Construction of 8 Additional Class Rooms in Government Higher Secondary school at Thirumangalakkottai Keelaiyur in Orathanadu block of Thanjavur District under NABARD RIDF XXX

Amount

Earthwork excavation for foundation in all soils and sub soils and to full depth as may be directed except in rock requiring blasting but inclusive of shoring strutting and balling out water wherever necessary and refilling the sides of foundation with excaved earth in layersof not more than 15cm thick well rammed consolidated depositing the surplus earth within the compound as shown by the departmental officers with in initial lead of 10 meters and initial lift of 2 meters and clearing leveling the site etc.complete complying with standard specification.

Supplying and filling in foundation and basement, etc with sand gravel mix 1:1 (One sand One gravel) including premixing and filling in layers of not more than 15cm thick well rammed watered and consolidated etc. complete complying with standard specification

Supplying and FILLING GRAVEL Supplying and filling in 'foundation and basement with filling sand in layers of not more than 15cm.thick well rammed watered and compacted -1m3 etc., complete complying with standard specification.

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

Cement concrete 1:5:10 (one cement five sand and ten aggregate ) using 40mm size hard broken granite stone jelly for foundation including dewatering if necessary and laid in layers of not more than 15cm thick well rammed and fully compacted etc. complete

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

Foundation & Basement

In Ground Floor

First floor

Second Floor

Third Floor

Supplying and erecting shuttering including necessary supports for plan surfaces and foundation and basement for RCC column footings, grade beams, plinth beams stair case steps, etc. using mild steel sheets of size of 90cm X 60cm (or) suitable size 10

For plan surfaces such as RCC floor slabs, roof slabs, rectangular, square, Tee (or) ELL beams, lintels bed Black, stair case waist and landing slabs, landing beam, portico slab, portico beam etc

For plan surfaces such as RCC rectangular, square, columns and sunshade etc

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).

Foundation and basement

In ground floor

In First floor

In Second Floor

In Third Floor

Supplying fabricating and in position of mild steel or ribbed tor steel grills for all RCC works as per the design given including cost of steel and binding wire in all floors etc. complete complying with standard specifications (The contractor has to m

Cement concrete 1:5:10(One cement five sand and ten aggregate ) using 40mm size hand broken granite stone jelly for flooring including well rammed and rendering the top surface rough to receive the floor finish, curing etc. complete complying with stan

Brick partition walls of 11.50cm thickness using best quality Fly Ash Bricks of size 23 x 11 x 7 cm in Cement Mortar 1:3 (One Cement and Three Crushed stone Sand) using hoop iron reinforcement if found necessary including curing etc. complete and as directed by the departmental officers. (Hoop iron reinforcement will be measured and paid for separately)

Ground floor

First floor

Second Floor

Plain Cement Concrete 1:2:4 (one cement, two sand and four hard broken stone jelly) using10-12mm jelly for wearing coat including laying, compacting, finishing and curing, etc., complete as per standard specificatins and as directed by the departmental officers.

In First floor

Paving the Top of roof with Solar refelective 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 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)

Paving the floor with kota stone slab of size 600 x 600 of 18 / 20mm (un-polished) in all floors laid in of cement mortor 1:3 (one cement three crushed stone sand), 20mm thick and pointed with colour cement neatly including polishing with polishing stone and oxalic acid etc., so as to perfectly smooth and glossy and including hire charges for polishing machine and power consumption charges etc. The kota stone slabs and other materials to be used shall be got approved by the Executive Engineer concerned before use on work, etc., complete as per standard speicification.

Kota Stone Slab 600 x 600 of 18 / 20mm size

Paving the floor with pre-polished concrete anti-skid tiles (Required shape and design) of 20mm thick of approved quality and colour laid in Cement Mortar 1:3 (One Cement and Three crushed stone sand) 20mm thick and pointed with white cement mixed with colouring pigment at the rate of 0.40 Kg. / sq.m., 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 Executive Engineer before use on works)

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

Supplying and applying of two coats of putty of 3mm thick over the exposed RCC surface of ceiling including finishing the joints smoothly with grinding machine and the surface shall be thoroughly cleaned out of dust and scrubbing. The surface shall then be allowed to dry for atleast 48 hours. It shall then be sand papered (water proof abrasive sheet) to give a smooth and even surface. Any unevenness shall be made good by applying Ist coat of putty mixed with water on the entire surface including filling up the undulations and applying 2nd coat of putty after 6 hours of 1st coat of putty and then sand papering (water proof abrasive sheet) the same after it is dry and finishing the surface smoothly etc., complete complying with standard specifications and as directed by the Departmental Officers. [The rates are inclusive of hire charges for grinding machine with wheel, cost of sand paper (water proof abrasive sheet), cost of putty blade, labour charges for grinding the joints and sand papering, two coats of putty, scrapping the putty area to level the surface smooth, etc., complete.] The putty should be got approved by the Executive Engineer before use on work.

Painting the wall two coats with approved weather proof Exterior Emulsion paint over one primer coat of over cement plastered wall surface ect., complete complying with standard specification.

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 plaster of paris putty, wherever required etc., complete complying with standard specification.

Supplying, fabricating and fixing in position of mild steel door in position using M.S. angle of size 40 x40 x 6mm for outer frame and 35 x35 x5mm for shutter frame fully covered with M.S. sheet of 18 gauge with M.S. flat of 32 x 6mm size for internal stiffeners horizontal 2 Nos diagonal 3 Nos. bottom tie 1 No. Two numbers of aldrops and two Nos. of tower bolts including providing one coat of red oxide primer. The rates shall inclusive of cost of all materials labour charges for fixing the door in position including dismantling the masonry, concrete and redoing the same duly packed with concrete etc., complete as directed by the departmental officers.

Single leaf door

Double leaf door D

Fabricating, supplying and fixing of steel Emergency exitdoor cum, emergency window with the following specification. M.S. angle in size 40x40x6mm are used for the outer frames and M.S. angle of sie 35x35x5mm for the shutter frame, stiffners with 32x6mm M.S. flats provided at required intervals in the shutter frames 18 guage CR sheet is laid as panel and welded instant for 1/3 bottom portion of the shutter, M.S. flat 18x5mm is welded over the 32x6mm M.S flat sandwitching the CR sheet in between additional stiffner with 18x5mm M.S. flat is provided diagonally at the rear-side of the shutter. The balance 2/3 portion at top is provided with grill at an average weight of 15kg/m2 and the top portion of operation emergency window is to be made of 25x25x3mm M.S. angle welded intact with CR sheet and 25x3mm M.S. flat at diagonally at the near side of the window at required interwals 6 Nos. of hinges to be provided,6 Nos of holdfast 100mm in length made of angle section spliced at the ends are welded to the outer frame of the door. Tower bolts 2 Nos. one at top and the other at the bottom are to be provided one aldrop is provided at an appropriate place in the door 2 Nos. of 'D' type handle for emergency window and 2 Nos of handle for door is to be provided at appropriate places. A tie bar is provided at the bottom of the outer frame to prevent twisting of frame during transportation of fixing. All members are given one coat of red oxide primer as directed by the departmental officers. The rate includes cost of materials, labour transportation to side of works, loading, unloading and all other incidental charges etc., complete.

Manufacturing supplying and fixingin in position fully panelled with CR sheet 18g steel windows (four leaf)with openable shutters, all made out of steel sections confirming to IS 7452/1990. The outer frame and shutter frames of windows made out of ' Z ' section (F.7D) of size 25mm X 20mm X 3mm and mullions are made of (F4B) 'J' sections of size 46mm X 25mm X 3mm, the shutters shall be individual and each of them can be operated separatly and the shutters sash bars. Two numbers of sturdy hinges and a handle cum latch of special type shall be fixed for each openable shutter and suitable open shall be left for its easy operation.One number of adjustable wind stay with locking brackets of sufficient length shall be provided for each shutter. Four numbers of 40mm X 40mm X 3mm. Angle hold fasts of 230mm length shall be welded to the outer frame at appropriate point. Mild steel square guard bars of 12mm size shall be welded to the inner face of the window at equal intervels of not exceeding 100mm spacing fixed. The shutters shall open outside and all members of the window shall be painted one coat with red oxide primer FOUR LEAF

Painting new iron works such as steel doors, windows, ventilators, window bars, balustrades etc, with two coats ofapproved quality and colour of synthetic enamel paint over the existing red oxide primer in all floors etc, complete complying with standard specifications.

Supplying and fixing fine polished cuddapah slab of following thickness for cup-board arrangements including laying to correct alignment with necessary cement mortar and black powder etc, complete complying with standard specification and as direct. 38 / 40mm thick

Providing Blockboard in two layers with first layer in cement mortar 1:5 (one cement and five crushed stone sand)20mm thick and the second layer in Combination mortar 1:1:6(one cement one lime and six crushed stone sand) 20mm thick and providing band all round the block board in c.m 1:5 (one cement and five crushed stone sand) for 20mm thick and 50mm width including cost of one coat of block oxide paint of approved quality complying with standard specification.

Supplying and fixing in position of approved quality PVC rain waterdown fall pipes of 110mm diameters with working pressure of pipe 4kg/cm including cost of pipes with necessary shoes, bends, clamps, teakwood plugs, brass screws and fixing of grating at junction of parapet and the R.C.C roof slab including finishing neatly etc, (the size of teakwood plugs to be used shall be 150mm X 25mm in front and 200mm X 75mm in all others stde with a depth 100mm.) The PVC pipes shall be fixed with teakwood plugs by means of ' U ' clamps and at the center of the pipe line also in addition to these formore than three meters pipe length complying with standard specification.

110mm for one Floors

110mm for Two Floors

110mm for Three Floors

Supplying and fixing of M.S.grill of approved design for open courtyard, grill, grill work to doors and windows and ventilators using M.S flat of size 20x6mm for outer member 12x6mm for inner member which should be fixed to s which should be fixed on edges including priming coat of best approved quality red oxide primer etc., complete complying with standard specification.

Supplying and fixing in position steel balustrades using 20mm square rods spaced at 150mm centre to centre so that the two balustrades in each step shall be placed centrally and the top of balustrades connected with the hand rails (cost of hand rail shall be measured and paid separately) by means of MS flats of size 40mm x 6mm in the groove 40mm x 6mm provided at the bottom of hand rail; the bottom of balustrades shall be fixed on to the top of step concrete. An additional MS flat of size 50mm x 6mm shall be provided at the centre of balustrades connecting all square rods to the entire length including cost of square rods, flat and applying one coat of red oxide primer to the iron surfaces, etc., complete complying with standard specification and as directed by the departmental officers.

Supplying and fixing 40mm dia GI pipe for staircase hand rail including labour charges for cutting, welding and fixing with MS flats (excluding cost of flat), etc., as directed by the departmental officers

Supplying and fixing GI pipe handrails for handicapped persons using 50mm dia GI pipe double handrail at a height of 800mm and 900mm from floor level with 25mm thick MS square rods as balusters embedded in the concrete and welded with pipe at 60cm centre to centre as shown in CA Job No. 9123 / 1 including cutting, welding, bending and fixing charges and applying one coat of red oxide primer for MS members as directed by the departmental officers

Providing granolithic floor finish of the following thickness with plain cement concrete 1:2:4 (One Cement, Two crushed stone sand and Four aggregate) using 10 to 12mm gauge hard broken stone jelly including laying, finishing and the top rubbed smooth with power trawl, thread lining, curing etc. complete complying with standard specification and as directed by the departmental officers. (The rate is inclusive of necessary planking for panelling wherever necessary and as directed by the departmental officers) for 20mm Thick

Supplying and laying of Interlocking Paver Block Stone 63mm thk. Over a base layer of crushed stone sandfilling incl. Cost of materials laying and Labour charges etc.,

Providing Anti-termite treatment to soil adjecent and under building foundation, plinth periphery of the building by application of chemicals of IS 63613 part I to IV in stages to suit the progress of work consist as per the detailed specification as below. Including breaking of termite mounds, making holes with crow bar, closing the holes after the treatment and including cost of chemicals, labour charges, transport and storing etc., complete and as directed by the departmental officers.

Paving the floor with best approved quality Flammed steel grey granite slab 1200mm x 600mm, 16mm to 18mm thick of Synthetic Grey, Paradise and similar varieties with machine cut edges laid over a cement mortar bed of 20mm thick using cement mortar 1:3 (One cement and three crushed stone sand) fixing the slabs with required cement slurry and laid in true right angles with minimum possible width of joints and pointing the joints with white cement mixed with mathcing colouring pigments etc., The granite stone slabs and other materials to be used shall be got approved by the Executive Engineer concerned before use on work, etc., complete as per standard speicification.

Manufacturing supplying and fixing in position of teracotta jally 20x20x5cm thick approved quality and design in cement slurry including cost of materials labour curing lifting fixing in position etc, complete complying with standard specification and as directed by the departmental officers in all floors.

ADD GST 18%

N KRISHNASAMY (BID ID -1209577)

R K ENGINEERING (BID ID -1210528)