Corporation Of Chennai Tender

Earth work excavation in all soils and sub soils for foundations excluding refilling with initial lead of 10 m and lift of 2 m.

Plain Cement concrete work 1:4:8 (1 cement, 4 Crushed Stone Sand (Commercially called M-Sand) and 8 blue granite broken stone jelly 40mm gauge) including consolidation curing, etc. complete for foundation, etc. upto basement

Supplying and erecting centering for sides and soffits including supports and shuttering upto 3m high for plane surface such asside slabs of RCC boxing and similar vertical RCC slab etc. withall cross bracings using mild steel sheets of size 90x60cm and 10gauge stiffened with welded mild steel angles of size 25x25x3mm for boarding laid over Oak (country wood) joists of size 10x6.5cm spaced at about 90cm centre to centre and supported by casuarina props of 10 to 13cm dia spaced at 75cm centre to centreetc. complete

Providing and laying in position ,Standardised Concrete Mix M-20 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 325 kg/m3 and m,aximum water cement ration of 0.55, including admixture (Plasticiser/Superplasticier) in recommended proportions as per IS:9103 to accelerate ,retard setting of concrete,improve workability without impairing strength and durability with about (5.0 cum) 7730 kg of 20 mm machine crushed stone jelly and with about (3.3 cum) 5156 kg of 10-12mm machine crushed stone jelly and with about (4.79 cum) 7670 kg of sand, nut excluding cost of reinforcement grill and fabricating charges,centering and shuttering and also including laying,vibrating with mechanical vibrators,finishing,curing,etc and providing 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 Standrands.(No separate payment will be made by the Department for the excess usage of materials)

Supplying mild steel rods upto 16mm dia including cutting bending hooks cranking fabricating assembling and laying in exact position tieing with soft steel wire 16 or 18BWG etc. complete for all RCC works

Refilling with excavated earth in regular layers of 15cm thickeach including carefully ramming watering consolidating etc. complete for foundation and basement.

Carting away the surplus earth/debris to a lead of 12km.and dumping in the Corporation Land as directed during execution

Supplying of 160mm dia PVC pipe with ISI Monogram (working pressure 6kg/cm2) for sanitary pipes

Supplying and Jointing 20mm dia PVC pipe.including cutting threading and jointing with necessary specials fixing to wall with clamps and screws including making holes in the wall or drilling holes in roof and making good the wall or roof after fixing with necessary scaffolding etc. complete..

Providing Iron Barricading of size 2m width and 1 m height with 40mm dia MS Tubular pipe for vertical supports on both sides and three lines of barricading with 25mm size MS tubular pipe and 2 x 1m M.S. Sheet with name board of size 0.60 x 0.45 m size M.S.sheet (20 gauge) including Cutting, Welding, fabrication charges and one coat of primer and 2 coats of enamel paint of approved quality with fixing of indication with reflecting stickers and necessary interlocking arrangements with adjoining units and placing the barricading units as directed at the site for a period of 28 days. The M.S. Sheet barricading is a temproray barricading and can be removed and reused after the completion of work in a particular stretch.

Construction of cast -in- situ Silt Catch Pit With Rain Water Harvesting Structure of inner size 600 X 600 x 600 mm including necessary earth work excavation including providing foundation in PCC 1:5:10 under walls 150mm thick and cutting the existing storm water drain of size 300 x 150mm for fixing 2 Nos of 160mm dia PVC pipe on the storm water drain mouth, with RCC cast in situ wall of size 120mm in RCC 1:1.5:3 with steel of 10.60 kg including fixing Ductile Iron grating hinged with frame Clear opening of size 600 x 600mm of class C-250 (Heavy Duty 25MT) - completing the finishing work etc., cost per each number. Using Hand Bore Set drilling of bore hole of 300mm dia upto 4.35m depth including shifting of the hand bore from one place to another place within 5 km and filling in with 40mm HBG metal with 200mmdia pvc pipe 6kg/cm2

Construction of cast -in- situ Silt Catch Pit of inner size 450 X 450 X 450 mm including necessary earth work excavation including providing foundation in PCC 1:5:10 under wall 150mm thick and cutting the existing storm water drain of size 300 x 150mm for fixing 2 Nos of 160mm dia PVC pipe on the storm water drain mouth with RCC cast in situ wall of size 120mm in RCC 1:1.5:3 with steel of 9.25 kg including fixing Ductile Iron grating hinged with frame clear opening 450 x 450mm -25 MT -completing the finishing work etc.

Supplying and fixing of 24" FRC manhole cover with frame 600mm dia clear opening heavy duty as per IS:12592/2002. The frame & cover shall bear a non fracture load of 20MT for 30seconds with frame height of 165mm, cover height 90mm, Bearing (Seating area of cover)75mm with Hot Dip Galvanizing Hook of cover 16mm, frame edge protection flat of size 25 x 3mm exposed surface of M.S. rings shall be painted with anti corrosive bitumastic paint

Hire charges for Dewatering - Diesel Pumpset above 3HP to 7.5 HP with fuel and crew charges including transportation

Towards the hire charges for providing temporary approach platforms to the residences near execution site including the cost of fabrication,placing properly across the drains removing the same after the work is complete etc as directed by Engineer in charge. The approach platform will be made of 2.40mx1.20m - 6mm MS sheet fabricated with 50mm dia B-class MS pipe- 3.6m at bottom longitudinal and 3 Nos MS flat 25mmx6mm cross direction and both side of hand rail with 50mm dia 1 No of horizontal and 2 Nos of Vertical support including fixing MS flat drilled and suitable for joining with bolts and nuts including cost of materials, welding, painting etc complete

Dismantling of RCC Slab (reinforcement is being corroded) from Storm Water Drain - Steel is declared unfit for use

Dismantling the existing brick or stone masonry work in cement mortar under 3m high including carefully clearing the debris etc. complete.