Fabrication and Erection of RCC Hatch blocks, Stainless Steel Handrails for Staircases and Stainless Steel Cage ladder for RCC stack in WMP at FRFCF Project site at Kalpakkam

Amount

Manufacturing, supplying, hoisting and fixing in position at all lifts, precast units of various patterns and sizes for precast plain solid units, slabs, etc, in controlled reinforced cement concrete of M30 grade using 380 kg/cum of PPC, 20mm and below machine crushed graded stone aggregate including making perforations in precast slab as per drawing weigh batching, mechanical mixing, casting, vibrating, finishing of exposed faces, curing, necessary formwork, moulds, transporting and placing at all lifts, preparation of connections, grouting with cement mortar/cement grout wherever needed excluding steel reinforcement complete all as per drawing, specification and as directed by Engineer. Note: 1. The rate of concrete shall include all labour, equipment, charges for mixing & cost of admixture. Polycarboxylate ether (PCE) based chemical admixture confirming to IS 9103 shall be mixed in fresh concrete and prior permission from engineer-in-charge shall be obtained for dosage and compatibility. 2. Test certificate of cement, procured from dealer/company to be submitted for all cement related works by the Contractor. 3. The rate shall be quoted on the basis of using minimum cement per cu.m. of concrete mentioned below for relevant grade of concrete. Any upward/ downward variation required to obtain the specified strength will be paid for or deducted at the rate of cement specified in Schedule F. 4. Rate shall also include Transportation of the casted RCC hatch blocks and placing in position within the tolerances specified in drawings or specifications. 5. EOT Crane available in the building shall be utilised for Lifting and positioning the hatch blocks. 6. Hatch covers are available at various elevation within cells from floor level to maximum height of 17m. 7. Rate is including of all temporary scaffoldings, staging within the rooms as necessary for the work.

Providing and fixing double Tubular scaffolding system using H-Frames / APS system or (cup lock type) on the exterior side upto seven story height made with 40mm dia M.S. tube 1.5m centre to centre horizontal and vertical tubes joining with cup and lock system with M.S. tubes, M.S. tube challies, M.S clamps and M.S staircase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for the required duration as approved and removing it thereafter. The scaffolding system shall be stiffened with bracings, runers, conection with building etc. wherever required for inspection of work at required locations with essential safely features for the workmen etc. complete as per directions and as approved by the Engineer-in-charge. The elevation area of the scaffolding shall be measured for payment purposes. The payment shall be made once irrespective of duration of scaffolding.

Providing straightening, decoiling wherever necessary bending, cutting, binding and fixing in position steel reinforcement TMT bars of Fe500D grade steel conforming to IS:1786 and tying with approved annealed binding wire of 1.6mm dia in all reinforced cement concrete work at all lifts, including cost of supplying and fixing the spacer/cover blocks and binding wire complete all as per specification and as directed by Engineer-in-Charge at all lifts. Note: The rate shall be including the cost and testing of reinforcement steel at thrid party NABL lab. The reinforcement steel will be procured from dealers with a test certificate as approved by the department.

Providing, supplying, cutting, bending to shape, welding, fabricating, hoisting, placing and fixing in position structural steel members like MS structural embedment's/pipe and sleeves/penetration etc. Using MS angles, channels, I-sections, plates, tees, flats, rounds, square sections etc. including chamfering and rounding off the edges, applying a coat of Red lead paint primer / Zinc chromate primer of approved make and 2 coats of flat oil paint / sythetic enamel paint of approved colour and make, scaffolding and staging required for fabrication as well as erection complete all as per specifications, drawings and as directed by the Engineer-in-charge. Note: Lifting device arrangements if any required also arranged by the contractor at his own cost.

Supply, placing and levelling in position of lifting ring conforming IS 2760 or equivalent in concrete works by providing and using steel templates wherever required, including tools, tackles and equipment etc.., complete for all elevation as per drawings, specifications and as directed by Engineer in-charge. Note : 1. The material of lifting ring is Alloy steel grade 80 only and it is elliptical in shape. Size will be determined based on the weight of the hatch to be casted. 2. Material and Safe Working load test certificate is required for all rings.

Providing, fabricating and fixing Stainless steel chequered plates, ladders using SS304L grade Stainless Steel pipes, Square sections, plates etc. of approved size, make and quality by cutting to required size, welding, mirror / matt polishing, fixing at site etc. for RCC Stack, ladders, Handrails in Staircase etc.., including special sections and anchor fasteners or welding for fixing as per drawings, specifications complete. A sample to be fabricated and to be got approved by Engineer-in-Charge before starting of work at site. This work to be executed through approved specialized agency. Note : 1. Fabricaiton drawings ahall be submitted baed on the site measurements for commencement of work. 2. EPs is already embedded in the concrete. Rate shall also include welding / anchor fasterners for fixing the ladder / handrails in position wherever applicable.

Handrails, cage ladder using SS 304L grade stainless steel quality members of approved size, make and quality by welding, mirror / mat polishing, fixing at site at all levels for staircases, balcony including special sections as per drawings, specifications and as directed by Engineer in-charge.

Cage ladder SS 304L grade stainless steel quality members of approved size, make and quality by welding, mirror / mat polishing, fixing at site at all levels for RCC Stack upto 75 m height as per drawing, stays, safety cage, ladder safety device, temporaray scaffoldings / formwork and accessories etc. Note : 1) Material winches, pulley or cranes required shall be borne by the contractor without extra cost. 2) Resources for shifting the materials to a maximum height of 75m shall also be borne by the contractor without extra cost. 3) Rail type fall arrester system shall be executed in this item.

Supply, fabricaton, inspection and erection in position of Fall arrester system of Inovatix and Karam or approved equivalent for RCC stack of maximum height of 75m including transportation, hoisting, aligning at the final place of erection with temporary supports etc., all connections/ welding wherever required. Rate shall include all materials, labour, tools/tackles, plant and equipment, supervisions etc all complete as per the manufacturer specifications and as directed by Engineer in-charge.

Supply and fixing the accessories to the SS Cage ladder using such as Tensioner SS 316 (8mm dia) with swageless termination of end wire, Shock absorber – Vertical FAS on rigid cable, Cable extremity swageless, termination - SS 316 (8mm), Extension arm VFAS (MS power coated), Top anchor for rope grab fall arrest system, Bottom anchor for rope grab fall arrest system and other accessories required for complete installation as per manufacturer specifications and as directed by Engineer-in charge. Note : Cable shall be of 7 x 19 construction.

Wire rope SS 316 - 8mm dia (7 x 19 construction)

Supply of PPE and other accessories such as Carabiner screw lock, Rope grab using stainless steel for steel rope, Full body safety harness (artemis harness), Double lanyard 1.8 mtrs with energy absorber & scaffold hook at both end etc.., all complete as per manufacturer specifications, testing and directed by Engineer in-charge.

Placing, aligning, levelling in position to correct lines and levels of all assorted size of CS or SS sleeves, pipes, bolt assemblies, fixtures etc in concrete works by providing and using steel templates wherever required, including tools, tackles and equipment etc complete for all elevation. Note: 1. Jigs and fixtures will be paid under relevant item. 2. Material will be paid under relevant item or issued by department free of cost.

Removal of erected rebars used in the staircase or openings as handrails at the said locations by manual / mechanical means in RCC members at all levels including removal of welding, grinding the EPs, removing the steel as per the specifications and as instructed by Engineer in-charge. Rate shall also include labour, tools and tackles, grinding the EPs, other consumables and removed rebars as scrap (including salvage value of rebar).

Painting of Structural steel with two coats of Synthetic Enamel (IS 2932) Golden yellow paint (after erection) two finish coat of each 50 micron including supply of paint, spot application of primer, scaffolding at all elevation etc. complete.

Providing F3 finish over concrete surface in cement mortar 1:1.5 (1 part cement : 1.5 part fine sand) including wetting the surface, labours, curing, all materials, scaffolding, at all elevations complete all as per specification and as directed by the Engineer-in-charge.

Dewatering from trenches, sump, foundation structure using electrical submersible or suitable pump of required capasity with necessary arrangements to the nearest storm water drain or at places shown as directed by EIC including HDPE pipe, maintenance of the system, cost of spares, idling, labour for operation etc. Mode of measeurement will be power consumption in KWh. Note: This item will be operated during abnormal bad weather, surface run off from outside scope of work only.

Supply and application of 4 coats of Epoxy paint from approved manufacturer & approved shade and approved colour to interior walls, columns, beams, ceiling gantry platform and as indicated in the drawings including preparation of the surface to be painted, by surface grinding, removing laitance, cement slurry, formoil, foreign matter, open voids, water cleaning, protecting the plate EP's, pipe EP's, closed steel boxes, edge angles with masking tape, applying primer coat, one coat of putty mixed with epoxy, filling all voids/pinholes in concrete by approved wall putty mixed with epoxy, removal of roughness in plastered surface with one or two coat of putty, applying epoxypaint by airless spray gun or roller brush with necessary ventilaton system, exhaust fans for proper release of gas, using boom lift, scissor lift, or any other advanced machineries, all materials, tools - tackles, equipment, materials, labour, necessary cleaning equipment, etc,. all complete as per manufacturer specification at all elevations and directed by the EIC. Note: Rate includes following 1. Two or more shade with 500 micron thickness shall be envisaged in a single wall. 2. Wetfilm thickness and Dry film thickness shall be checked at frequent intervals and as per QA requirements. 3. Rate shall also include preparation of concrete/ wall surface by breaking (if required), chipping, surface grinding and making the concrete surface smooth by cement mortar touch up work / minor plastering as indicated by EIC. 4. Painting in confined areas also envisaged in this item. Embedments / equipments available in the room shall be protected with masking tape or by alternate arrangements.

500 microns at all elevation

Dismantling of RCC works at all levels by manually / by mechanical including Cutting and stacking of steel reinforcement bars and disposal of unserviceable materials within 50m lead, labour, tools required etc. complete in all respects as per specifications and directed by the Engineer-in-charge.

Providing and fixing dressed Granite slab 18 mm thick in treads, risers , sides of steps with anti-skid groovesand moulded nosing / window sill with moulded nosing, etc with machine cut edges, pre-polished and rubbed to smooth mirror finish all to required sizes, design, details and pattern as per drawings, on 32 mm thick, 1:4 cement mortar bedding, fit joined with white cement slurry mixed with pigment to match shade of granite including all finishing, line & level etc., complete to the satisfaction of the EIC.

A Perumal Constructions (BID ID -3274468)

SBB STAINLESS STEEL FABRICATION (BID ID -3255639)