Kolkata Municipal Corporation Tender

Constructing catch pit to a depth of 1.0m (Insid(e) with 250mm th. 1st class Brick Work (1:4) in all sides over a layer of jhama brick soling & 100mm th. jhama cement concrete (1:4:8) including necessary earth work, providing approved type C.I. Syphone (150mm dia) with topping RCPC gully grid (5MT load bearing capacity) constructing invert with brick -on-edge, including 20mm th. inside cement plaster (1:4) finished with neat cement punning, at the top 100mm th. R.C.C. slab (1:1.5:3)  with stone chips including necessary reinforcement, shuttering as per standard drawing  and as directed by E-I-C complete in all respect and removal of surplus earth with all costs of labour and materials. Inside measurement of catch pit,  600mm X 525mm

Constructing Special Inspection chamber pit (size 900 mmX600 mm) to a depth of 1.15 metre (insid(e), 250 mm thick 1st class brick work (1:4) in all sides over a layer of jhama brick soling and 150 mm thick Jhama cement concrete  (1:4:8) including necessary earth work, invert with ordinary cement concrete (1:2:4) with stone chips over brick-on-edge flooring, plastering inside  with 20 mm thick cement plastering (1:4) and neat cement punning, including supplying,fitting and fixing one 450 mm. dia (15 MT) heavy duty RCPC manhole cover of approved make with R.C.C. slab of 100 mm thick with cement concrete (1:1.5:3) with stone chips including necessary reinforcement, shuttering and CI foot steps (4 kg each) (Depth of invert between 1.15 m to 1.80 m below G.L.)

SANITARY AND DRAINAGE WORKS (B)-(IV)INSPECTION PIT,SEPTIC TANK,SOAK PIT ETC. (a) Original Works 1.Constructing Inspection pit of inside measurement 600mm X 600mm X upto 600mm(depth) with 250 mm thick 1st. class brick work in cement mortar (1:4) on all sides, bottom of the pit consisting of 100 mm thick cement concrete (1:3:6) with stone chips over a layer of jhama brick flat soling, 15 mm thick (1:4) cement plaster to inside walls and out-side walls upto G.L. and 20 mm.thick (1:4) plaster to bottom of the pit, providing necessary invert with cement concrete (1:3:6) with stone chips as per direction, neat cement finishing to entire internal surfaces, top of the pit covered with 100 mm thick R.C.C. slab (1:1.5:3) with stone chips and necessary reinforcements upto 1% and shuttering including 6 mm thick cement plaster (1:4) in all external surfaces of the slab and one 560 mm dia. R.C.C. manhole cover of approved make supplied, fitted and fixed in the slab with necessary fittings, necessary earthwork in excavation in all sorts of soil, filling sides of the pit with earth and removing spoils after work complete in all respect with all costs of labour and materials.i) With Pakur variety. (SAIL/TATA/RINL)