Bhabha Atomic Research Centre Tender

Earthwork excavation by mechanical means (hydraulic excavator) or manual means for foundation, substructures, plinth beam & trenches all kind of foundation etc., in all types of soil like hard gravelly soil, sandy soil for the following depth from average ground level upto the required founding level, line and grades in both dry and wet conditions including shoring, strutting , bailing out of water if necessary leveling and ramming the bottom of trenches, dressing of sides, stacking the excavated material away from the edge of the trenches, refilling the sides of the foundation as required with selected excavated earth and depositing / disposing the surplus excavated earth (disposed soil to be leveled by breaking clods if any and neatly dressed and leveled) within the lead specified below all complete as per specifications and as directed by the site -in-charge. All kind of soil with depth upto 1.5m below average ground level and disposing surplus excavated earth upto lead of 50 meters.

Supplying and filling the foundation and basement with Quarry dust, filling in the layers of not more than 150mm thick, each layer well rammed and consolidated by hand/mechanical roller including watering, levelling, dressing the top surface to the required level complete all as per specification and as directed by Engineer.

Providing and laying cast -insitu controlled reinforced cement concrete M20 grade with 320 kg. of cement per cu.m. of concrete for all floors at all levels and lifts mentioned below using 20mm maximum of size hard granite machine crushed graded stone aggregates including weigh batching, charges for mixing and cost admixture, mechanical mixing, transporting and placing at all lifts, vibrating, consolidating, curing and finishing smooth of all exposed faces complete for column footing, column, lintels, sunshades, gutter slab, 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 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 and cost of admixture. Chemical admixture confirming to IS 9103 shall be mixed in fresh concrete and prior permission from Engineer-in-charge shall be obtain for dosage and compatibility. 2.Test certificate of cement procured from dealer/company to be submitted for all cement related work by the Contractor. 3.The rate shall be quoted on the bases of using minimum cement per Cu.m. of concrete mention 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 the cement specified in Schedule F.

Proving and construction brick masonry at all lifts 115mm thick brick work in cement mortar 1:4 using well burnt stock bricks including providing and placing in position 2 nos of 8mm dia rods at every 4th layer scaffolding, raking out joints on both faces etc., complete as per specification and directed by the Engineer-In-Charge. For Basement and Ground Floor

Providing plastering to the internal surface of brickwork/concrete at all elevation in cement mortar 1:5, 12mm thick finished with a floating coat of neat cement including hacking of concrete surface with pointed tool, scaffolding, finishing, curing, forming grooves where ever necessary, all as per specifications.

Conveying the surplus excavated earth & debris boulders and spoil by mechanical means and depositing at place 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 Engineering-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 dammed well inside the damping yard not over approach pathway road. Lead charges for lead Exceeding 50m but not exceeding 3Kilometer.

Providing straightening, decoiling wherever necessary bending, cutting, binding and fixing in position steel reinforcement TMT bars of Fe500D grade steel confirming 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 fixing the spacer/cover blocks in cement mortar 1:2 and binding wire complete all as per specification and as directed by Engineer-in-charge at all lifts .

Manufacturing, supplying, hoisting and fixing in position at all lifts, precast unit of various patterns and sizes for precast plain solid unit, exhaust fan moulds, slabs, etc., in controlled reinforced cement concrete of M30 grade using 20mm and below machine crushed graded stone aggregate with 380Kg of cement per Cu.m concrete 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..