Tender for RCC Over Head Tank 310 kl 18M staging under Mustafabad Ratanpur pumping water supply scheme

Amount

Design and construction of 310KL capacity, 18 m staging RCC intz type Over Head Tank with suitable foundation Considering Seismic forces, including supply of all materials, labour, T&P etc. as required for proper completion of work and submission of detailed design / drawings before starting of the work. (The bearing capacity of soil is 8.0 T/Sqm. at 2.50m depth from firm GL). The earthquake resistant design must be in conformity with IS:456, IS:1893, IS:13932 & IS:13920 (latest versions). RCC work for water retaining portion should be not less than M 300 (design mix) and CEMENT OPC 43 grade, STEEL TMT Fe 500 like SAIL, RINL, TATA and Specials labour and T&P etc. (All materials used by the contractor should be ISI marked) Steel . along with the following items:-

One meter wide RCC two columns stair case as an access to the top dome of the tank from ground level.

75 cm wide balcony around the tank at middle ring beam level

Fixing of inlet, outlet, washing and over flow pipes and their sluice valves, duck foot bends etc. from 150mm to 300mm dia including all materials, necessarily required for jointing and erecting. The limits of pipe fixing shall be from dome of the tank to one meter outside the apron of the tank. Overflow pipe shall be vertical type at required position or otherwise specified. Also, construction of inlet, outlet & washout/over flow chambers and their RCC covers as per departmental type design.

Clamping the vertical pipe with M.S. clamps of size 50x6mm at 1.50M C/C.

Filling the tank as many times as required with water and testing for water tightness and making it water tight, water for testing the tank shall be arranged by the contractor.

Painting the entire tank with three coats of (including base coat) exterior weather coat Apex or equivalent of Asian, Berger, Nerolac etc. of approved quality and shade as per direction of the Engineer-In-charge.

Painting the balcony and staircase railing and M.S. Manhole cover, ventilator angle iron posts with one coat of oxide primer and two coats of paint of approved quality (Asian, Berger, Nerolac etc.) and shade.

M.S. ladders 60 cm. From top dome to the inside of the tank up to bottom dome of 50 x 50 x 6 mm angle iron and 20 mm plain bars/rings at 20 cm. c/c/welded or riveted etc.

1.00 m dia ventilator of 50 x 50 x 6 mm angle iron fitted at the crown of top dome with fly and mosquito proof mesh over 25 mm sq. expanded metal jali of round mesh of size 3 mm.

600 mm x 600 m size M.S. manhole cover with locking arrangement fitted with 50 x 50 x 6mm angle iron embedded in the top dome at appropriate place. The thickness of cover of manhole shall not be less then 5 mm and shall be provided with over lap.

Three rows of G.I. Pipe medium quality ISI mark, railing with 50 x 50 x 6 mm angle iron post of clear height 1.25 meter at a distance of 1.00 m. center to center around the balcony, along the staircase and along the top dome of the tank.

Water level indicator as per direction of engineer I/C (confirming to latest IS code.)

Lightening conductor arrangements including earthing as per latest I.S. code.

Construction of 15 cm RCC drain all around apron/floor.

Filling the tank as many times required with water and testing the tank for water tightness and making it water tight.

Painting the entire tank with three coats of (including base coat) exterior weather coat Apex or equivalent of Asian, Berger, Nerolac etc. of approved quality and shade as per direction of the Engineer-In-charge.

Painting the outlet inlet, washout and over flow pipe with one coat of oxide primer and two coats of paint of approved quality (Asian, Berger, Nerolac etc.) and shade.

Painting with I.S.I. marked paint the balcony, staircase M.S. ladder top dome railing and M.S. manhole cover ventilation angle iron post with two coats of approved quality and shade over one coat of red oxide primer paint including all materials etc.

Filling of earth, ramming and watering the earth upto the plinth level which will be about 0.75m above from natural ground level for constructing floor & apron projecting one meter form the tank columns and drain outside. The apron shall be 25mm PCC 1:2:4 over 80mm thick PCC 1:3:6 at floor of the tank with suitable glass strips with brick masonary walls in 1:6 cement sand mortar required to raise ground level to plinth level including all materials etc.

Detail of column pipe including all materials etc. Inlet :- 150 mm DI D/F Outlet :- 200 mm DI D/F Overflow :- 200 mm DI D/F Washout :- 100 mm DI D/F Washout :- 80 mm GI

M.R.ENGINEERS AND CONTRACTORS

S. M. Construction

Ms Ankita Construction

M/s S.P. Agarwal and Co.