CERTAIN REPAIRS/CLEANING OF MANHOLES SEWAGE LINE AND ALLIED WORKS AT STRAND LINE AREA 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 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 / sunshades, 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 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 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 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), coping and filleting 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 etc 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.

M&L 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.

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.

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 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.

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 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 not exc 5cm long complete all as specified and 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.

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.

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.

M&L Cement Concrete 1:3:6 (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, making impression or expanded metal,whilst the concrete is green,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 bases 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.

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 300x200 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 Granite (of any type) Work (Table rubbed and polished) 18 to 20 mm thick, in Steps, Cooking Platforms and like, Set in Screed bed of 20mm thick in Cement Mortar 1:4 including Pointing in White Cement 1:2 using Marble Dust with admixture of Pigment to match with Shade of Granite including Cutting and Polishing including half round edges, including taking dwon old one 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 complete all as specified and as directed. . (NOTE:-WPC shall be measured and paid separately)

M&L Rendering 5.0mm thick in Cement Mortar 1:3 on Concrete Surfaces of Ceiling / Chajjas etc. finishing Plastered Surfaces Even and Smooth, without using Extra Cement. 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.

"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 Surfaces of Walls 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 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 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,E8090 or equivalent make as specified in the particular specfication.

S&F 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 including Taking down/out unserviceable WC Pan and connected Item scomplete 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 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 - Parryware, Model No- E8090 or equivalent make as specified in the particular specfication.

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 Type 'B'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)/RWP pipe, 110mm bore (dia), single socketed, in any length with Rubber Ring Joints fixed to Walls/floor 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) Branch Pieces 110mm bore (dia), Single (Single Y) equal or unequal and Jointing with Solvent Cement, 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 Nahani trap / Floor trap with grating for 100mm dia outlet pipe, including making good distrubed area/surfaces with cement concrete type B0 (1:2:4) using 12.5mm coarse aggregate or cement mortar 1:3 etc as in repair complete all as specified and as directed.

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 bleeching 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 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 scaffolding 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 anyheight of building with scaffolding etc cmplete all as specified and as directed.

S&F Cast Iron Bend 100mm bore (dia), any radius, Disminishing Pieces or Tapers (Large Bore measured) and fitted with Oval Access Doors including Jointing with Cement Mortar 1:1, as in repair complete all as specified and as directed.

S&F Cast Iron Branch Piece 100mm bore (dia) single (equal or unequal), ordinary or inverted (spigot or socket type) with Parallel Branches fitted with Oval Access Door including Jointing with Cement Mortar 1:1, as in repair complete all as specified and as directed.

Lifting of cover and desilting of blocked manhole size 900 mmx900mm of depth not exc 1.50 metre each, by taking out accumulated sludge, silt, mud etc in water sealed container and removing the same outside residensial area (where directed) and washing with adequate quantity of water and refixing the cover in the same location complete as directed by the Engineer-in-Charge. Note:-(i) Disposal of sludge obtained shall be disposal of in pit made by contractor and spreading of bleaching powder @ 1.00 kg /sqm and covered with fine sand complete all as specified and as directed by the Engineer-in-Charge. (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) 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 spreading of bleaching powder @ 1.00 kg /sqm and covered with fine sand complete all as specified and as directed by the Engineer-in-Charge. (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. (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 existing covered (partly / semi or fully filled up) drain, of any opening width and depth by removing and refixing of cover-slab, 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 nexc 50m 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. (iii) Cost of pit and covered with soil for disposal of waste material shall deemed to be included in the quoted rate.

Cleaning of existing uncovered (partly / semi or fully filled up) drain, of any opening width and depth , 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 nexc 50m 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. (iii) Cost of pit and covered with soil for disposal of waste material shall deemed to be included in the quoted rate.

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 pipe 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 pipe 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. (iii) Cost of pit and covered with soil for disposal of waste material shall deemed to be included in the quoted rate.

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.

Cleaning of existing 100mm 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 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.

Up rooting 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 5 to 10 cm.complete all as specified and as directed.

ESS PEE UDYOG

M/S BISWANATH BHATTACHARJEE

SK CONSTRUCTION SYNDICATE & ENGG CO

CIVCON

NIRMAL DAS AND CO.