Construction of Single Vent Cut and Cover Channel and Retaining Wall from Airport to Adayar River in Pallavaram Taluk of Chengalpattu District.

Dismantling, clearing away and carefully stacking materials useful for re-use for any thickness of Reinforced cement concrete et by using machineries complete complying with standard specifications and as directed by the departmental officers

Earth Work Narrow excavation for foundation in all soils and sub soils and to full depth as may be directed by the Departmental Officers except hard rock requiring blasting including shoring, strutting and baling out of surface water wherever necessary and refilling the sides of foundation with excavated soil in layers not exceeding 15 cm thick, well rammed and consolidated and depositing including all initial leads and initial lifts, etc., complete complying with standard specifications and as directed by the departmental officers. (Narrow excavation)

Supplying and erecting centring for vertical plain / RCC concrete walls of supply channel, retaining wall etc of follwing height with necessary supports, all cross bracing with mild steel size of 90 cm x 60 cm and gauge BG 10 stiffened with welded mild steel sheet angles of size 25 mm x 25 mm x 3 mm for bearing laid silver Oak / Country wood joist of size 7.50 cm x 5.0 cm spaced @ about 90 cm C / C and supported by Casurina props of 10 cm to 13 cm spaced @ 75 cm C / C, etc., complete complying with standard specifications and as directed by the departmental officers (Vertical centering)

Vertical Centering upto 0.90 m Height

Vertical Centering upto 2.70 / 3.00 m Height

Vertical Centering 3.00 m to 4.00 m Height

Vertical Centering 4.00 m to 5.00 m Height

Vertical Centering 5.00 m to 6.00 m Height

Vertical Centering 6.00 m to 7.00 m Height

Vertical Centering 7.00 m to 8.00 m Height

Supplying and erecting centering for sides and soffits and strutting upto 3.0 m height for plane surfaces such as RCC works etc, with all cross bracing with mild steel size of 90 cm x 60 cm and gauge BG 10 stiffened with welded mild steel sheet angles of size 25 mm x 25 mm x 3 mm for bearing laid silver Oak / Country wood joist of size 10 cm x 6.5 cm spaced @ about 90 cm C / C and supported by Casurina props of 10 cm to 13 cm spaced @ 75 cm C / C, and removing the same without any damages etc., complete complying with standard specifications and as directed by the departmental officers. (Horizontal centering)

Supplying, fabricating and placing in position of Mild Steel or Ribbed Tor Steel for all RCC works as per design & drawing given including cost of steel, binding wire and labour charges for cutting, bending, laying in position and tying with binding wire, etc. complete complying with standard specifications and as directed by the departmental officers

Providing and placing Plain Cement Concrete M10 grade using crusher broken hard granite course aggregate (well graded) of nominal maximum size of 20mm and down graded to I.S specified grading (To achive the specified characteristic strengh of 10N/mm2 in 28 days) and mixing the ingredients in approved mixer including dewatering of the placement site by baling / pumping and diverting wherever necessary placing in layers, mixing and vibrating, water curing, finishing the surface with all leads and lifts etc., as per the direction of the engineer in charge of works and complying with technical specifications.

Supplying and laying of ready mix for M 30 grade of concrete having charaterstic strength not less than specified in the IS 456 - 2000 using Ordinary portland cement with minimum cement content of 300 Kg / cum confirming to IS 8112. Coarse aggregates having a specific gravity of 2.60 using 20 mm down graded hard blue granite broken stone jelly and fine aggregate without flyash as per IS 383 - 1970 ( 2007 ) with suitable water cement ratio not less than 0.45 and not exceeding 0.50 of water quality confirming to IS 456 - 2000 including use of plasticizer of approved make & dosage of required grade at all locations and levels with specified high workability as per IS 1199 - 1959 ( 2004 ). The initial & final setting time confirming IS 12269 - 1987 ( 2004 ) with maximum temperature of concrete at the time of placing should not exceed 320C. The admixtures affecting the quality and strength of the concrete should not be used and should confirm IS 9103 - 1979 [ usual admixture - Air entraining & water reducing ]. Iincluding the cost of hire charges for pump and pumping charges to the required locations & levels as specified by the Engineer - in - charge,. laying, compacting, consolidation by using vibrators, finishing, watering, curing, testing charges as per IS 456 - 2000, 4031 - ( Part 3 & 6 ) / 1988 ( 2005 ) & ( Part 2 ) / 1999 ( 2004 ) and 516 / 1959 ( 2004 ), 4926 - 1976 ( 1990 ), mix design details to be got approved before commencement of the work adopting pour card system and other OK cards. Excluding the cost of form works, centering and shuttering placed in position etc, complete complying with standard specifications and as directed by the departmental officers. (RCC work)

Supplying and laying of ready mix for M 30 grade of concrete having charaterstic strength not less than specified in the IS 456 - 2000 using Ordinary portland cement with minimum cement content of 300 Kg / cum confirming to IS 8112. Coarse aggregates having a specific gravity of 2.60 using 20 mm down graded hard blue granite broken stone jelly and fine aggregate without flyash as per IS 383 - 1970 ( 2007 ) with suitable water cement ratio not less than 0.45 and not exceeding 0.50 of water quality confirming to IS 456 - 2000 including use of plasticizer of approved make & dosage of required grade at all locations and levels with specified high workability as per IS 1199 - 1959 ( 2004 ). The initial & final setting time confirming IS 12269 - 1987 ( 2004 ) with maximum temperature of concrete at the time of placing should not exceed 320C. The admixtures affecting the quality and strength of the concrete should not be used and should confirm IS 9103 - 1979 [ usual admixture - Air entraining & water reducing ]. Iincluding the cost of hire charges for pump and pumping charges to the required locations & levels as specified by the Engineer - in - charge,. laying, compacting, consolidation by using vibrators, finishing, watering, curing, testing charges as per IS 456 - 2000, 4031 - ( Part 3 & 6 ) / 1988 ( 2005 ) & ( Part 2 ) / 1999 ( 2004 ) and 516 / 1959 ( 2004 ), 4926 - 1976 ( 1990 ), mix design details to be got approved before commencement of the work adopting pour card system and other OK cards. Excluding the cost of form works, centering and shuttering placed in position etc, complete complying with standard specifications and as directed by the departmental officers. (PCC work)

Supplying and spreading River sand - gravel mix ratio of 1 : 1 for 10 cm thick over the top of bund and other places as required at site of work including watering and consolidation using power roller, etc, complete complying with standard specifications and as directed by the departmental officers.

Conveying the excavated surplus earth with a lead of 8 KMMR of by using tippers including loading, unloading, dumping in low lying areas spreading and leveling as shown by the departmental officers, etc., complete complying with standard specifications and as directed by the departmental officers.

Supplying and fixing Bitumen Pad of 12 mm thickness conforming to IS for joints including cost of all materials and labours etc., complete complying with standard specifications and as directed by the departmental officers

Supplying and Fixing of Man holes cover (SFRC) of 600 mm X 600mm all labours, tranportation, other necesssary equipment which is essential for fixing at site etc.,omplete, complying with standard specifications and as directed by the departmental officers of work.

Supplying and fixing PVC Water Bar 150 mm width with Singled Bulb which is essential for fixing at site etc., complete complying with standard specifications and as directed by the departmental officers.

Dewatering using 10 HP diesel engine pumpset including Hire charges, cost of diesel, Engine oil, Pump operator, Labour charges, conveyance of pumpset and fuel to site and back, loading, unloading and any other incidental charges etc, complete complying with standard specifications and as directed by the departmental officers

Shoring, and Strutting with sheet piles of size width 400 mm x height of 3m x thickness of 9mm as per IS 2314-1986 by driving on both sides of the trench from ground level up to the required depth and connecting the above sheet piles by horizontal strutting with sheet piles at an interval of 1.0m, fixing the sheet piles by connecting the horizontal strutting with casurina poles of 8cm to 10cm dia at 1.50m interval and including removing the sheet piles after the pipelines are laid, jointed, tested, and stackingit safely for other uses. It includes the cost of sheet piles and casurina poles including labour charge for erecting the sheet piles, driving the sheet piles, removing the sheet piles, fixing casurina poles,etc., complete and all other incidental charges for the depths. 0 to 3 m

GST 18 % in Figures

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