REPAIR/ REPLACEMENT AND CLEANING OF THE SEWAGE LINE AND MANHOLE INCLUDING CERTAIN REPAIR AT INS NETAJI SUBHAS, DUMAYUN AVENUE, DAMODAR COMPLEX, MEGHANATH BUILDING UNDER GE (I) (CGN) KOLKATA

Amount

Dismantling of wrought or mild steel work of any description such as in ladder work, bracing/supporting agle iron, roof top MS sheets, railings etc.

S & F hot rolled medium and high tensile structural steel of grade E 250 quality B conforming to IS 2062: 2011 as in framed work as in doors or gates of angle 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 all as specified and as directed.

S & F hot rolled medium and high tensile structural steel of grade E 250 quality A conforming to IS 2062: 2011 as in roof trusses (framed), trussed, purlins, crane gantries, rails and fastenings and heavy bracket framing (Beam, tee, angle, channel or flat sections) including distance pieces, cleats etc. complete all as specified and as directed.

S & F hot rolled medium and high tensile structural steel of grade E165 as per IS 15911: 2010 as in framed work such as grills, grating, etc., with ends of bars of shouldered and/or riveted, or forged into spikes, framed guard bars; barred iron doors; ladders; framed balusters; walk ways; railings; framework water tanks and similar work complete all as specified and directed by Engineer-in-charge.

Preparation of newly or previously untreated steel surface of any description over 10 cm width or girth and applying two coats of synthetic enamel paint over a coat of red oxide zinc chrome primer complete all as specified and as directed by Engineer-in-Charge

Demolition of brick work or stone/boulder masonry, built in cement mortar including all quoins, arches, pillars, etc. complete all as specified and directed by Engineer in charge.

M & L for brick work with fly ash bricks of class designation 7.5 as per IS 12894: 2002, straight or curved on plan exceeding 6 m mean radius built in cement mortar 1:6 complete all as specified and as directed.

Taking down cement plaster on stone/brick/concrete surfaces including racking out joint, hacking for key, scrubbing down with water complete all as specified and as directed.

Material and labour for plastering 20 mm thick on fair faces of brick work or concrete surfaces (on vertical surfaces) in cement mortar 1:6 with integral water proofing compound finished even and fair complete all as specified and as directed. Note: - Water proofing compound shall be measured and paid for separately.

M & L for preparing new plaster surfaces walls including chajjas, facias etc. and applying two coat of weather proof acrylic exterior paint (100% Acrylic) over a coat of primer including scaffolding, trestles, ladders, cradles and necessary safety measures complete all as specified and as directed.

Dismantling of plain or corrugated steel sheeting, any gauge, thickness including any pattern roof coverings complete all as specified and as directed.

M & L for pre-painted hot-dip aluminium-zinc alloy metallic coated corrugated steel sheet, any pattern corresponding to IS 15965:2012 of durability class 3, atmospheric classification category 3, coating class AZ150, 0.50 mm thick, of an approved colour and having yield strength of 550 MPa as in roof covering fixed with self tapping screws as specified including necessary scaffolding and safety measures at any floor complete all as specified and as directed.

M & L for pre-painted hot-dip aluminium-zinc alloy metallic coated plain steel sheet as per IS 15965:2012 of durability class 3, atmospheric classification category 3, coating class AZ150, 0.50 mm thick, of an approved colour and having yield strength of 550 MPa as in ridge/ valley/ gutter fixed with self tapping screws as specified including necessary scaffolding and safety measures at any floor complete all as specified and as directed.

Taking down eaves gutters and rainwater pipes (any size or pattern), soil waste pipes (any size or pattern), including all fittings, heads, shoes, bends, swan-necks, etc., including cleaning or refixing or removal to Store or taken on schedule of credit (measured overall as fixed along the centre line over fittings and accessories) complete all as specified and as directed.

M & L for plain, galvanised, mild steel sheeting with grade of zinc coating 275, 0.80 mm thick in ridges, hips, valley gutters, drip and straight flashings (length and girth as fixed) complete all as specified and as directed.

S & F in repairs 2 mm thick glass fibre reinforced translucent plastics sheeting of any profile, diffusion classification I with two corrugations side lap fixed with coach screw and washer in roof, wall etc. complete all as specified and as directed.

Taking down of old GI barbed wire of any description complete all as specified and directed.

S & F galvanized steel barbed wire with two strands of line wire of dia 2.24 mm and barbed with point wire of dia 2 mm at 75 mm spacing straining and fixing to any type of standards, rails, straining bolts including securing or tying at crossings with and provision of galvanised iron binding wire, GI staples or steel pins, etc. complete all as specified and as directed (two strand of line wire will be measured as one unit).

M&L for cleaning of the PVC water storage tank of capacity 5000 litres by taking down the inlet and outlet pipes, rubbing down and removing all scale and dirt, mud, any other foreign material from tank and writing letter on PVC tank as TANK CLEANED ON _________ date, month, year and refixing the inlet and outlet complete all as specified and directed.

M&L for cleaning of the PVC water storage tank of capacity 1000 litres to 2000 litres by taking down the inlet and outlet pipes, rubbing down and removing all scale and dirt, mud, any other foreign material from tank and writing letter on PVC tank as TANK CLEANED ON _________ date, month, year and refixing the inlet and outlet complete all as specified and directed.

Demolition of cement concrete (unreinforced) in ground floors and paving not exceeding 15 cm thickness (below or above ground level)

M & L for cement concrete M10 (Nominal Mix) using 40 mm nominal size graded crushed stone aggregate 100 mm thick in sub base for laying tiles, pavings etc. complete all as specified and as directed.

M & L for chequered cement concrete tiles, cast in rubber mould, glossy finish of approved colour, general purpose, double layer, size 30 cm X 30 cm X 25 mm thick, with mixture of white and grey cement in equal proportions and pigments, set, jointed and pointed in neat cement slurry in floor including laying over 20 mm thick bedding of cement mortar(1:4) all as specified and as directed.

Dismantling of old MS seccon concertina coil of any description from RCC / MS fencing post complete all as specified and directed.

Supply and fix punched tape concertina coil made out of cold drawn unalloyed steel wires of dia 2.6 mm having minimum tensile strength of 1670 N per sqmm as per IS 4454 (Part- 1): 2001 with hot dip galvanized as per practice recommended in IS: 2629 and the coatings shall conform to heavily coated hard variety as per table I of IS: 4826 (weight of Zinc coating 230 gram per sqm minimum) and steel strip of size 19 mm X 0.5 mm with hardness of 137 to 187 VPN and zinc coating of 18 to 20 microns, minimum 610 mm dia of coil when closed, (9 Kg ± 5 %) weight of coil with 50 turns & 129 Nos clips (without handles and spikes) and minimum 580 mm dia when opened upto 6 metres, stretched to 6 metres for 50 turns during installations complete all as specified and as directed.

S & F in repairs cast iron, sand cast, socket and spigot, nominal dia 100 mm soil, waste and vent pipe as per IS 1729: 2002 in any length with cement joints, fixed to walls with steel holder bat clamps of approved design to 100 mm dia complete all as specified and as directed. (upto 4th storey)

S & F in repairs cast iron, sand cast, socket and spigot, nominal dia 100 mm soil, waste and vent pipe as per IS 1729: 2002 in any length with cement joints, fixed to walls with steel holder bat clamps of approved design to 100 mm dia complete all as specified and as directed. (upto 5th to 8th storey)

S & F in repairs cast iron, sand cast, socket and spigot, nominal dia 100 mm soil, waste and vent pipe as per IS 1729: 2002 in any length with cement joints, fixed to walls with steel holder bat clamps of approved design to 100 mm dia complete all as specified and as directed. (upto 9th to 12th storey)

S & F in repairs cast iron branch pieces, double (equal or unequal), ordinary or inverted (spigot or socket type) or with parallel branches without access door for soil, waste and vent pipes of nominal size 50 mm complete all as specified and as directed.

S & F in repairs cast iron branch pieces, single (equal or unequal), ordinary or inverted (spigot or socket type) or with parallel branches without access door for soil, waste and vent pipes of nominal size 50 mm complete all as specified and as directed.

Supply only integral water proofing compound.

Dismantling floor, hearth or wall tiling/ chequered tile including cement mortar bedding (but not backing), removing serviceable tiles to store and rubbish off the premises complete all as specified and as directed.

M & L for glazed, coloured ceramic digital wall tiles (group B III), 350 mm X 250 mm X 8 / 450 x 350 x 8 mm mm thick on vertical surfaces including 10 mm thick backing coat in cement mortar (1:4), set and jointed in neat cement slurry and pointed in epoxy mortar to match all as specified and directed.

Dismantling of defective interlocking paver block and keep aside paver block for reuse or taking in schedule of credit complete all as specified and as directed.

Providing and laying 60 mm thick factory made cement concrete interlocking paver block of M35 grade conforming to IS 15658-2006 made by block making machine with strong vibratory compaction, of approved size, design & shape, cast in rubber mould, glossy finish of approved colour, laid in required colour and pattern over and including 50 mm thick compacted bed of coarse sand, filling the joints with fine sand etc. all complete as per the direction of Engineer-in-charge.

M & L for cement concrete in foundation, filling and mass concrete in M15(Nominal Mix) using 40 mm nominal size graded crushed stone aggregate complete all as specified and as directed.

M & L for cement concrete in surface channels and drains in M15(Nominal Mix) using 40 mm nominal size graded crushed stone aggregate complete all as specified and as directed.

Excavating in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. or for cable laying or water supply pipes lines etc or not exceeding 10 sqm on plan and not exceeding 1.5 m in depth and getting out in soft/ loose soil complete all as specified and as directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25 cm in soft/ loose/ hard/ dense soil complete all as specified and as directed.

Removing excavated material (soils) not exceeding 50 m and depositing where directed at a level n exc. 1.5 m above the starting point

Demolition and breaking up drain pipes (Salt glazed ware, AC or reinforced concrete) of internal dia 100 mm, set in cement mortar complete all as specified and as directed.

Supplying and laying reinforced concrete pipes with collars, 200 mm internal diameter, class NP2, laid and jointed with stiff mixture of cement mortar (1:2) complete all as specified and as directed.

M & L for concrete bed to drain pipes of internal diameter 200 mm, in cement concrete M10(Nominal Mix) using 40 mm nominal size graded crushed stone aggregate including packing under and haunching against the sides of pipes complete all as specified and as directed.

M & L for concrete bed to drain pipes of internal diameter 150 mm, in cement concrete M10(Nominal Mix) using 40 mm nominal size graded crushed stone aggregate including packing under and haunching against the sides of pipes complete all as specified and as directed.

M & L for 150 mm internal dia salt glazed stoneware pipes, class SP1 as per IS 651: 2007 laid in trenches and jointed with cement slurry and yarn complete all as specified and as directed.

Demolition of stone slabs and tiles of any description or thickness laid, bedded and pointed in any mortar in floors, aprons etc complete all as specified and as directed.

M & L for 20 mm thick granite (of any type) work (table rubbed and polished) in steps, jambs, pillars, window cills, cooking platforms and like over 20 mm thick cement mortar (1:4) including pointing in white cement (1:2) using marble dust with admixture of pigment to match with shade of granite complete all as specified and as directed.

Material, T&P and labour for cleaning of blockage of wash basin, floor trap, nahani trap, gully trap (GT), kitchen, bath etc. (carrying sullage) in any length upto the first manhole by any means (using chemical or any mechanical device) & flushing with water complete all as specified and as directed.

Material, T&P and labour for cleaning of sewage line of any dia/bore using the cleaning devices as per rule 5 and protective gear and safety devices as per rule 4 of the Prohibition of Employment as Manual Scavengers and their Rehabilitation Rules, 2013 and removing blockage if any complete all as specified and as directed.

Cutting into existing manholes for connecting new drains of pipe of nominal size 100 mm, making good to pipe and rendering, cutting out existing benching for and forming branch channel (1/2 round or 3/4 section) in cement concrete M15(Nominal mix) using 20 mm nominal size graded crushed stone aggregate, smooth finished, and reforming benching as required complete all as specified and as directed.

S&F RCPC drain cover of size 800x450 mm and thickness 75 mm thick confirming to IS 12592:2002 complete all as specified and as directed by Engineer-in-Charge

Material, T&P and labour for cleaning of manholes using the cleaning devices as per rule 5 and protective gear and safety devices as per rule 4 of the Prohibition of Employment as Manual Scavengers and their Rehabilitation Rules, 2013 and removing blockage if any and removing night soil/ silted sludge/ waste material outside MD land unprohibited by any authority and following the statutory law/ guidelines complete all as specified and as directed.

SINHA ENTERPRISE

R T BUILDERS

DGR CONSTRUCTION

DIPAK ENTERPRISE