REPAIR TO SEEPAGE LEAKAGE ROOF WATER PROOFING TREATMENT OVER ROOF SLAB AND OTHER MISC WORKS IN STRAND LINE AREA UNDER GE (CENTRAL) KOLKATA

Amount

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 of roof tiles including cement mortar bedding of any description complete all as specified and 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 up or down Steel Water Tubing 40mm dia (bore) including Connections and Fittings, Segregating Serviceable Pipes & Fittings, Stacking properly at Site(s) and keep in Safe Custody for re-use or removal to store complete all as specified and as directed.

Dismantling of cast iron 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.

M&L Chipping of unsound/weak concrete materials of 50mm average thickness from columns/beams etc by any means including tapering all edges making square shoulders of cavities air or sand blasting etc and cleaning of exposed concrete surface of lightly picking material by air blasting or sand blasting incl foreign materials, loose concrete/aggregate etc upto any height of building including necessary scaffolding and safety measure complete all as specified and directed by Engr in charge.

M&L Chipping of unsound/weak concrete materials of 30mm average thickness from slabs/chajja/ fin fascia etc by any means including tapering all edges making square shoulders of cavities air or sand blasting etc and cleaning of exposed concrete surface of lightly picking material by air blasting or sand blasting incl foreign materials, loose concrete/aggregate etc upto any height of building including necessary scaffolding and safety measure complete all as specified and directed by Engr in charge.

M&L Removing concrete all around reinforcement including behind of reinforcement bars to give an average clearance of 25mm (but not less than 15mm clear air gap) by manual methods (hammering and using wire brushes, chieselling etc.) and applying alkaline rust removing chemical followed by removing rust including from behind the reinforcement bars by emery paper and cleaning the area throughly by water and alllow it to dry as per manufacturer's instructions to provide totally rust free finished steel surfaces, length of reinforcement bars cleared of concrete shall be measured for payment including upto any height of building, up to 16mm dia of bars complete all as specified and as directed by the Engr-in-Charge.

Material and labour Cleaning of exposed concrete surfaces of lightly sticking materials including foreign materials, loose concrete/ aggregate etc and disposal of all debris upto distance of 50 m and applying single coat of epoxy bond adhesive on prepared non metallic surfaces (existing surface) by using brush as per manufacturers instruction / specification upto any height of building complete all as specified and as directed by the Engr-in-Charge. Make:- Fosroc/ Sika/ Hindcon Chemicals Ltd

Supply and application Epoxy Zinc rich primer on the prepared reinforced surface by brush, the primer shall have a minimum specific gravity 1.75, minimum wet film thickness/coat 100 microns & dry film thickness/coat 40 microns. Minimum adhesive bond strength with steel is 1.5 N/mm2 upto upto any height of building complete all as specified and as directed by the Engr-in-Charge.

Supply and application free flow non-shrink cementitious micro concrete to the affected beam, column etc. above 45 mm but upto 60mm thickness (average) where major spalling has taken place even the core of concrete affected. The Micro concrete shall have a minimum 1 day compressive strength of 10 MPa and 28 days strength of 50 MPa, Minimum tensile strenght 2 N/mm2 @ 28 days, minimum Flexural strength 5 N/mm2@ 28 days tested as per BS 4551-80, Expansion characterstics Unrestrained expansion as per ASTM C827-1987 1 to 4%. including necessary formwork, upto any height including necessary scaffolding and safety measures complete all as specified and as directed by the Engr-in-Charge.

Supply and application Two component structural grade polymer modified reinstatement mortar where local spalling has taken place or shuttering is not possible. The Mortar can be applied from a minimum of 5mm to 15mm thickness in smaller vertical pockets and upto 100 mm thickness in horizontal applications. The Mortar should have a minimum compressive strength 12 N/mm2 in 1 day and 4 5N/mm2 in 28 days. Minimum Flexural strength should be 8 N/mm2 in 28 days. A modified styrene butadience emulsion for use as a bonding aid and gauging liquid for cementitous systems to be mixed with cement slurry before the application of microconcrete to be used @ 6 lit/bag of cement. The bonding agent should have minimum compressive strength 24 N/mm2 Minimum Tensile strength 3.5 N/mm2, Minimum Flexural Strength 6.5 N/mm2 including necessary scaffolding and safety measures complete all as specified and as directed by the Engr-in-Charge.

M&L applying concure LP 90 or equivalent over concrete and cement plaster as curing compund as per manufactures instructions including necessary scaffolding and safety measures complete all as specified and as directed by the Engr-in-Charge.

M&L Introducing new reinforcement bars for structural connections in RCC beam, lintels, columns and slabs etc including power drilling holes of appropriate diameters in reinforced or plain cement concrete to a minimum depth of 150mm upto 200mm including power drilling, fixing the reinforcement in position using epoxy after dusting of loose dust by blowing air, sealing the same with epoxy cartridges etc as per manufacturer instruction for upto 12mm dia of bar and up to four storey height of building complete all as specified and as directed by the Engr-in-Charge.

Removal of damaged / loosened mortar between bricks and refilled the brick joints with 1:3 cement mortar mixed with Nitobond SBR latex at the rate of 20% by weight of cement complete all as specified and as directed by the Engr-in-Charge.

Providing and Applying two (02) coats of high performance two component elastomeric cementitious damp proof coating system with Nitoproof Damp Protect to the masonry wall surface complete all as specfied and directed by Engr-in Charge for the following specification. After application of first coat to Masanoary wall surface, the second coat must be applied in perpendicular direction to the first coat when it has dried (approximately 4-6 hours at 20°C) Brushbond AquaProtect conforms to the requirements of: • Mixed density :1.7 g/cc • Elongation at break as per ASTM D412: 100% • Crack bridging as per ASTM C1305 : No cracking up to 1.2 mm • Rapid Chloride penetrability resistance as per ASTM C1202: Very Low Coverage: One 15kg pack covers approximately 12sqm at about 1.0mm thickness depending on surface conditions and water usage.

M&L Cutting grooves in brick wall, 75mm wide and 65mm deep and shaping horizontal face of groove with cement mortar 1:3 complete all as specified and directed.

M&L Cutting chases, pinning in, making good to facings where required and pointing in cement mortar 1:3 to ends or edges of landings, steps, cills, sunshades, shelves, lintels, etc.; and cutting chases for concealed water tubing etc., and making good, cutting not exc 10Cm girth complete all as specified and as 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 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.

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.

Stripping of old tarfelt including layer of plaster or morter of any type of treatment carefully from roof surfaces (without damage of roof) and roughening of surface of old concrete roofing by picking, sweeping, cleaning and washing down with water to remove dust complete all as specified and directed.

M&L 20mm thick screed bed or bedding layer in CM 1:4 surface finished even and smooth without using extra cement for padding including neat cement slurry @ 3.00 kg /sqm complete all as specified and directed.

M&L Water Proofing Treatment on existing cleaned RCC Roof with the following Specifications and Manufacturer's instructions, complete all as specified and as directed :- (a) Preparing and cleaning of fully dry surface as per IS:3067-1966. (b) Applying Bitumen Primer conforming to IS-3384-1986 over the Cleaned Plastered Surface @ 0.50 Litre per Sqm. (c) Applying a layer of APP based Polymeric Membrance; 3.0mm thick (minimum) weighing 3.60 Kilogram per Square Metre (reinforced) with Polyster Non Woven Fabric weighing not less than 160 Grams per Square Metre by Torch application. The overlaps shall be minimum 100mm on the Transverse direction and 75mm on Longitudinal direction. (d) Applying one coat of Aluminium Paint @ 0.10 Litre per Sqm over APP based Polymeric Membrane.

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 5.0mm thick in Cement Mortar 1:3 on Concrete Surfaces of Ceiling, etc. 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 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 old decorated Plaster Surfaces of Wall and applying One Coat of acrylic distemper (any colour /tint) 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 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 Cement Base Paint over a coat of primer complete all as specified and as directed.

M&L Preparation of new steel surfaces of any description, over 10 Cm in width or girth, not otherwise described and applying two coats of synthetic enamel paint over a coat of red oxide primer complete all as specified and directed.

M&L for dewatering of existing PVC tank/service reservoir of bldg of capacity 2000 ltrs at roof by using existing valve and high capacity dewatering pumping set, cleaning the tank with wire brass/fine steel wire brush clothes, removing all dirt scale algae formation inside the tank by using TERBAC G5 (laboratary tested chemical) including writing with white paint over black base/cement base on tank wall as 'Tank Cleaned On...........' with date,month and year with minimum of 10cm of height capital letters/numbers complete all as specified and as directed.

All as per item No.38 here in before but PVC water tank capacity upto 1000 ltrs.

All as per item No.38 here in before but PVC water tank capacity upto 500 ltrs.

S&F PVC water tank cover of any capacity fixed with mild steel nuts, bolts and washers of suitable size, as in repair, complete all as specified and as directed.

S&F Rotational Moulded Polyethylene (HDPE) Water Storage Tank 500 Litre Capacity (Cylin -drical Vertical with Closed Top), Black in Colour, Three Layered Construction, hoisted and fixed in Position all specified in MES Schedule Part-I including provision of 25mm x 100mm GI nippples with check nuts for inlet, outlet wash and overflow pipe including Lowering of old/ unserviceable Water Storage Tank of any description, complete all as specified and as directed.

S&F Rotational Moulded Polyethylene (HDPE) Water Storage Tank 1000 Litre Capacity (Cylindrical Vertical with Closed Top), Black in Colour, Three Layered Construction, hoisted and fixed in Position all specified in MES Schedule Part-I including provision of 25mm x 100mm GI nippples with check nuts for inlet, outlet wash and overflow pipe including Lowering of old/unserviceable Water Storage Tank of any description, complete all as specified and as directed.

M&L repair for bathroom,WC outlet pipe junction/joints and rain water mouth pipe mouth with help of chemical component conbextar GP2 incl PCC 1:2:4 type B1 (20mm graded aggregate) as per manufacturer instruction complete all as specified and as directed.

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

S&F Cast Iron Tee 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, complete all as specified and as directed.

S&F Cast Iron Soil, Waste and Vent Pipes 100mm bore (dia), Sand Cast, in any Length with or without Ears, with Cement Joints in Cement Mortar 1:1, fixed to Walls, including MS clamps nuts, bolts and washer complete all as specified and as directed.complete all as specified and as directed.

Refixing 100mm bore CI waste and vent pipe of any length with or without earswith Cement Joints in Cement Mortar 1:1, fixed to Walls, including MS clamps nuts, bolts and washer complete all as specified and as directed.complete all as specified and as directed.

S&F 100mm bore cast iron sanitary short connections pipe of length upto 300mm including Jointing with Cement Mortar 1:1 as in repair complete all as specified and as directed.

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 : Parryware Cat No C0117 or equivalent model as specified in list of approved makes given here in after in Particuler Specification.

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 including taking down/out unserviceable Flush -ing Cistern and connected Items, complete all as specified and as directed. Make - Parryware Model No-C0297or equivalent make as specified in the particular specfication.

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- E-8090, Cera cat part No CONGO B1010109 or equivalent model as specified in Particular Specification here in after.

S&F PTMT Ball Valve 20mm dia having mini -mum weight 210 Grams, high pressure with epoxy coated Aluminium Rod and high density Plastic Ball, screwed for Iron Pipe and fixed as in repair, complete all as specified and as directed. Make- Prayag or equivalent make as specified in the particular specification.

Supply and Laying Steel Water Tubing 40mm Bore (dia), Galvanised, ‘Medium Grade’ with all Fittings, fixed on Walls, Ceiling or laid in Floors or any other Situation, complete as all specified and as directed.

Relaying/Re-fixing Galvanised Steel Tubing 40mm Bore (dia) and Connections in New or Old Position (Serviceable Pipes and Fittings obtained from taking down item) after Cleaning both Inner and Outer Surfaces of Pipes by using of Wire Brush including Provision of New GI Fittings (as ordered), complete all as specified and as directed.

S&F CPVC pipes 40 mm outer diameter of SDR 11 & plain CPVC SDR 11 fittings fixed on Walls, Ceiling or laid in Floors or any other Situation, etc up to four stories height of bldgs. complete as all specified and as directed.

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.

JHAWAR SUPPLIERS

RADHA ENTERPRISE

UNIVERSAL TRADING CENTRE

BHARUKA ENTERPRISES

ROY CONSTRUCTION

NIRMAL DAS AND CO.

SENCO