm HBGS for leveling course including the cost of mixing, curing etc., complete as directed by officers.

RCC 1:1.5:3 (One cement, one and half sand and three aggregates) using 20mm HBGS excluding cost of reinforcement, centering, shuttering strutting, but including cost of mixing concrete, placing, vibrating with mechanical vibrator, finishing, curing etc., complete as directed by TWAD Board officers.

For items 1.5m to 4.5m Below GL

0m to 1.5m Below G.L.

0m to 4.50m Above GL

4.51m to 7.32m from GL

7.33m to 10.98m from GL

10.99m to14.64m from GL

14.64m ht., to 18.30m ht.,

Supplying and erecting stee centering for sides and soffits including necessary supports and shuttering to the required height for RCC items using MS angles of size 25mm×25mm×3mm of boarding, laid oversilver oak joints of size 10cm × 6.5cm speced as 90cm centre to centre and supported by casurina props of 10cm to 13cm dia spaced at 75cm centre to centre complying with standard specifications etc., completed and as directed by officers.

A) Plane surface

Below G.L.

0m - 3.30m Above GL

B)Curved surface

C)Square columns

Below GL

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

Supplying fabricating and placing in position of HSD steel rods for reinforcement including the cost of steel and binding wire etc., complete and as directed by officers.

Fabrication, supply, delivery and fixing of outside MS ladder wide 45cm made out of 50×50×6mm MS angle for sides and steps in 16mm 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 for providing access to roof top of OHT of suitable inclined length, including bottom anchorage and transportation and as directed by officers.The rates includes concrete Bed block in in CC 1:2:4 using 20mm HBGS at Top and bottom of suitable size with necessory anchor bolts.

Providng manhole cover of size 0.60 x 0.60M in RCC inner 1:1.5:3 with suitable reinforcement and 50x50x6mm MS angle fixed along edges and as directed by officers.

Provision for pipe connection arrangements for lnlet, outlrt, 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 as detailed below.65mm Φ GI pipes

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}