PROVN OF 100 USERS SEPTIC TANK ALONGWITH SOAKAGE PIT AT NOFRA II AT INAS 313 MEENAMBAKKAM UNDER GE NAVY CHENNAI

Excavation over areas,not exc 1.5 m deep and getting out in Hard/ dense soil complete all as specified

All as per item no.2 above but depth exc 1.5m and not exc 3m complete all as specified

M&L for Hardcore of gauge n exc. 63 mm, deposited, spread and levelled in layers n exc. 15 cm thick, watered and rammed to a true surface complete all as specified and directed.

M&L for plain cement concrete 1:4:8 type D2 (using 40 mm graded stone aggregate) as in foundation filling and mass concrete complete all as specified and directed.

M&L for brick work with sub class B bricks, straight or curved on plan exceeding 6m mean radius, built in cement mortar (1:4) all as specified directed by Engineer-in-Charge.

M&L Providing precast cement concrete Type B1,1:2:4 (20mm graded stone aggregate) as in baffles , cover slab for man hole etc and similar articles with plain faces set in CM 1:4 and the like all as specified and directed

M&L Brick work fly ash bricks with old size bricks, straight or curved on plan exc 6m mean radius built in CM 1:6 complete all as specified and directed.

M&L Reinforced cement concrete ( Nominal mix) 1:1.5 : 3, type A1 ( 20 mm graded stone aggregate) as in Slab supported on walls, beams, and columns in floors, roofs, landings, balconies, canopies, deck slab and in shelves and the like complete all as specified and as directed

Use and waste of form work to soffits of suspended slabs such as roof slabs, floors slabs, landings and similar work, not exceeding 200mm thick for fair finished surfaces complete all as specified and directed.

Use and waste of formwork to edges of concrete flats, treads, breaks in floors, window cills, concrete railings, openings in concrete walls, floor and roofs n exc 20 cm wide and sides of RCC/PCC bands in walls, horizontal or sloping and similar work exc 5cm but n exc 10cm wide complete all as specified and directed.