Retainingwall2024

Amount

Earthwork excavation for foundation in all soils and sub soils to full depth as may be directed except in hard rock requiring blasting inclusive of shoring shuttering, baling out water wherever necessary, refilling the foundation with excavated earth and depositing the surplus earth within compound in places shown by the departmental officers with an initial lead of 10 metre and initial lift of 2 metre and clearing and leveling the site etc., complete complying with standard specification and as directed by the departmental officers.

Refilling basement with excavated earth other than M sand with an initial head lead of 100 mts. and depositing the earth as shown by the departmental officers 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 M-sand and ten aggregate) using 40mm gauge hard broken blue granite stone jelly for foundation and basement including dewatering if found necessary and laid in layers of not more than 15cm thick and compacted etc., complete complying with standard specification and as directed by the departmental officers.

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 steel centering including necessary supports for plane surfaces, for all RCC works including strutting upto 3.29m in all floors using mild steel shutters of size 90cmx60cm of BG 10 stiffened with mild steel angles of size 25mmx 25mmx3mm laid over silver oak (Country wood) Joists of size 10cmx6.5cm spaced at about 90cm c/c and supported by casurina props of 10cm to 13cm dia. (spaced at 75cm c/c) etc., complete complying with standard specification and as directed by the departmental officers. (The centering will be removed after specified period of concrete without damaging the concrete)

For plane surface such as Vertical surfaces such as sunshade, boxing vertical drops, facia for sunshade and other vertical walls etc.,

Providing and laying in position, Standardised Concrete Mix M-20 Grade in accordance using with IS:456-2000, 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, with WPC 2 % 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 (5cu.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 M 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

For Super structure in Ground Floor

Special ceiling plastering in all floors and finishing the exposed surface of RCC items of work such as slab, beam, sunshade, facia, canopy slab, staircase waist slab, landing slab etc., with cement mortar 1:3 (One cement and three P-sand) 10mm thick with Bonding agent Cebex112, Zydex- Zycrete 2X or other Equalent compound conforming to BIS at 200 ml of one cement bag (50kg) for increased workablity and air entrainment including hacking the surfaces and providing cement mortar nosing, beading for sunshade, staircase, step, landing slab etc., including neat finishing and curing etc., complete complying with standard specification and as directed by the departmental officers.

Supplying, fabricating and placing in position of steel reinforcement using MS (or) RTS rods for all RCC item of works including cost of steel and binding wire in all floors etc., complete complying with standard specification and as directed by the departmental officers.

Supplying, laying and jointing PVC soil / waste pipes of approved and best variety conforming to IS. Specification with ISI. mark of the following sizes including, cutting and threading of PVC Pipes, fixing specials but excluding cost of such specials but including fixing to wall with necessary teak wood plugs, PVC clamps and screws making holes on the wall (or) drilling holes in roof and making good the dismantled portion to original condition with necessary brick work and plastering wherever necessary with necessary scaffolding charges. The PVC Pipes should be got approved by the Departmental Officers before use on work.

50 mm dia pipe

Providing expansion joint of 20mm width 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.

Painting the exterior walls surface two coats of best and approved first quality and colour of Exterior emulsion paint in all floors over one coat of primer including preparation of surface, wall putty two coats with good quality and including labour charges for rubbing the wall scrapping putty pasting works and making good smooth surface and finishing neatly etc.,complying with standard specification and as directed by the departmental officers( The quality and colour of paint should be got approved by the departmental officer before use of work)

Sub Total

O SELVAM

S GANESAMURTHI