Construction of external elevated Duct supporting structure at RCL in IGCAR, Kalpakkam.

Amount

All kinds of soil with depth upto 1.5m below average Ground level and disposing surplus excavated earth upto a lead of 200 metres.

All kinds of soil with depth exceeding 1.5m but not exceeding 3m below average Ground level and disposing surplus excavated earth upto a lead of 200 metres.

Conveying the surplus excavated earth & debris, boulders and spoil by mechanical means and depositing at places inside DAE installation identified as Dumping yard as per requirement with a lead specified below including loading, unloading, breaking clods, levelling all complete as per specification and as directed by the Engineer-in-Charge. Note: 1) The rates in respect of this Item are applicable for the NET Quantities arrived at after making deductions for voids @ 20% in respect of soil and @ 50% in respect of Rock from the corresponding Stack / Truck measurements. 2) The earth shall be dumped well inside the Dumping yard and not over approach pathway road.

Lead charges for lead Exceeding 4 kilometre but not exceeding 5 kilometre

Providing and laying cast insitu controlled reinforced cement concrete of specified grade at all levels and lifts mentioned below using 20mm maximum size hard granite machine crushed graded stone aggregates and crushed stone sand including weigh batching, charges for mixing & cost of admixture, mechanical mixing, transporting and placing at all lifts, vibrating, consolidating, curing and finishing smooth of all exposed faces complete for column footings, columns, lintels, sunshades, gutter slabs, beams, slabs, water tank, machine foundation and all other structural elements including dewatering wherever necessary (Formwork and reinforcement will be paid for separately) all as per specification and all as shown in drawings and as directed by the Engineer-in-charge for all insitu item. Note: 1. The rate of concrete shall include all labour, equipment, charges for mixing & cost of admixture. Chemical admixture conforming 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.

M30 grade with 370 kg. of cement per cu.m. of concrete upto plinth level

M30 grade with 370 kg. of cement per cu.m. of concrete upto five floors (Each floor height 3.75m)

Providing and laying cast insitu controlled cement concrete of specified grade at all levels and lifts mentioned below using 20mm maximum size hard granite machine crushed graded stone aggregates and crushed stone sand including weigh batching, charges for mixing & cost of admixture, mechanical mixing, transporting and placing at all lifts, vibrating, consolidating, curing and finishing smooth of all exposed faces complete including dewatering wherever necessary all as per specification and all as shown in drawings and as directed by the Engineer-in-charge for all insitu item. Note: 1. The rate of concrete shall include all labour, equipment, charges for mixing & cost of admixture. Chemical admixture conforming 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.

M20 grade with 300 kg. of cement per cu.m. of concrete upto plinth level

Providing and applying coal tar based epoxy protective coating ‘Fosroc Nitocote ET402 or Sikagard-5310 Coal Tar or Cera corroseal CT or approved equivalent’ over the external surface of RCC structures below ground level and other required locations applied for a total DFT of 350 microns with suitable brush or a roller brush in two or more coats as per manufacturer recommendation (The Dry Film Thickness will be measured for a minimum thickness of 350 micron for payments). The substrate shall be prepared by mechanically grinding using electrically operated hand held sander machines to expose all blow holes, voids and imperfections and these shall be cleaned by flushing with air and water if required to clean any oily substance and filled with suitable epoxy putty before the application of the protective coating, all complete as per the instruction of manufacturer and as directed by the Engineer-in-Charge.

Providing, straightening, decoiling wherever necessary bending, cutting, binding and fixing in position steel reinforcement at all levels TMT bars of Fe500D grade steel conforming to IS:1786 SAIL or VIZAG or approved equivalent make 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 in cement mortar 1:2 and binding wire complete all as per specification and as directed by the Engineer-in-charge at all lifts. Note: The rate shall be including the cost of reinforcement steel. The reinforcement steel will be procured from dealers with a test certificate as approved by the department. For further details please see point 7 of Section VIII, General Information for Guidance of Tenderers.

Supplying, fabricating, erecting and fixing in position at all levels, centering and shuttering to correct line and levels including strutting, propping, etc., with necessary bracings in all axes to give a stable assembly with provision for making the joints in the shuttering fully leak proof and with provision for fixing coil nuts with tie rods along with suitable channel for lateral supports and for inserts, projecting dowels, anchor bolts or any other fixture, including staging, access and working platforms etc., all complete as specified and directed including dismantling and removing the aforesaid assembly after the concrete attains the sufficient strength to self-support itself without cracking and distortion all as per specification, including all materials and labour complete in all respects at all lifts. The measurement for the formwork will be the actual area of forms in contact with concrete surfaces. Shuttering with plywood panels alone will be permitted.

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, sag rod, 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 / synthetic 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.

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

Providing and applying a Anti-Carbonation coating to the external wall surfaces (Rough cast / Plain surfaces) at all locations and at all elevations including preparing the surface, providing and applying a single component acrylic polymer based protective coating ‘Cera Infraguard – WA / Fosroc Dekguard E2000 / Sikagard 550 W IN or approved equivalent of a minimum of 2 coats over a primer coat with Cera Infraguard – WA primer / Fosroc Dekguard WB primer / Sikagard-552 IN Primer W’ or approved equivalent and cost of all materials, labour, tools, tackles, equipment’s, transport etc. complete all as directed by Engineer-in-charge and as per the specifications. The total dry film thickness of both coats excluding primary coat should be minimum of 200 microns. Note: 1) Scaffolding work will be paid in separate item. 2) The contractor shall arrange the suitable safety arrangements for executing the work at his own cost as directed by the Engineer-in-Charge.

Providing and fixing of mechanical anchor bolt at all levels in to RCC beams, columns, slab and other RCC members of below mentioned anchor bolt grade, anchor size and anchor length including drilling, fixing in position, inclusive of all machinery and man power, scaffolding etc. complete all as per specification and as directed by the Engineer-in-Charge.

M16 anchor size, 190mm embedment depth, Zinc-plated Ultimate-performance pre-set undercut anchor for dynamic loads from Hilti (HAD-P M16x190/60, Hilti item number 331551) or approved equivalent

Providing and placing in position Micro-concrete of below mentioned grade Cera Micro concrete or Fosroc Renderoc RG or SikaRep Microcrete-4 or approved equivalent make, which shall be cement based prepacked single component, chloridefree, non shrink, freeflow, self compacting, ready to use after mixing water in specified proportion obtained from approved manufacturer for used in members as directed, all as per specification and directions of Engineer-in-Charge. (Payment under his item shall be made only after proper wet curing has been done and surface has been satisfactorily evaluated by sounding /tapping with a blunt metal instrument)

Micro concrete of M30 grade

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, runners, connection with building etc. wherever required for inspection of work at required locations with essential safety 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 .

Manufacturing, supplying, hoisting and fixing in position at all lifts, precast units of various patterns and sizes for precast plain solid units, slabs, exhaust fan moulds etc., in reinforced cement concrete of 1:1.5:3, using 20mm and below machine crushed graded stone aggregate and crushed stone sand including 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-in-Charge.

S PERIYASAMY (BID ID -3271369)