Civil works related to installation of 7000 KVA transformer near central substation in FACT Cochin Division, Ambalamedu, Kochi

Demolishing R.C.C. work manually/ by mechanical means including stacking of steel bars and disposal of unserviceable material within 50 metres lead as per direction of Engineer - in- charge.

Dismantling and clearing away any thickness of rubble, brick, laterite in CM including disposal of debris as per directions within a distance of 150 m.

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains, in all kinds of soil, including dressing of sides and ramming of bottoms, lift up to 1.5m, including getting out the excavated soil and disposal of surplus excavated soil as directed by the Engineer-in-charge, with in a lead of 50m. The rates shall include bailing out water, and keeping the sides from collapsing using necessary timbering, planking, and shoring.

Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift up to 1.5 m.

Providing and laying plain cement concrete work in 1:4:8 mix (1 cement: 4 coarse river sand/manufactured sand: 8 40mm nominal size graded hard granite broken stones) including all charges for mixing concrete, laying, consolidating, curing, cost for bailing out of water, oil, liquid mud etc. from all sources in excavated pits, trenches, etc. complete at all levels as per standard specifications but excluding the cost of shuttering, and as directed by the Engineer in-charge for foundation / levelling course etc.

Random Rubble masonry in CM 1:6 for foundation and basement using Contractor's own rubble,including cost of cement

Supplying, fabricating, conveying, and fixing reinforcement to RCC works at all levels with high strength deformed bars Fe 500D/ 550D grade Thermo Mechanically Treated (TMT) bars conforming to IS 1786 including all charges for uncoiling and straightening rods, cutting rods, bending cold, placing in position and supplying & tying with black annealed tying wire of 16 gauge, etc. complete.

Providing form work to cement concrete and RCC works with necessary plywood / steel sheet, steel joists, runners, struts, posts etc with adjustable spans and telescopic posts, wooden planks etc. including removal after completion /curing at all levels for foundation footings, bases of columns and walls and for mass concrete with straight sides.

Reinforced cement concrete 1:1.5:3 (1 cement : 1.5 coarse sand(zone-III) : 3 graded stone aggregate 20 mm nominal size) work at all levels, excluding cost of centering, shuttering, finishing and reinforcement & including admixtures in recommended proportions as per IS: 9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability as per direction of Engineer in-charge-For yard/cable trench.

Reinforced cement concrete work of M25 grade for precast cover slab using Portland pozzolana cement containing more than 25% of fly ash, iver sand / manufactured sand conforming to IS 383 and 20mm nominal size graded hard granite broken stones including all charges for designing the mix, weigh batching, including installation of batching plant at the designated location in the site premises or arranging RMC, mixing concrete, cost of adding concrete admixtures as required, transporting, formwork, laying, vibrating, consolidating, curing with minimal use of potable water subject to provision of IS 456, handling, transporting, loading, unloading, keeping and fixing in position, at all levels etc., complete but excluding cost of providing reinforcements. (Exposed surfaces of pre-cast elements shall have good finish with no blemish or mark on the finished surfaces) NOTE- (1) Minimum Cement content shall be @ 330 kg/cum. Excess/ less cement used as per design mix is payable/ recoverable separately. (2) Fly ash conforming to grade I of IS 3812(Part-1) only be used as part replacement of OPC as per IS: 456. Uniform blending with cement to be ensured in accordance with clauses 5.2 and 5.2.1 of IS:456 - in the items of BMC and RMC -for cover slabs on cable trench.