CERTAIN REPAIR/CLEANING OF MANHOLES SEWAGE LINE AND ALLIED WORKS AT HASTINGS AREA UNDER GE (CENTRAL) KOLKATA

Amount

Demolition of Cement Concrete (un-reinforced) of any description and in any position not otherwise specifically provided for 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 fencing wire mesh, any type complete all as specified and as directed.

Dismantling posts or struts (wood, steel or R.C.C.) any section, including taking out embedded portion and making good disturbed ground 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.

Dismantling Plain or Corrugated Steel Sheeting any gauge, thickness, including nainital or similar roof coverings/sunshade, complete all as specified and as directed.

Dismantling Floor, Hearth or Wall Tiling including Cement Mortar Bedding (but not backing), and removing rubbish off the Premises, 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.

Taking down soil pipe/ rainwater pipes (any size or pattern ) including all fitings heads shoes bends swan -necks etc including cleaning or refixing or removal to store (measured over all fixed along the centre line over fitting and ( accessories) 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.

Dismantling 100mm bore Cast iron pipe, jointed in cement mortar in foul places including necessary scaffolding upto four story height of building complete all as specified and as directed.

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.

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 C2 (1:3:6) using 40 mm graded aggregate) in Foundation, Filling and Mass Concrete (bed and side of gully trap), 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 Uprooting of tree from walls of bldgs up to extended root and spraying of acid of required quantity complete from any location of Bldg up to 4 storied and making good disturbed surfaces with cement mortar (1:4) or cement concrete type C1(1:3:6) using 20mm graded aggregate including necessary scafolding complete for tree of girth up to 5cm to10 cm complete all as specified and as directed.

M&L Plain Cement Concrete type B-1, (1:3:6) (20mm graded crushed stone aggregate) as in Coping ,block benching,channeling slightly rounded or chamfered angle and throating including form work and finishing all exposed faces of cement concrete complete all as specified and as directed.

M&L Plain cement concrete 1:2:4 type B1 (using 20 mm graded crushed stone aggregates) as in bed block for embedding angle iron fencing post. complete all as specified and as directed.

M&L Plain Cement Concrete type B1 (1:2:4), using 20mm graded crushed stone aggregate as in surface channels and drains complete all as specified and as directed.

Material and labour Applying first coat of cement slurry in sunken floor @ 0.488 Kg/Sqm mixed with acrylic based polymer modified cementitous composit compound @0.253 Kg/Sqm, this layer will be allowed to air cure for 4 hours & second layer of cement slurry @0.242 Kg/Sqm mixed with acrylic based polymer modified cemntitious compound @ 0.126 Kg/Sqm this layer will be allowed to air cure for 4 hours followed with water curing for 48 hrs & applying 200 micron thick polythene film paste with help of adhesive and same shall be provided over treatment complete all as specified and directed.

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.

Labour only Brick Work using old bricks obtained from demolition, Straight or Curved on Plan exc. 6.0 Metre mean Radius, built in Cement Mortar 1:6, complete all as specified and as directed.

M&L Brick Work with Sub-Class ‘B’ Bricks Half-Brick thick, Old Size, built in Cement Mortar 1:4, Straight or Curved on Plan to any Radius, complete all as specified and as directed.

S&F TMT bars 8 mm dia cut to length, bent to shape required, including cranking, bending spirally for hooping and binding with mild steel wire (annealed) not less than 0.9mm dia or securing with clips complete all as specified and as directed.

S&F Mild steel angle iron as in posts and struts in fencing including cutting tops to shape as directed, drilling holes, notching for wire, etc.; flat iron fillets (for securing wire mesh etc.) including all necessary drilling, bolting or riveting, etc., and similar work conforming to Fe-290 Gde E-165 complete all as specified and directed.

M&L Framed work as in doors or gates of angles or other section with gusset plates, rails, braces etc complete drilled for fixing of steel sheeting or other covering, doors, etc to be prepared for hanging or sliding with and including either hooks and hinges or steel hanging door fittings(exclusive of steel sheeting or other covering running rails and guides) and hanging also fastening and fixing complete Fe 410 -w(Gde E-250) quality B) complete all as specified and as directed.

M&L Mild steel screw bolts (machine made) with hexagonal or square heads at one end and screwed the other, or screwed both ends, each screwed end to be fitted with washers and one hexagonal or square nut of 11 to 15mm dia, and 5cm to 10cm long complete all as specified and directed.

S&F Galvanised 2 strand, steel barbed wire 2.24 mm dia barbed with 2mm dia barbs at 75mm spacing and straining and fixing to any type of standard rails straining bolts, including securing or tying at crossing with and provision of galvanised mild steel wire staples or steel pins etc (each line wire to be measured) as in repair.complete all as specified and as directed.

Fixing only PVC coated chain link fencing mild steel galvanised 3.00mm dia (minimum weigth 3Kg/Sqm) of wire and spacing 75mm x 75mm including line wires to any standards, rails and straining bolts including provision of binding wire complete all as specified and directed. Note :- Line wire ,binding wire and bolts/nuts shall be measured and paid separetaly under relevant item of BOQ

Supply only PVC coated chain link fencing mild steel galvanised 3.00mm dia (minimum weigth 3Kg/Sqm) of wire and spacing 75mm x 75mm including 8mm dia round bar as in line wires to any standards, rails and straining bolts including provision of binding wire complete all as specified and directed.

M&L Mild Steel Plain Black Sheet 1.6mm thick in Hearths, covering to Door Shutters, covering to steel gates, etc. cut to size edges beaded if directed, holes punched including round headed Screws Clout screws including bending, turning up, mitred angles, stopped ends, outlets, etc. as required, as in repair complete all as specified and as directed.

S&F Pre-painted colour galvalume aluminium zinc coating GI based corrugated steel sheet 0.50mm thick of any colour having tensile strength of 550 Mpa as in roof covering/ cladding to wall, fixed with self tapping screws complete all as specified and as directed.

S&F Pre-painted colour galvalume aluminium zinc coating GI based corrugated steel sheet 0.50mm thick of any colour having tensile strength of 550 Mpa as in roof covering/ cladding to wall /sunshade etc, fixed with self tapping screws complete all as specified and as directed. Note :- Existing Galvalume sheet shall be reused, obtain from dismantling item here-in-before.

M&L Cement Concrete type C2(1:3:6) using 40mm graded crushed stone aggregate 75mm thick as in Plinth Protection, etc. laid in alternate Bays, finished Concrete Surfaces Even and Smooth without using Extra Cement, complete all as specified and as directed.

M&L 75 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 Smooth without using Extra Cement, complete all as specified and as directed.

M&L Pre polished Chequered cement concrete tiles of size 300mm x300mm 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 15 mm thick screed bed in cement mortar 1:6 including taking down unserviceable tiles complete all as specified and directed.

M&L Granite (of any type) work 20mm thick (table rubbed and polished) in steps, jambs, pillars, window-cills, cooking platforms and like in cement mortar (1:4) over 15mm thick screed bed/bedding layer in CM 1:4 including pointing in white cement (1:2) using marble dust with admixture of pigment to match with shade of granite including taking down stone slab complete all as specified and directed.

M&L Coloured non skid ceramics tiles, joint free 7 to 8mm thick (square/ rectangular), area of each tile exc 0.11 sqm but not exc 0.18 sqm as in floors over and including 15mm thick screed bed/bedding layer in CM 1:6 set and jointed in neat cement slurry and pointed in white/coloured cement to match the existing floor complete all as specified and as directed.

M&L Glazed Ceramic Coloured Tile 350x250 x 7.0mm /450x350x7mm thick on Vertical Surfaces such as Skirting, Dados, Risers to Steps, etc., Set and Jointed in Neat Cement Slurry and Pointed in White or Coloured Cement to match the Shade of the Tiles over and including 10mm thick backing layer in cement mortar (1:4) complete all as specified and as directed.

M&L Rendering 15mm thick in Cement Mortar 1:6 on Brick Walls or on Concrete Surfaces, finishing plastered surfaces Even and fair without using Extra Cement complete all as specified 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 Preparing new Surfaces of Ceiling and applying Three Coats of White Wash, complete all as specified and as directed.

M&L Preparing new plastered surfaces of wall and applying Two Coats of Distemper Oil Emulsion over a coat of primer and applied over 3mm thick BIRLA/JK water proof wall care putty including rubbing with emmery paper to make wall surface smooth and even complete all as specified and directed.

M&L Preparing new Surfaces of Walls and applying Two Coats of Cement Based Paint over a coat of alkali resistant primer complete all as specified and as directed.

M&L Preparing new Steel or Iron Surfaces of any description, over 10 Cm width or girth and applying Two Coats of Synthetic Enamel Paint (First quality) over a coat of Red Oxide/ Zinc Chrome Primer, complete all as specified and as directed.

M&L Salt-Glazed Stoneware Drain Pipes of Internal dia 150mm Grade ‘A’, laid in concrete bed at trenches, jointed in Cement Mortar 1:1 and tested, complete all as specified and as directed. NOTE : Earthwork shall be Measured and Paid separately under relevant Item(s).

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 450mm dia 50mm thick RCPC (Reinforced Cement Polymer Concrete) Man hole cover with frame of 540mm dia, 100mm thick of 3MT capacity fixed in proper position as in repair complete all as specified and as directed.

S&F RCPC (Reinforced Cement Polymer Concrete) drain cover of size 750mm x 450m x 75mm thick of 3MT capacity fixed in proper position as in repair complete all as specified and as directed.

S&F White PVC Flushing Cistern 10 Litre capacity, Low Level Valve Less, Syphonic Action type with Inlet, Ball Valve, Float and Handle including Cutting and pinning in Ends, making good disturbed Surfaces in Cement Mortar 1:3 and fixed including taking down/out unserviceable Flush -ing Cistern and connected Items, complete all as specified and as directed. Make : Cera cat part No CONGO B1010109/Parrywarre cat no-C-8090 or equivalent model as specified in Particular Specification here in after.

S&F Vitreous China Colour Wash down Water Closet Pan (Pedestal Pattern) with "p" or "s" trap front or back inlet including fixing Bolts with and excluding 10 litre capacity low level Flushing Cistern matching with water closet colour with inlet ball valve float handle and providing 32mm dia PVC flush pipe including plastic water closet seat with flat botton cover (coloured) fixed with mild steel chromium plated or aluminium hinging device and making good disturbed Surfaces in Cement Mortar 1:3 and fixed including Taking down/out unserviceable WC Pan and connected Items, complete all as specified and as directed. Make - Parryware Model No-C0297,E-8090 or equivalent make as specified in the particular specfication.

Supply and fix in repairs Vitreous China squatting pan of ‘Orissa pattern’, size 580 mm x 440mm (white) with ‘P’ or ‘S’ trap, front or back inlet and foot rests, any pattern complete including provision of PCC bedding and connection to trap, and to flushing pipe, antisyphonage pipe, etc. complete including making good to floor all as specified and directed by the Engr-in-Charge. Make : Hindware cat no-20042 ,Parryware Cat No C0123 or equivalent model as specified in list of approved makes given here in after in Particuler Specification.

S&F Cascade type (coloured) floor mounted water closet with low level flushing cistern coloured with floor trap, PVC coloured seat cover and connecting pipe etc and making all necessary connections etc as in repair complete all as specified and as directed. Make : Parryware Aquarius, Code No. C-0235, C-0715 C-2016, C-8080 & C-8071

S&F Health faucet with chomium plated with flexible cord fixed on wall screwed down for iron pipes,including necessary fittings etc as in repair complete all as specified and as directed. Make : Jaguar Cat Pt No. ALD-573) or equivalent make as specified in the particular specfication.

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

Refixing of old serviceable PVC (SWR) pipe, 110mm bore (dia), single socketed, in any length with Rubber Ring Joints fixed to Walls, 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) Junction 110mm bore (dia), Single (Single T) equal or unequal and Jointing with Solvent Cement, complete all as specified and as directed.

S&F PVC (SWR) Branch Pieces 110mm bore (dia), Single (Single Y) equal or unequal with Access Door, etc. and Jointing with Solvent Cement, complete all as specified and as directed.

Taking down existing broken inspection eye cover from soil/waste/rain water pipe from any position and supply and fix new Cast Iron eye cover with rubber washer and nut bolts for 100/75 mm dia pipe including necessary scaffolding and safety measurers complete all as specified and directed.

S&F 100mm bore cast iron soil waste and vent pipes in any length with or without ears with cement joint fixed to walls including pipe nails, distance pieces, plugs holder bats etc.including scafolding complete all as specified and as directed.

Refixing Old serviceable 100mm bore cast iron soil, waste and vent pipes in any length with or without ears, with cement joints, fixed to walls or floors and disturbed portion of the wall making good with cement concrete in (1:2:4) including distance pieces, plugs, holder bats up to four story height of building with scaffolding etc cmplete all as specified and as directed.

S&F Cast Iron Plain Bend 100mm bore (dia), any dia with duck's foot or heel rest and fitted with Oval Access Doors including Jointing with Cement Mortar 1:1, complete all as specified and as directed.

S&F Cast Iron Branch Piece 100mm bore (dia) single T (equal or unequal), ordinary or inverted (spigot or socket type) with duck's foot or heel rest and fitted with Oval Access Doors including Jointing with Cement Mortar 1:1, complete all as specified and as directed.

S&F Cast Iron Nahani/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.

Cleaning of blocked kitchen trap / nahani trap / floor trap/ Water closet of any type / pattern with vaccum pump 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 of 1st manhole and removing the waste materials / sludge etc to a distance outside residential area nexc 50m and buring the same in a pit and spreading bleaching powder surrounding the area @ 1Kg/ Sqm and sealing the top with fine sand of suitable depth complete all as specified and as directed. Note:-(i) Cost of earth work in excavation required for digging the borrow pit and buring the the waste materials / sludge in the borrow pit and sealing the pit with fine sand and spreadind of 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 Engineer-in-Charge.

Cleaning of manhole size 900 mmx900mm of depth not exc 1.50 metre each, by taking out accumulated sludge, silt, mud etc and removing the same at a distance not exceeding 50 metre (where directed), complete as directed by the Engineer-in-Charge. Note:-(i) Disposal of sludge obtained shall be disposal of in pit made by contractor and shall be covered with soil.. (ii) Rate of disposal of sludge are inclusive in quoted rates. (iii) Cost of pit shall be deemed to be included in the item rate quoted.

Cleaning of manhole size 1200 mm x 1200mm of depth not exc 1.50 metre each, by taking out accumulated sludge, silt, mud etc and removing the same at a distance not exceeding 50 metre (where directed), complete as directed by the Engineer-in-Charge. Note:-(i) Disposal of sludge obtained shall be disposal of in pit made by contractor and shall be covered with soil.. (ii) Rate of disposal of sludge are inclusive in quoted rates. (iii) Cost of pit shall be deemed to be included in the item rate quoted.

Cleaning of underground waste/ waste pipe /existing uncovered (partly / semi or fully filled up) drain, (cleaning length n exc. 30m from manhole to manhole or manhole to septic tank) of any opening width by rodding / bamboo split including removing and taking out waste and foreign materials taking out accumulated silt, mud, earth, rubbish, vegetation etc from the drain and flushing with sufficient quantity of water etc. and cutting of the bushes both side of drain upto 0.5 mtr each side and and removing the same to a distance complete all as specified and as directed by the Engineer-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.

Cleaning of under rain water / waste 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 all debris / vegitation over roof surfaces of accessible or unaccessible roof portion upto any height and the mouth of rain water pipe and around the tanks area and removal of materials outside the MOD land including necessary scaffolding and safety measures complete all as directed by Engineer-in-Charge.

De-sludging / cleaning completely of liquid / sticky / hard sludge by pumping mechnically from inside of septic tank/soak well/sump well of any capacity and removal of sludge to a distance exceeding 50 meter but nexc 100m and depositing to excavated pit of appropriate size as and when required (all as directed) and filled up with earth ( not exceeding 30 cm thick in each layer), and spreading of bleaching powder complete all as specified and as directed by the Engineer-in-Charge. Note : (I) Earth to be filled over the pit shall be spread after sufficient absorption of liquid / sticky / hard sludge, and size of pit shall be made accordingly. (II) To avoid any health hazard or spreading of any foul gas, sufficient quantity of bleaching powder shall be spread as directed by the Engineer-in-Charge. Cost of spreading bleaching powder and excavating the earth pit and subsequent filling of earth etc shall be included in the quoted rate against the item.

Cleaning of existing 100mm dia / 150mm dia sewage line upto 1.50m depth from ground level using jute or PVC nylon rope with knot at one end and other end free passed through the line or by rodding & removing all liquid / semi liquid / solid sludge etc including dewatering, desilting and well flushing the line with water and testing on completion complete 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 200mm dia sewage line upto 1.50m depth from ground level using jute or PVC nylon rope with knot at one end and other end free passed through the line or by rodding & removing all liquid / semi liquid / solid sludge etc including dewatering, desilting and well flushing the line with water and testing on completion complete 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 300mm dia sewage line upto 1.50m depth from ground level using jute or PVC nylon rope with knot at one end and other end free passed through the line or by rodding & removing all liquid / semi liquid / solid sludge etc including dewatering, desilting and well flushing the line with water and testing on completion complete 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.

Aditya Construction

M/S BISWANATH BHATTACHARJEE

M/s UNIVERSAL

MARUTI ENTERPRISES

NICE INFOTECH