CLEANING AND REPAIR TO SEWAGE DISPOSAL DRAINS MANHOLE COVERS DRAIN COVERAGE PATH AND HARDSTANDING AT BMC UNDER GE (CENTRAL) KOLKATA

Amount

Demolition of Cement Concrete (un-reinforced) in Ground Floors and Pavings not exc. 150mm thickness (above or below Ground Level), complete all as specified and as directed.

Demolition of Brick Work built in Cement Mortar including all Quoins, Arches, Pillars, etc. of any descriptions, complete all as specified and as directed.

Dismantling Reinforced Cement Concrete of any description and in any Position not otherwise specifically provided for, complete all as specified and as directed.

Dismantling Wrought Iron or Mild Steel Work, viz. MS Flat Iron (Wind Tie) and Similar Work including MS Bolts, Nuts, etc., complete all as specified and as directed.

Taking down Cement Plaster of any description on Brick Walls, Concrete Surfaces including racking out joints, hacking for key, scrubbing down with Water, remove dust, debries/ rubbish, etc., complete all as specified and as directed.

Dismantling stone slab and tiles of any description or thickness in floors, aprons etc laid dry or laid dry or pointed complete all as specified and as directed.

Demolition and breaking of drain pipe (salt glazed wire, AC or reinforced concrete) set in cement mortar for 150mm dia pipe complete all as specified and as direceted.

Demolition and breaking of drain pipe (salt glazed wire, AC or reinforced concrete) set in cement mortar for 200mm dia pipe complete all as specified and as direceted.

Dismantling of cast iron,PVC or reinforced concrete drain pipes, jointed in cement mortar and taking out of trenches of 100 mm internal dia complete all as specified and as direceted.

Dismantling of cast iron,PVC or reinforced concrete drain pipes, jointed in cement mortar and taking out of trenches of 150 mm internal dia complete all as specified and as direceted.

Dismantling of cast iron,PVC or reinforced concrete drain pipes, jointed in cement mortar and taking out of trenches of 75 mm internal dia complete all as specified and as direceted.

Excavation in trenches not exc. 1.5 Metre wide and not exc. 1.50 Metre in depth for foundation etc. or for shafts, wells, cess pits, manholes, pier holes etc. not exc. 10 Sqm on plan and not exc. 1.50 Metre in depth and getting out as in Soft/Loose Soil, complete all as specified and as directed.

All as per Item No.11 here in before but Add to item 12 above for each additional 1.5m or part thereof in depth beyond the first 1.5 m complete all as specified and as directed.

Returning, Filling in, including Spreading, Levelling, Watering and Well Ramming in Layers not exc. 25 Cm as in Soft/Loose Soil, complete all as specified and as directed.

Removing excavated Material (Soil) not exc. 50.00 Metre and depositing where directed at a level not exc. 1.50 Metre above the starting point, complete all as specified and as directed.

M&L Plain Cement Concrete type B-0, (1:2:4) (12.5mm graded crushed stone aggregate) as in Coping ,benching including form work and finishing all exposed faces of cement concrete complete all as specified and as directed.

M&L Plain Cement Concrete type D2 (1:4:8) using 40 mm graded aggregate as in Foundation, Filling and Mass Concrete, complete all as specified and as directed.

M&L Pre-cast Reinforced Cement Concrete type B1(1:2:4) using 20 mm graded crushed stone aggregate) as in Cover Slab of Man Holes, Septic Tanks, etc., set in Cement Mortar 1:4 including necessary forms, moulds, etc., complete all as specified and as directed. NOTE : Reinforcement shall be measured and paid separately under relevant Item.

M&L Brickwork with fly ash bricks straight or curved on plan exc 6 m mean radius built in Cement Mortar 1:6, complete all as specified and as directed.

M&L TMT Bars 10 mm dia and over, cut to length, bent to shape required including crank-ing, bending and binding with and including Mild Steel Wire (annealed) not less than 0.90 mm, complete all as specified and as directed.

M&L Framed Work such as Grills, Gratings, etc. with ends of Bars shouldered and/or riveted, or forged into Spikes; Framed Guard Bars; Barred Iron Doors; Ladders; Framed Balusters; Walk Ways; Railings; Framework of Water Tanks and Similar Work, conforming to Fe-290, Gde-E-165, complete all as speci-fied and as directed.

M&L Cement Concrete type C2 (1:3:6) using 40mm graded crushed stone aggregate 100mm thick as in sub-base, finished Concrete Surfaces Even and fair without using Extra Cement, complete all as specified and as directed.

M&L 150 mm thick, plain cement concrete 1:4:8, type D-2 (using 40mm graded stone aggregate) as in sub base laid in alternate Bays, finished Concrete Surfaces Even and Fair without using Extra Cement, complete all as specified and as directed.

M&L Pre polished Chequered cement concrete tiles of size 400mm x 400mm x25mm thick, with grey cement and no pigment, jointed in neat cemnt slurry and pointed in white or coloured cement to match over and including 20 mm thick screed bed in cement mortar 1:6 including taking down unserviceable tiles complete all as specified and directed.

Providing and laying 60mm thick factory made chamfered edge cement concrete paver block of M-35 grade with approved colour, design & pattern as in footparth, parks,lawns, drive ways or light traffic parking etc.,of required strength, thickness & size/shape, made by table vibratory method using PU mould, laid in required colour & pattern over and including 50mm thick compacted bed of fine sand, compacting and proper bedding/ laying of inter locking paver blocks into the sand bedding layer through vibratory compaction by using plate vibrator, filling the joints with sand and cutting of paver blocks as per required size and pattern, finishing and sweeping extra sand; complete all as pecified and as directed.

M&L Rendering 20mm thick in Cement Mortar on fair faces of brick work or concrete surface of wall in two layer, first layer 10 mm thick in cement morter (1:4) and top layer 10mm thick in cement morter (1:4) using water proofing compound and finishing the surface even and smooth without using extra cement including necessary scafolding and saftey measures complete all as specified and as directed. . (NOTE:-WPC shall be measured and paid separately)

"Supply only" liquid water proofing compound (ISI marked) complete all as specified and directed.

M&L 150mm bore Reinforced concrete RCC hume pipes, class NP3 laid and jointed complete with collars complete all as directed by Engr-in-Charge

M&L 200mm bore Reinforced concrete RCC hume pipes, class NP3, laid and jointed complete with collars complete all as directed by Engr-in-Charge

M&L Cement Concrete type C2 , 1:3:6 (40mm graded aggregate) as in Concrete bed to salt-glazed stoneware drain pipes of internal dia 150mm, including packing under and haunching against the sides of pipes after they are laid and tested, complete all as specified and as directed.

M&L Cement Concrete type C2 , 1:3:6 (40mm graded aggregate) as in Concrete bed to salt-glazed stoneware drain pipes of internal dia 150mm, including packing under and haunching against the sides of pipes after they are laid and tested, complete all as specified and as directed.

S&F PVC (SWR) Soil, Waste and Ventilating Pipe 110mm bore (dia), single socketed,type 'B' in any length with Rubber Ring Joints fixed to Walls as in repair complete all as specified and as directed.

S&F PVC (SWR) Soil, Waste and Ventilating Pipe 75mm bore (dia), single socketed, type 'B' in any length with Rubber Ring Joints fixed to Walls as in repaircomplete all as specified and as directed.

S&F PVC (SWR) Soil, Waste and Ventilating Pipe 160mm bore (dia), single socketed,type 'B' in any length with Rubber Ring Joints fixed to Walls as in repair complete all as specified and as directed.

S&F 75 mm bore PVC (SWR) branch piece,double ( equal or unequal), ordinary or inverted ( spigot or socketed type) or with parallel branches or fitted with oval acces door complete all as specified and as directed.

S&F 110 mm bore PVC (SWR) branch piece, single ( equal or unequal), ordinary or inverted ( spigot or socketed type) or with parallel branches or fitted with oval acces door complete all as specified and as directed.

S&F 110 mm bore PVC (SWR) branch piece,double ( equal or unequal), ordinary or inverted ( spigot or socketed type) or with parallel branches or fitted with oval acces door complete all as specified and as directed.

S&F 75 mm bore PVC (SWR) cowl Jointing to Pipe with Solvent Cement, complete all as specified and as directed.

S&F PVC (SWR) Bend 110mm bore (dia), any type, equal or unequal with Rubber Ring Joints fixed to Walls, complete all as specified and as directed.

S&F PVC (SWR) Bend 75mm bore (dia), any type, equal or unequal with Rubber Ring Joints fixed to Walls, complete all as specified and as directed.

S&F PVC (SWR) Nahani/Floor Trap 75mm bore (dia) Outlet, Plain with Grating and Jointing with Solvent Cement, complete all as specified and as directed.

S&F Cast Iron Floor Trap with 100mm bore (dia) Outlet, with Gratings including jointing to Waste Pipe and fixed in Cement Concrete 1:2:4 (20mm graded aggregate), complete all as specified and as directed.

S&F Stack clamps out of 50mm by 5mm flat iron and 16mm dia round iron stays including bolts and nuts and securing ends of stays to wall or roof Bore in pipe in 75mm to 150mm complete all as specified and directed.

M&L Cutting into existing manholes for connecting new drains, making good to pipe and rendering, cutting out existing benching for and forming branch channel (1/2 round or 3/4 round section) in cement concrete 1:2:4 type B1, smooth finished and reforming benching as required for 150 mm bore of pipe complete all as specifieed and directed.

Lifting of cover and desilting of blocked manhole, of any size and depth by mechanised suction machine and removal of sludges in water sealed container to a distance outside residential area and washing with adequate quantity of water and refixing the cover in the same location and cutting of bushes all around the manholes up to 1.0 m radius including burring the sludge in a pit spreading bleaching powder with sufficient quantity surrounding it and sealing the pit with fine sand and spreading bleaching powder surrounding the pit etc complete all as specified and as directed by Engr-in-Charge. Note:-(i) Cost of earth work in excavation required for digging the borrow pit and burring the the waste materials / sludge in the borrow pit and sealing the pit with fine sand & spreading bleaching powder shall deemed to be included in the rate quoted. (ii) Any damged done by the Contractor during cleaning shall be make good by the Contractor at his own cost upto the satisfaction of Enginner-in-Charge.

Cleaning of blocked kitchen trap / nahani trap /gully trap/ Water closet of any type / pattern upto 1st manhole and making the drain channel fully functional by flushing with sufficient quantity of water to entire satisfaction of Engineer-in-Charge including cleaning up to 1st manhole and removing the waste materials / sludge etc to a distance outside residential area and burying the same in a pit and spreading bleaching powder surrounding the area with sufficient quantiuty complete all as specified and as directed. Note:-(i) Cost of earth work in excavation required for digging the borrow pit and burrying the the waste materials / sludge in the borrow pit and sealing the pit with fine sand shall deemed to be included in the rate quited. (ii) Any damged done by the Contractor during cleaning shall be make good by the Contractor at his own cost upto the satisfaction of Enginner-in-Charge.

Taking out inspection door from Soil/waste pipe band/tee 'Y' junction and removing blockage materials from it for cleaning of blockage and finally re-fixing the door complete all as specified and as directed upto 4 th storey bldg including necessary scaffolding etc complete all as directed by Engineer-in-Charge.. Note:- Unit rate quoted by tenderer shall included for use of all scaffolding, trestles, ladders, cradles etc, hoisting, lowering and protective measures etc up to twelve storeys height of bldgs.

Cleaning and removing all debris / vegetation from RCC roof surfaces of any height and cleaning the mouth of rain water pipe and removal of materials to a distance outside residential area complete all as specified and as directed by Engr-in-Charge.

Cleaning of under rain water / waste pipe/vent/sewer pipe of any dia by rodding / bamboo split including removing and refixing of eye cover in existing position and taking out waste and foreign materials and flushing with sufficient quantity of water etc. and cutting of the bushes both side of sewage line upto 0.5 mtr each side and removing the same to a distance not exceeding 50m where directed, complete all as directed by the Engineer-in-Charge. Note:-(i) Once cleaned the sewage lines, the Contractor shall maintain the lines functional upto the date of Completion at his own cost. (ii) Any damged done by the Contractor during cleaning shall be make good by the Contractor at his own cost upto the satisfaction of Engineer-in-Charge.

Cleaning of existing covered or uncovered drains, hume of any section and depth by removing mud, sludge, rubbish and other foreign materials from existing storm water drain / covered drain, static tanks etc, removal of sludges in water sealed container to a distance outside residential area and flushing with adequate quantity of water complete all as specified and as directed by Engr-in-Charge. Note:-(i) Any damged done by the Contractor during cleaning shall be make good by the Contractor at his own cost upto the satisfaction of Engineer-in-Charge. (ii) Cost of pit and covered with soil for disposal of waste material shall deemed to be included in the quoted rate.

m d yasin

PINKY CO.