Construction of 5 class room in Government Model Higher Secondary School at Vengaraikottaikkadu in Thanjavur district.

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 Crushed stone sand gravel mix 1:1 (One Crushed stone 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 Crushed stone 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 Crushed stone 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 cement mortar 1:6(One cement six Crushes stone sand) using the following mortars and using best quality of country bricks of size 8¾" X4¼"X2¼" for foundation and basement including curing etc. complete complying with standard specification.

Foundation & Basement

Brick work in cement mortar 1:6(One cement six Crushed stone sand )of following proportions using best quality of country bricks of size 8¾" X4¼" X 2¼" for super structure including curing etc. complete complying with standard specification.

In Ground Floor

First floor

In second floor

Supplying and erecting steel centering including necessary supports for plane surfaces for Reinforced Cement Concrete works such as column footings, column pedestals, plinth beams, grade beams, staircase steps, etc. which require only nominal strutting using mild steel sheets of size 90cm x 60cm and 10 BG stiffened with welded mild steel angles of size 25mm x 25mm x 3 mm for boarding, laid over silver oak joists of size 10cm x 6.5cm spaced at about 75cm centre to centre or at suitable intervals etc. complete in all floors complying with standard specifcation. (Payment for centering shall be given after the concrete is laid)

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 about 90 cm centre to centre and supported by casurina props of 10cm to 13 cm dia spaced at not more than 75 cm centre to centre etc. complete complying with the standard specificaiton. (Payment for centering shall be given after the concrete is laid)

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-25 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 350 kg/m3 and maximum water cement ratio of 0.50, 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 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

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)

Cement concrete 1:5:10(One cement five Crushed stone 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 wall of thickness 10.8 cm using Country bricks of size 8 3/4" x 4 1/4" x 2 1/4" in cement mortor 1:3 (one cement and three Crushed stone sand) etc.,Complete

Ground floor

In first floor

In second floor

Plain Cement Concrete 1:2:4 (one cement, two Crushed stone sand and four hard broken stone jelly) using12mm jelly for wearing coat including laying, compacting, finishing and curing, etc., complete as per standard specificatins and as directed by the departmental officers.

Ground floor

In First floor

In Second 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 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)

Paving the floor with best approved quality fine polished Kota stone slabs of size 600 x 600 of 18 / 20mm with machine cut edges and matching marble slab not less than 100mm width other than Adanga Marbles as border laid over a cement mortar bed of 20mm thick using cement mortar 1:3 (One cement and three sand) fixing the slabs in true right angles with minimum possible width of joints and pointing the joints with white cement mixed with mathcing colouring pigments and polishing with floor polisher to a high degree of finish 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.

Fine polished Kota Stone Slab below 600 x 600 of 18 / 20mm size

Flooring with following non slippery ceramic Industrial tiles of size 305 x 305 x 6 mm laid over 20 mm thick cement mortar 1:3 (One Cement and Three Crushed stone Sand) base mortar over the existing slab / floor including cutting the tiles to the required size with special cutter wherever necessary, laying in position and pointing with white cement mixed with colouring pigment at the rate of 0.3 Kg. / sq.m. etc., complete complying with standard specification. (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 P-Sand), 12 mm 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 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 P- Sand) 10 mm thick including hacking the surfaces and providing cement mortar nosing, beading for sunshades, staircases, steps, landing slabs and finishing, curing, etc., complete in all floors complying with standard specification and as directed by the departmental officers

Supplying and Painting the wall with two coats of WALL PUTTY as instructed by departmental officers including preparation of surface curing etc.complete in all floors complying with standard specification. (The wall putty shall be got approvedby the Executive Engineer before use on works)

White washing one coat with freshly burnt white shell lime in all floors including cost of lime, blue powder, fevicol type gum, brushes, scaffolding charges, etc., complete complying with standard specification and as directed by the departmental officers.

White washing two coats with freshly burnt white shell lime in all floors including cost of lime, blue powder fevicol type gum, brushes, scaffolding charges, etc., complete complying with standard specification and as directed.

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.

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 35x35x6mm 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. Double leaf door D

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. Single 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 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

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

Cement Concrete 1:2:4 (One cement two sand and four aggregate) using 20mm HBG stone jelly (Machine Crused) for RCC jally works etc.,

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 160mm 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.

For Three floors

For Two floors

For one 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

ADD GST 18%

S Kannan