Construction of 30000 ltr OHT at Ward No.1 Ellappanayakanvalasu in Kolathupalayam Town Panchayat General Fund 2023-2024

Amount

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, murram, ordinary gravel, stoney earth and earth mixed with small size boulders for foundation SS 20B

a) First depth of 2m

b) Second depth of 1m

Sand filling with well gravel 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 to 14.64m from GL

14.65m to 15.30m from GL

Supplying and erecting steel 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 with approved cement paint over one coat of priming coat over cement plastered exposed surface of the Reservoir including cleaning, preparing the surface and curing etc., complete and as directed by officers.

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.

Providng and fixing of RCC inner access ladder in RCC 1:1.5:3 (One cement, one and half sand and three aggregates) using 20mm HBG stone for OHT including cost of reinforcement, placing grill in position, centering, shuttering charges, mixing concrete curing etc., to required height and clear width of 45cm consisting of two Nos. of vertical post of 10cm× 15cm and step slab of 25mm × 25mm etc., complete and as directed by officers.

Providing PVC ventilating arrangements mosquito proof nylon net with 110mm PVC cowl and as directed by officers.

Providing cut stone slab in CM 1:3 and as directed by officers.

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.

Painting Name board emblem on the SR with enamel paint as per board's specification 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

Fabrication, supply, delivery and fixing of outside MS Ladder of 45cm clear wide made out of 50 mm x 50mm x 6mm MS angle for both sides and for steps at 30cm C/C welded jointed etc ., for I staging from GL to 1st level brace (weight 4.5kg/m) IInd and IIIrd staging upto floor slab and IVth staging from floor slab to roof top. Supply, delivery and fixing of 32 mm GI pipes medium for hand rails from I stage to IVth stage. RCC M30 Grade mix for Landing slab 5 nos. at Ground Level- 1No. and above Ground Level - 4Nos. Supply and fixing of 32mm GI pipe medium for hand rails for the Landing slab. Supplying and fixing of MS Base plate of 100mm X 100mm X 6mm thick for fixing Anchore fastener bolt for fixing of hand rails at Landing slab and MS Ladder providing locking arrangements with two coats of approved enamel paint over one coat of red oxide paint as per approved Type Design and as directed by TWAD board officers

Supply and Delivery of 63 mm PVC pipes using 6 kg/cm2 including cost and conveyance of all materials to site.

Lowering PVC rigid pipes and specials to trench and laying to proper gradient and alignment jointing with PVC couplers with cement paste and testing to the required pressure including conveyance of water for filling during testing etc., complete complying with standard specification.

Refilling with excavated excess earth work including all labour charges etc., complete complying with standard specification.

RNK CONSTRUCTION CO