Working Estimate for Providing Sewage Treatment Plant arrangements in Construction of Government Law college at Karaikudi in Sivagangai District

Amount

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 the departmental 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.

Supplying and filling in foundation, basement, etc with filling sand in layers of not more than 15 cm thick well watered, rammed and consolidated etc. complete complying with standard specification and as directed by the departmental officers.

Cement Concrete 1:5:10 (One Cement, Five sand and Ten hard broken stone jelly) using 40 mm gauge hard broken granite stone jelly for foundation including dewatering wherever necessary and laid in layers of not more than 15 cm thick well rammed, consolidated and curing etc. complete complying with standard specification

Supplying and erecting centering for sides and soffits including necessary supports and strutting upto 3.29 M height for plane surfaces as detailed below in all floors with all cross bracings using Mild Steel sheets of size 90 x 60 cm and 10 BG stiffened with welded Mild Steel angle of size 25mm x 25mm x 3 mm for boarding laid over silver oak joists of size 10cm x 6.50 cm spaced at abote 90 cm centre to centre and supported by casuarinas props of 10cm to 13 cm dia spaced at not more than 75 cm centre to centre etc. complete complying with the standard specification. (Payment for centering shall be given after the concrete is laid)

For plane surfaces such as RCC floor slab, roof slab, beams, lintels, bed blocks, landing slab, waist slab, and beams, etc.

For plane surfaces such as vertical slab, side slabs of boxing, vertical drops, facia, vertical wall, etc.

Supplying, fabricating and placing in position Mild Steel / Ribbed Tor Steel grills for all RCC works as per design given including cost of steel and G.I. binding wire in all floors etc. complete complying with standard specification. (Contractor has to make his own arrangements for the supply of steel and binding wire)

Providing and laying in position, standardised concrete Mix M-20 Grade in accordance with IS 456 using 20mm and down graded hard broken granite stone jelly for all RCC items of works with minimum cement content of 325 kg/m3 and maximum water cement ratio of 0.55, including admixture (plasticiser / super plasticiser) in recommended proportions as per IS:9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability with about (5 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).

for foundation & basement

Ground floor

Brick work in Cement Mortar 1:5, using best quality Fly ash bricks of size 23x11x7cm for foundation and basement including curing etc.,complete complying with standard specification. Ground Floor

Supplying and fixing UPVC (Un-Plasticized Polyvinyl Chloride) Windows of casement type (open) from the profile the size of outer frame 60mm x 58mm and shutter profile are reinforcement with GI/1mm 125GSM and 100% corrosion free, the profiles are multi chambered sections with wall thick of 2mm. The EPDM rubber (black colour) covered with over all the edges of frame and shutter the shutter will be provided with Espag multi power point locks and also it operates as handle. The corners and joints should be welded and cleaned. Radiations free pin headed plain or brown colour glass 4mm thick should be provided to the shutter and it should not allow leakage of water even at most ranging storms and should have key lockable action, security protective hinges, strong locking systems and as per size for arresting noise and energy loss. The connecting mechanism between sash and outer frame that enables opening of the window. The window should be fixed to the wall with 100% packing with screws and silicon packing all round the frames. The window should be got approved from the Executive Engineer before use on work

Supplying and fixing MS Grill for Doors, Windows and Ventilators using required MS angles, flats etc. complete

Plastering with Cement Mortar 1:5 (One cement and Five Plastering sand), 12mm thick in all floors including curing etc. complete complying with standard specification and as directed by the departmental officers.

Special ceiling plastering and finishing the exposed surface of all RCC items of work such as slabs, beams, sunshades, facia, canopy slab, staircase waist slab, landing slab etc., with Cement Mortar 1:3 (One Cement and Three Plastering Sand) 10mm thick including hacking the surfaces, providing cement mortar nosing, beading for sunshades, staircases, steps, landing slabs and curing, etc., in all floors complying with standard specification and as directed by the departmental officers

Plain Cement Concrete 1:2:4 (one cement, two crushed stone sand and four hard broken stone jelly) using 20mm jelly for wearing coat including laying, compacting, finishing and curing, etc., complete as per standard specificatins and as directed by the departmental officers.

Paving the Top of roof with Solar reflective ceramic tiles of size 305 x 305 x 7mm thick of approved quality and colour laid in Cement mortar 1:3 (One cement and three crushed stone sand) 12mm thick and pointed with tile grout (Nitotile Grout or equivalent) and cement in the ratio of 1:3 for joint, curing etc., complete complying with standard specification and as directed by the departmental officers. (The make and brand of the tiles should be got approved by the Executive Engineer before use on works)

Manufacturing supplying and fixing of steel door with the following specification MS angels of size 40x40x6mm are used for the outer frames and M.S. angles of size 35x35x5mm for the shutter frames stiffeners with 32 x 6mm M.S flat is provided at required intervals in the shutter frame. 18-gauge C.R. sheet laid as panel in the shutter and welded intact. M.S. flat 18x5mm is welded over the 32 x 6mm M.S. flat sandwitching the C.R. sheet in between additional stiffeners with 18x5mm M.S. flat is provided diagonally at the rear side of the shutter, 3nos. of hinges in case of single leaf and 6nos. of hinges in double leaves shutter to be provided 6nos. of holdfasts 120 mm in length made of angle section spliced at the ends are welded to the outer frames of the door. Tower bolts 2nos. one at the top and the other at the bottom are provided 1no. Aldrop is provided incase of double leaf door at lock rail section in the door in single leaf door, one more aldrop is provided in the inner lock rail section of the door One rotaing locking arrangements for the inner side of the door and additional provision for locking arrangements for lock is provided on the rear side of the door at an appropriate place. Incase of double leaf door M.S.Flat 32 x 3mm at 1.1Kg/m is provided on the one shutter t conceal the gap between the two shutters.at an appropriate place in the door. A tie bar is provided at the bottom of the frame to prevent twisting of frame during transportation and fixing. All members are given a coat of red oxide primer as directed by the departmental officers. The rate includes cost of all materials, labour charges, transportation to site of work, loading, un loading and all other incidental charges etc., complete.

Painting two coats of newly plastered wall surface with ready mixed plastic interior emulsion paint of first class quality and of approved colour over a priming coat including thorough scrapping, clean removal of dirt, and including necessary plaster of paris putty, wherever required etc., complete complying with standard specification.

Painting two coats of newly plastered wall surface with ready mixed plastic Exterior emulsion paint of first class quality and of approved colour over a priming coat including thorough scrapping, clean removal of dirt, and including necessary plaster of paris putty, wherever required etc., complete complying with standard specification.

Painting new iron works such as steel doors, windows, ventilators, window bars, balustrades etc., with two coats of best approved first quality and colour of synthetic enamel paint over the existing red oxide priming coat in all floors excluding cost of priming coat etc., complete complying with standard specification. (The make, quality and colour of paint should be got approved by the Executive Engineer before use on works.)

Supplying and fixing in position best approved of BIS quality PVC rain water down fall pipes having a pressure of 4 kg. / sq.cm including cost of necessry PVC shoe, PVC bend, cast iron gratings of required diameter and special clamps, brass screws, nails, etc., and fixing of cast iron gratings at junction of parapet and the RCC roof slab including finishing neatly etc., complete. The rate shall be inclusive of cast of removable cast iron grating. The PVC pipe shall be fixed in wall with special type of "U" clamp at the centre of the pipe line in addition to those for more than 3.0 metre pipe length, etc., complete complying with standard specification. 110mm dia PVC Pipe

Supplying and fixing in position CI manhole covers with CI frames (Heavy duty) of size 60cm x 60cm of best approved quality as per standard specification etc., complete complying with standard specifications

Design Fabrication, Supply and erection of bar screen made of MS 10mm square bars to suit the channel. Inner size of channel 1000mm , wide 900mm liquid depth and 1200mm length. The MS 10mm square bars should be properly epoxy coated to avoid the rusting of bars. The spacing between the square bar is 5mm, so that the particles above 5mm will be retained in the entry channel and will be cleared by hand rac manually. The bar screen should be kept at an inclination of 60o. The bar screen is fixed at site, inside the channel with a groove like arrangements, so that bar screen could be removed for maintenance purpose. The cost includes cost of MS bars, fabrication charges, Epoxy painting charges and fixing at site transport charges to site., etc., complete.

Design Supply and erection of Tube Settler feed pump with motor with the capacity of 2.5m3 /hr as per the design. The type of the pump is submersible sewage disposer 1 H.P , Non clog. The pump make is kirloskar/CRI/equivalent, The capacity of the motor is 1.0HP. The type of the motor is TEFC, IP55, CLSS-B insulation, suitable for 3 phase supply, 440V, 50HZ .Motor make is Kirloskar/CRI/ Equivalent. Necessary base frame, foundation bolts nuts are provided to fix the coupled pump set above the foundation bed. The cost includes the pump, motor, Stand by pump and motor, base frame, foundation bolts, labour charges, erection charges, transport charges etc.,

Design Supply and erection of Coagulant dosing pump with the capacity of of 0-6 liters per hour @ 4 kg/cm2, 0.16 HP with electronic driven construction of pump is Polypropylene . The pump is fitted Base frame necessary bolts and nut . The capacity of the tank 100 liters with HDFE. The pump is fitted with a suction and delivery line. Necessary foot valve, level indicator is provided with the pump. Including the suitable Agitator for dosing pump The cost includes the cost of the pump, tank, foot valves, delivery and suction tubes of standard length, Agitator, labour charges, transport charges, erection charges etc., complete.

Design Supply and erection of Flocculent dosing pump with the capacity of 0-6 liters per hour @ 4 kg/cm2, 0.16 HP with electronic driven construction of pump is Polypropylene . The pump is fitted Base frame necessary bolts and nut . The capacity of the tank 100 liters in HDPE. The pump is fitted with a suction and delivery line. Necessary foot valve, level indicator is provided with the pump. Including the suitable Agitator for dosing pump The cost includes the cost of the pump, tank, foot valves, delivery and suction tubes of standard length, Agitator, labour charges, transport charges, erection charges etc., complete.

Design Supply and erection of air blowers Ring Blower with electrical Motor, 16 m3/hr, 0.5 HP motor . Air blower with motor are provided for one number for operational and one number for standby. The Air blower make is of Raico/Equivalent to suit the design requirements. The Air blower with motor is fixed in a base frame. Necessary foundation bolts, nuts are provided to fix the total coupled assembly of Air blower and motor in the concrete bed. The cost includes the cost of Air blower, base frame , diffusers, foundation bolts, erection charges, transport charges, labour charges., etc., complete.

Design, Fabrication, supply, erection of tube settler media with PVC 1000mm depth 1.1 mm thickness in hexagonal chevron shaped fixed with 60 degree slope in tube settler tank (1 m3) including the cost of tube settler media, erection charges , transport charges, labour charges.etc., complete

Design Supply and erection of Sand Filter feed pump with motor with the capacity of 2.5 m3 as per the design. The type of the pump is horizontal, Centrifugal, flexible coupling drive arrangement. The pump make is kirloskar/CRI/equivalent, The capacity of the motor is 2 HP. The motor type suitable for 3 phase supply, 440v, 50hz . Motor make is Kirloskar/CRI/Equivalent. Necessary base frame, foundation bolts nuts are provided to fix the coupled pump set above the foundation bed. The cost includes the pump, motor, Stand by pump and motor, base frame, Motor Guards, foundation bolts, labour charges, erection charges, transport charges etc., complete.

Design Supply and erection of Oxidant dosing pump with the capacity of of 0-6 liters per hour @ 4 kg/cm2, 0.16 HP with electronic driven construction of pump is Polypropylene. The pump is fitted Base frame necessary bolts and nut . The pump is fitted with a suction and delivery line. Necessary foot valve, level indicator is provided with the pump. Including the suitable Agitator for dosing pump The cost includes the cost of the pump, tank, foot valves, delivery and suction tubes of standard length, Agitator, labour charges, transport charges, erection charges etc., complete.

Design Supply, fabrication and erection of Multi graded Sand filter unit with 530 mm dia and 1570 mm height. Multi graded Sand filter is a vertical, cylindrical vessel made out of FRP The inlet pipe inside the vessel is designed to have a bell mouth arrangements for liquid/water distribution, so that the filter media is in position & will not get disturbed. The bottom collection system is provided with header and lateral pipe arrangements with necessary holes. The filtered water is collected this header lateral pipes, will flow out to outlet pipes and vice versa. The filter media consists of Multi graded sand filled over & under bed media of pebbles and gravels. The size and height of the filter media is as per the design and standards. The joints are properly vessel (Multi graded Sand Filter ) is supported by FRP legs, thereby fixing the vessel with foundation bolts properly in the concrete foundation bed. The cost includes the cost of materials bolts, nuts and washers, filter media, foundation bolts fabrication charges, welding charges, erection charges, transport charges and painting etc., complete.

Design Fabrication, Supply and erection of Bag filter with 20 micron with 2.5 m3/hour with Polypropylene Gadridges with 5 1/2 " dia 20" length. The cost includes cost of bag filter, stand , fabrication charges, and fixing at site transport charges to site., etc., complete.

Design Supply, fabrication and erection of Advanced Oxidation Process with Ozone Generator includes the ozone recirculation pump in 4 m3 /hour. The type of the pump is horizontal, Centrifugal, Non clog, self priming flexible coupling drive arrangement. The pump make is kirloskar/CRI/equivalent, The capacity of the motor is 1 HP. The type of the motor is TEFC, IP55, CLSS-F insulation, suitable for 3 phase supply, 440V, 50HZ . ozone generator with a capacity of 50 gms / hour with oxygen concentrator, including the cost of epoxy coating for ozone reactor tank, water ozone mixing equipments with level gauge, safty valve with 1 HP motor. The cost includes the ozone generator, oxygen generator, ozone recirculation pump, motor, Stand by pump and motor for ozone recirculation pump, base frame, Motor Guards, foundation bolts, labour charges, erection charges, transport charges etc., complete.

Design Supply, fabrication and erection of Activated Carbon filter unit with 530 mm dia and 1570 mm height. Activated carbon filter is a vertical, cylindrical vessel made out of FRP The inlet pipe inside the vessel is designed to have a bell mouth arrangements for liquid/water distribution, so that the filter media is in position & will not get disturbed. The bottom collection system is provided with header and lateral pipe arrangements with necessary holes. The filtered water is collected this header lateral pipes, will flow out to outlet pipes and vice versa. The filter media consists of Activated Carbon filled over & under bed media of Course Silex. The size and height of the filter media is as per the design and standards.The joints are properly vessel (Multi graded Sand Filter ) is supported by FRP legs, thereby fixing the vessel with foundation bolts properly in the concrete foundation bed. The cost includes the cost of materials bolts, nuts and washers, filter media, foundation bolts fabrication charges, welding charges, erection charges, transport charges and painting etc., complete.

Design Supply and erection of Back wash pump with motor with the capacity of 5 m3 /hr , head of 3m as per the design. The type of the pump is horizontal, Centrifugal, Non clog, self priming flexible coupling drive arrangement. The pump make is kirloskar/CRI/equivalent, The capacity of the motor is 2 HP. The type of the motor is TEFC, IP55, CLSS-F insulation, suitable for 3 phase supply, 440V, 50HZ . Motor make is Kirloskar/CRI/Equivalent. Necessary base frame, foundation bolts nuts are provided to fix the coupled pump set above the foundation bed. The cost includes the pump, motor, Stand by pump and motor, base frame, Motor Guards, foundation bolts, labour charges, erection charges, transport charges etc., complete.

Design Supply, Fabrication and erection of piping for sewage treatment plant of capacity 50m3. The piping work consists of 1) Suction lines from Equalization tank, delivery lines to Tube settler thro' raw sewage transfer pumps. 2)Pipe lines for Blowers to Equalization tank Both MS and PVC pipes with necessary valves, pressure gauges are used as per the design and suit the flow rate. 3)Pipelines from Clarifier tank Bag filter and Multigraded sand filter 4)Pipe line from multigraded Sand filter to Ozone reactor and Ozone reactor to Activated Carbon Filter 5) Pipe line from Backwash pump to Mutigraded filter and Activated Carbon filter 6) Necessary pipe lines , valves, pressure Gauge for filters, flow meters for tube settler feed, Sand filter , Activated Carbon filter, float level switch. The total piping network as given above, is within the sewage treatment units. The cost includes the cost of pipes (MS, UPVC and 1" dia to 3"dia), Specials, valves, pressure gauges, flow meters, pipe fittings, fabrication charges, labour charges, transportation charges etc, complete.

Design, Fabrication, supply, erection of electrical panel board with fully automated sytem , necessary starters, main switches, voltmeter, ammeter, and electrical cables of required sizes from pumps to panel board as per design. The size of panel board is approximately 3 feet x 3 1/2 feet, fabricated with MS sheets and powder coat. Necessary provisions are given in the panel board for bus bars, main switch , starters, switches, voltmeter ammeter as per the design to suit sewage Treatment plant motors. The cables are run from panel board to the all pumps and other electrical accessories such as level switches dosing pumps etc complete,. The cable sizes are as per the design and suitable for electrical motors fixed in the Sewage treatment Plant. No lighting points are considered. The cost includes the cost of panel board, starters, switches, voltmeter, Ammeter, main switch, cables for motors, labour charges etc., complete.

M/s. Giant Construction Company (BID ID -1376221)

R MANIKANDAN (BID ID -1377182)