Fencing by Construction of See-Through barrier along the boundary of Pallikaranai Marsh land to the length of 3948 Mtrs Pallikaranai Range of Chennai Forest Division during 2025-26

Installation of Vertical Bored cast in situ RCC piles of 300mm dia in all types of soils, using Standardised Concrete Mix of following grade, with sulphate resistant Cement or OPC/PPC, etc and Crushed Stone Sand and 20mm and down graded HBGS jelly coarse aggregate. The rate includes cost for placing of reinforcement cage in bore hole in correct position, cost of boring to the required depth with Bentonite solution with temprory casing of required length, conveyance of RMC to site and pouring concrete using Tremine pipes, conveyance of all materials to the site including all tools and plants, shifting the plants and equipments from one point to another, excavtion of mud pits for circulation of Bentonite soultion, closing the mud pits to original level and mud removal with initial lead and lift but including dismantling the concrete above the cut off level etc complete as directed by the departmental officers including socketing.

Installation of Vertical Bored cast in situ RCC piles of 450mm dia in all types of soils, using Standardised Concrete Mix of following grade, with sulphate resistant Cement or OPC/PPC, etc and Crushed Stone Sand and 20mm and down graded HBGS jelly coarse aggregate. The rate includes cost for placing of reinforcement cage in bore hole in correct position, cost of boring to the required depth with Bentonite solution with temprory casing of required length conveyance of RMC to site and pouring concrete using Tremine pipes, conveyance of all materials to the site including all tools and plants, shifting the plants and equipments from one point to another, excavtion of mud pits for circulation of Bentonite soultion, closing the mud pits to original level and mud removal with initial lead and lift but including dismantling the concrete above the cut off level etc complete as directed by the departmental officers including socketing.

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. Upto 2m depth

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

Supplying and filling in foundation and basement with filling 40mm gauge hard broken stone jelly in layers of not more than 15 cm thick, well rammed watered and consolidated etc. complete complying with standard specification and as directed by the departmental officers.

Supply of Acanthine / Polyurathene Sheet with 1mm thickness in the basement of Grade beam 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 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 abote 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 plane surfaces such as rectangular or square RCC columns, sunshades, top and bottom slab of RCC boxing, etc.

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

Providing and laying in position, Standardised Concrete Mix M-30 Grade in accordance with IS:456-2000,using 20mm and down graded hard broken granite stone jelly for all RCC items of works with minimum cement content of 400 kglms and maximum water cement ratio of 0.45, 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 (5.0 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, 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 & Basement

In Ground floor

In First floor

Wall below 3 mtr

Wall above 3 mtr

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 expansion joint of 12.5mm wide in between RCC twin columns from top of pedastal to full height including filling the inner space with suitable non-absorbent, flexible and well compressible filler materials of approved quality and brand; finishing the sides of RCC columns with polysulphide sealents for a depth of 7.5mm on either side covering the inner space filled with filler materials as above etc., complete complying with standard specifications and as directed.

Plastering and finishing the exposed surface of all RCC items of work with Cement Mortar 1:3 (One Cement and Three 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

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 and fixing of M.S. grill of approved design for open courtyard, grill, grill work to doors and window openings etc., using necessary mild steel flats for inner and outer members which should be fixed on edges including cutting the members, welding, grinding, one coat of priming coat using best approved quality red oxide primer, dismantling of walls / concrete if necessary, fixing and finishing the dismantled portion to original condition etc., complete complying with standard specification.

Supplying and fixing of M.S. Entrance Gate of approved design for open courtyard, grill, grill work to doors and window openings etc.,using necessary mild steel flats for inner and outer members which should be fixed on edges including cutting the members, welding, grinding, one coat of priming coat using best approved quality red oxide primer,dismantling of walls /concrete if necessary, fixing and finishing the dismantled portion to original condition 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.)

Providing ornamental Sthapathi band of width 150/200 mm (two steps) (Shape and size should be directed by the Engineer-in charge of works ) using Cement Mortar 1:2 (One cement and two cement).The shape and size adopted as per the approved drawing and as directed by the departmental officers etc.,complete.

S+B11:F38upply and fixing of 1000 mm dia NP3 Class RCC Pipe whereever required for draining the storm water from residential area into marsh land in order to avoid inundation during monsoon in to complete, as directed by the Departmental Officers, as per standard specifications.

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