Kolkata Municipal Corporation Tender

BUILDING WORKS ( C ) Brickworks,Concrete Works etc B. CONCRETE WORKS 1. Cement concrete with graded jhama khoa (30 mm size) excluding shuttering In ground floor and foundation (b) 1:4:8 proportion. ( 3rd Corrigenda & addenda dated 04.06.2018)

BUILDING WORKS (A) EARTH WORK,ANTITERMITE TREATMENT  6. Hire and labour charges for shoring work (including necessary close plank walling, framing, Eucalyptus/Jhou bulla piling, strutting etc) complete as per direction of the Engineer-in charge for foundation excavation (vertical surface  are in contact with supported earth is to be measured.) (This item should be executed on specific direction of the Enginner in charge). (b) For additional depth beyond 1.5 m. and upto 3.00 m

24.Construction of manhole with chamber of size as given below as per requirement without shaft with cement brick work (1:4) over 150mm. Thick Jhama cement conc. (1:4:8) bed over a layer of brick flat soling including providing 150mm. thick R.C.C. slab with ordinary cement concrete (mix1:1.5:3) with reinforcement as per standard drawing over the chamber chamber, brick on edge flooring with ordinary cement concrete (mix 1:2:4) in the invert with 20mm. thick cement plastering (1:4) finished fine with neat cement 1.50 mm. thick in the inside walls and invert, including supplying, fitting and fixing R.C.P.C. manhole cover & frame (35 M.T. load bearing capacity) with ordinary cement concrete (mix 1:2:4) & C.I. steps (4kg. Each) including cutting hard crust, excavation, dewatering, back filling and removal of spoils but excluding shoring complete as per standard drawing .(Depth of invert shall be between 1.25 m. and 1.80 m. below G.L.).i) Average depth of invert 1.25 m. below G.L with 250 mm. thick brick work a) 150 mm to 400 mm dia having internal size (1500mmx750mm)

(18)Construction of special inspection chamber pit of size 900mm. X 600mm. (inside measurement) without shaft with 250mm. thick cement brick work (1:4) over 150mm. thick jhama cement conc. (1:4:8) bed over a layer of brick flat soling including providing 150mm. thick R.C.C. slab with ordinary cement concrete (mix 1:1.5:3) with 1% reinforcement over the chamber, brick on edge flooring with ordinary cement concrete (mix 1:2:4) in the invert with 20mm. thick cement plaster (1:4) finished fine with 1.5 mm. thick neat cement in the inside walls and invert including supplying, fitting and fixing 450mm. dia. (15 m.T.) heavy duty R.C.P.C. cover and frame (15 m.T. load bearing capacity) with ordinary cement concrete (mix 1:2:4) and C.I. steps (4 kg. each) including cutting hard crust, excavation, dewatering, back filling and removal of spoils but excluding shoring as per standard drawing of K.m.C. (depth of invert between 1.15m. to 1.80m. below G.L.) i) Average depth of invert 1.15 m. below G.L.

(19)Construction of special inspection pit with chamber of size 900mm. X 600mm. x 1500 mm (inside measurement) and 450mm X 450mm. square shaft (inside measurement) with 250mm. thick cement brick work (1:4) over 150mm. thick jhama cement conc. (1:4:8) bed over a layer of brick flat soling including providing 150mm. thick R.C.C. slab with ordinary cement concrete (mix 1:1.5:3) with 1% reinforcement over the chamber, brick on edge flooring with ordinary cement concrete(mix 1:2:4) in the invert with 20mm. thick cement plaster (1:4) finished fine with 1.5 mm. thick neat cement in the inside walls and invert including supplying, fitting and fixing R.C.P.C. cover and frame (15 m.T. load bearing capacity) with ordinary cement concrete (mix :1:2:4) and C.I. steps( 4 Kg. each) including cutting hard crust, excavation, dewatering, backfilling and removal of spoils but excluding shoring as per standard drawing of K.m.C. (depth of invert should not be less than 1.80m below G.L.)(ii) Addition and deduction of rate of special inspection chamber pit as per above item for each addition or reduction in depth of 100 mm. or part thereof.

24.Construction of manhole with chamber of size as given below as per requirement without shaft with cement brick work (1:4) over 150mm. thick jhama cement conc. (1:4:8) bed over a layer of brick flat soling including providing 150mm. thick R.C.C. slab with ordinary cement concrete (mix1:1.5:3) with reinforcement as per standard drawing over the chamber chamber, brick on edge flooring with ordinary cement concrete (mix 1:2:4) in the invert with 20mm. thick cement plastering (1:4) finished fine with neat cement 1.50 mm. thick in the inside walls and invert, including supplying, fitting and fixing R.C.P.C. manhole cover & frame (35 M.T. load bearing capacity) with ordinary cement concrete (mix 1:2:4) & C.I. steps (4kg. Each) including cutting hard crust, excavation, dewatering, back filling and removal of spoils but excluding shoring complete as per standard drawing .(Depth of invert shall be between 1.25 m. and 1.80 m. below G.L.).ii) Addition to rate of manhole chamber without shaft as per above item for each addition in depth of 150 mm. or part thereof. With 250 mm. thick brick work a) 150 mm to 400 mm dia having internal size (1500mmx750mm)

BUILDING WORKS (B) DISMANTLING, CUTTING CHASE, HOLES ETC 13. Removal of rubbish,earth etc. from the working site and disposal of the same beyond the compound, in conformity with the Municipal / Corporation Rules for such disposal, loading into truck and cleaning the site in all respect as per direction of Engineer in charge

22.Construction of gullypit 1100mmX625mm. inside measurement and depth of invert 1500mm. below G.L. with 250mm. thick cement brick work (1:4) over 100mm. thick jhama cement concrete (1:4:8) bed over a layer of brick flat soling including providing 150mm. thick R.C.C. slab with ordinary cement concrete (mix 1:1.5:3) with reinforcement as per standard drawing, brickon-edge flooring in the invert, 20 mm. thick cement plaster (1:4) finished fine with 1.5 mm. thick neat cement in the inside of walls and invert including supplying, fitting and fixing R.C.P.C. gully grid (15-M.T.load bearing capacity) and 225 mm. dia. C.I. Syphone including cutting hard crust, excavation, dewatering, back filling and removal of spoils as per standard drawing

Sub Total

GST 18%

CESS 1%