Special Repairs to Duck Bill Weir No.7 at LS 34/110 km of SLBC at Pavupattu Village in Tiruvannamalai Taluk and District.

Dismantling, clearing away and carefully stacking materials useful for re-use for any thickness of Plain Cement Concrete etc complete complying with standard specifications and as directed by the departmental officers.

Earth Work 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 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. (Open Excavation)

Providing and placing in position of Plain Cement Concrete M 10 Grade using M Sand & Graded Hard Blue Granite Broken Stone Jelly of 40 mm size mixing with mixer machine including the cost of bailing/pumping wherever necessary laying the concrete in layers of not exceeding 15 cm thick, compacting, consolidation, finishing, watering, curing etc. complete complying with standard specifications and as directed by the departmental officers.

Centering for sides and soffits including supports and strutting for plain surfaces such as R.C.C slabs cut off walls, body walls of anicuts, wings, returns trough up to 3m height using M.S Sheets of size 90cm and BG 10 gauge stiffened with welded M.S angles of size of 25mm X 25mm X 3mm laid over sliver oak (Country wood) joist of size 10cm X 6.5cm (spaced at about 90 cm c/c) and supported by casurina props of 10 to 13 cm dia spaced at 75 cm c/c complying with standard specification and as directed by the departmental officers.

Vertical Centering 0 to 90cm height

Vertical Centering 0 to 270/300 cm height

Supplying and erecting centring for sides and soffits and strutting upto 3.0 m height for plane surfaces such as RCC slab rectangular beam or L beam lintels and bed blocks, stairs and covering slabs landing beam canopy 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, etc., complete complying with standard specifications and as directed by the departmental officers.

Horizontal Centering

Providing and placing in position of Plain Cement Concrete M 15 Grade using M Sand & Graded Hard Blue Granite Broken Stone Jelly of 60% of 40 mm size and 40% of 20 mm size mixing with mixer machine and laying in layers including the cost of bailing/pumping wherever necessary laying the concrete in layers of not exceeding 15 cm thick, compacting, consolidation by using vibrators, finishing, watering, curing etc. complete complying with standard specifications and as directed by the departmental officers.

Providing and placing in position of Reinforced Cement Concrete M 20 using M Sand & Hard Blue Granite Broken Stone Jelly of 20 mm size mixing with mixer machine including the cost of bailing/pumping wherever necessary laying the concrete in layers of not exceeding 15 cm thick excluding form works, centring, shuttering and steel fabrications compacting, consolidation by using vibrators, finishing, watering, curing, etc complete complying with standard specifications and as directed by the departmental officers.