REPAIR AND MAINTENANCE OF SEWAGE LINE, SEPTIC TANK, AREA DRAIN, HARD STANDING, BOUNDARY WALL INCLUDING CERTAIN MISC B/R REPAIR WORK AT SSB DIAMOND HARBOUR UNDER GE (I) (CGN) KOLKATA

Amount

Dismantling wrought iron or mild steel work of any description not otherwise provided for complete all as specified and directed.

S&F rolled mild steel section Fe 410 -W (Gde- E- 250) quality "B" framed work as in doors or gates with frame/chowkat with hand made holdfast made from angle of other section with gusset plates, rails braces, flat 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 with sliding door bolts etc. (excluding steel covering which shall be measured and paid separately under respective items in this Schedule) and hanging fastening and fixing at any level in high raised bldg complete all as specified and directed by Engineer-in-Charge.

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 con- forming to Fe.290.Gde-E-165

M&L preparation of new or previously untreated steel and iron surfaces 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 directed.

Demolition of brickwork or stone/ boulder masonry, built in cement mortar including all quoins, arches, pillars, etc, but excluding ashlar facings, dressed stonework and precast concrete articles complete all as specified and as directed.

M&L brick work with sub class 'B' bricks straight or curved in plan exc 6 mtr mean radius built in CM (1:6) using old size bricks complete all as specified and as directed.

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

M&L for rendering 15 mm thick on brick or concrete surfaces in CM 1:4 mixed with WPC for final coat, each layer is 10 mm thick finished surface even and smooth without using extra cement complete all as directed. (Note :WPC @ 2% by weight of cement or as per manufacturer instructions measured and paid sapatarely).

Material & Labour for applying two coat of 100% Premium acrylic emulsion paint having VOC less than 50 gm/litre and UV resistance as per IS 15489:2004, Alkali & fungal resistance, dirt resistance exterior paint of required shade (Company Depot Tinted) with silicon additives @ 1.43 litre/ 10 sqm over and including priming coat of exterior primer applied @ 0.90 litre/ 10 sqm over new surfaces. all as specified and directed for work upto 4 th storied.

Material & Labour for applying one coat of 100% Premium acrylic emulsion paint having VOC less than 50 gm/litre and UV resistance as per IS 15489:2004, Alkali & fungal resistance, dirt resistance exterior paint of required shade (Company Depot Tinted) with silicon additives @ 1.43 litre/ 10 sqm over and including priming coat of exterior primer applied @ 0.90 litre/ 10 sqm over old surfaces. all as specified and directed for work upto 4 th storied.

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

Claning of 1000 litrs capacity PVC water storage tank by taking down existing inlet and outlet pipes setting aside the tank and cleaning, rubbing down and removing all scales and dirt, mud and any other foreign materials etc from inside complete incl writting letter on PVC tank as TANK CLEANED ON ____ Dt, Month and year complete all as specified and as directed.

Cleaning of RCC roof tank of capacity more than 25000 ltrs by taking down existing inlet and outlet pipes and cleaning, rubbing down and removing all scales and dirt, mud and any other foreign materials etc from inside complete incl writing letter on RCC tank as TANK CLEANED ON ____ (Dt, Month and year) complete all as specified and as directed.

Demolition of cement concrete is reinforced ( reinforcement cut as required to facilitate demolition ) in Roofs, floors (other than ground floors), beams, staircases, landing, chajjas and similar suspended work ®

S&F Mild steel bars 10mm dia and over, cut to length, bent to shape required, including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9mm dia or securing with clips

M&L for RCC nominal mix M-20 type -A1 1:1.5:3 (20mm crushed stone aggregate) as in slab for footpath , ramp etc. including necessary form work complete all as specified and as directed.

Demolition of cement concrete (unreinforced) in ground floors and paving n exc 15 cm thickness (below or above ground level) complete all as specified and directed.

M&L for Cement concrete 100 mm thick Type C1 (1:3:6) 20 mm graded stone aggregate as in floor finish concrete surface even and rough finish to receive topping layer.

M&L screed bed or bedding layer 15 mm thick in cement mortar 1:6 on floors for laying floor finish complete all as specified and as directed.

M&L for Chequered cement concrete tiles 30cm x 30cm x 25mm thick, set, jointed with grey cement and no pigment and pointed in neat cement slurry in floors all as specified and as directed incl taking down old one

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

Dismantling fencing wire mesh, any type

S&F PVC Coated chain link fencing having weight of 5.50 kg/sqm of steel of dia 4 mm of size 50x50mm fixed with nut and bolts with washer to angle or MS plate section complete all as specified and as 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.

Supply and fix 110mm PVC (SWR) pipes single socketed, in any length with rubber ring joints, laid in trenches or in floors including taking down old one pipe.

S&F 110 mm dia PVC branch piece single, (single Y) ordinary or inverted spigot or socketed type with oval access doors all as specified and directed including taking down old one.

S&F 110 mm dia PVC branch piece double, (equal or unequal) ordinary or inverted spigot or socketed type with oval access doors all as specified and directed including taking down old one.

Dismantling of 100mm dia in pipe cast iron or reinforced concrete drain pipes, jointed in cement mortar and taking out of trenches or wall if required

M&L Integral waterproofing compound for used in plaster of new surface.

Material and labour for cement concrete 1:4:8 type D2 using 40mm graded crushed trap stone aggregates in foundation or similar works.

Excavating in trenches, n exc 1.5 m wide and n exc 1.5 m in depth for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. n exc 10 sq m on plan and n exc 1.5 m in depth and getting out

Removing excavated material n exc. 50m and depositing where directed at a level n exc. 1.5 m above the starting point complete all as specified and directed.

Returning filling in, including spreading leveling,watering and well ramming in layers n.exc 25m in soft/loose soil.

Demolition and breaking up drain pipes Internal dia of pipe in150mm mm (Salt glazed ware, AC or Reinforced concrete) set in cement mortar

M&L for 150 mm thick Concrete bed to drain pipes in cement concrete 1:3:6 type C-1 using 20 mm graded stone aggregate including packing under and haunching against the sides of pipes after they are laid and tested for 200 mm bore pipe complete all as specified and as directed.

S&F for reinforced concrete pipes 150 mm bore, class NP2 laid and jointed complete with collars

Demolition of Stone slabs and tiles of any description or thickness in floors, aprons etc including move to store or otherwise complete

M&L Granite (of any type) 20mm thick work (table rubbed and polished) in steps, jambs, pillars, window cills, cooking platforms and like 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 complete all as specified and as directed.

Cutting into existing manhole, 225 mm bore pipe, for connecting new drains making good to pipe and removing cutting out existing benching for and forming branch channel in cement concrete 1:2:4 type B-1 using 20 mm graded stone aggregates, smooth finish and re-forming benching complete all as specified and as directed

Material and labour including tools and plant required 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.

M&L including tools and plant required for cleaning of blockage of wash basin, floor trap , nahani trap , gully trap (GT) , kitchen, bath etc. (carrying slage ) in any length upto the first manhole by any means (using chemical or any mechanical device) & flushing with water complete UPTO 4th FLOOR all as specified.

M&L including tools and plant required for cleaning of the drain pipes upto 150mm dia by roading from manhole and well flushing with water after cleaning and removing all sludge , dirt and solid contents to a distance n exc 100m and burried in ground (min 30cm below ground level) including necessary excavation returning filling and spreading of bleaching powder complete all as specified.

Dismantling water tanks and removing to store capacity upto 1000 ltr complete all as specified and as directed.

S&F Rotational moulded polyethylene water storage tanks capacity 1000 ltr (cylindrical vertical with closed top) hoisted and fixed in position all as specified including taking out old one.

Supply and fixed in repairs 600 mm x 450 mm x 75mm thick precast RCPC perforated drain cover slab of 2 MT load bearing capacity with embossing RCPC 2MT complete all as specified and as directed including taking down old unserviceable cover.

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

S&F Pre- painted galvatume aluminum zinc coating GI based corrugated steel sheet 0.50mm thick of an colour having tensile strength of 550 Mpa as in roof covering/cladding to wall, fixed with self tapping screws as specified →

S&F Pre-painted galvalume aluminum zinc coating GI based Plain 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 as specified

Supply and fixed 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 in repairs Ball valves high pressure of PTMT with epoxy coated Aluminium rod & highdensity plastic ball screwed for iron pipe of 25mm dia and fixed. (Minimum weight 15mm-142gms/ 2 0mm-210gms./ 25mm-455gms/ 40mm - 690 gms)

S&F Mild steel bars 6-8 mm dia and over, cut to length, bent to shape required, including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9mm dia or securing with clips

M&L plain cement concrete Type C-2 1:3:6 (using 40mm graded aggregate as in foundation and mass filling complete all as specified and directed.

Dismantling of cast iron or reinforced concrete drain pipes, jointed in cement mortar and taking out of trenches, if required in 600 mm dia pipe all as directed.

Providing, cement concrete type B1(1:2:4)(with 20mm graded stone agg)in roof kerbs or mud stops, rounded or chamfered on edges including nacessary form work in culvert or similar work all as specified.

M & L for 600 mm dia Reinforced concrete pipes, class NP 3 with one collar per length of pipe fixed in floor ,culvert of similar work all as specified and as directed

Providing, cement concrete type B1(1:2:4)(with 20mm graded stone agg)in kerb stone or similar work including nacessary form work in culvert or similar work all as specified.

M &L for Cement concrete work in pavement/ hard-standing of flexural strength 40 kg/per square centimetre in field using 400 kg of cement per cubic metre, thickness of concrete 25 cm or less all as specified and directed.

Forming 12 mm thick ex pansion joints filled with pre-formed bituminous filler and top 30mm primed and sealed with sealing compound, Grade ‘B’ (For thickness of slab 200 mm)

S &F 4mm dia galvanised steel wire, 150x100mm mesh, made up into mattresses or cages, lapped, wired and laid in position, including closing after filling including takeing down old one complete

S C ROY AND CO (BID ID -3111752)

Shanti Construction Company (BID ID -3104885)

KT CONSTRUCTIONS (BID ID -3109999)

RADHA ENTERPRISE (BID ID -3105396)

NESAIL CORPORATION (BID ID -3105110)

KAMAKHYA TRADERS (BID ID -3109811)

Megatrend Systems (BID ID -3106864)