Surface grading, Construction of drainage and rainwater harvesting system for operational area and some part of city side area at LBSI Airport, Varanasi

Amount

Civil Works

Excavation for earth work in all kinds of soil with hydraulic excavator of 0.90 cum bucket capacity including cutting and loading in tippers, trimming bottom and side slopes in accordance with requirement of line grades & cross section, transporting to the embankment location with all lifts & leads within airport premises including unloading etc. complete as per technical specification & direction of Engineer-in-Charge.

Spreading & Consolidation of excavated available earth in desired camber/line & level including all lifts & leads etc. complete (Excluding Rock) in embankments, depressions etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by watering & ramming with 0.5 tonne roller and every 3rd & topmost layer with 8-10 tonne vibratory roller etc. complete as per technical specification & direction of Engineer-in-Charge.

Spreading & Consolidation of excavated available earth in depression/embankment with vibratory roller of 8 to 10 tonne capacity & making good the undulations etc. with earth and rerolling the subgrade complete as per direction of Engineer-in-charge.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : (a) 1:4:8 (1 Cement : 4 coarse sand (zone-III) : 8 graded stone aggregate 40 mm nominal size)

Providing and laying in position machine batched and machine mixed design mix M-15 grade cement concrete for cement concrete work in trapezoidal drain section, using cement content as per approved design mix, including transporting and pumping of concrete to site & laying with Electrical Slip form paver,compacting, finishing in a continous operation , including admixtures in recommended proportions as per IS: 9103 to accelerate/ retard setting of concrete to improve workability without impairing strength and durability, including mechanical cutting of construction /expansion /contraction joints including steel shuttering etc, complete as per technical specification & direction of Engineer-in-charge. Note : 1) Excess/less cement used than that specified in this item is payable/recoverable separately. All works upto plinth level : (a) M-15 grade plain cement concrete (cement content considered @ 240 kg/cum).

Filling expansion joints (grooves) as per IS : 3873 with bitumen hot sealing compound conforming to IS : 5256 including cleaning and washing grooves, painting its inner surfaces with primer conforming to IS : 3384 at the rate of 1 liter per 4 sqm (approx) inclusive of cost of all materials, labour etc. complete as per directions of Engineer-in-charge. i) Expansion joints of groove size 20 mm wide and 38 mm deep including 25 mm dia closed-cell Polythelene foam back up rod (as per manufacturers specifications)

Filling contraction/construction joints (grooves) as per IS : 3873 with bitumen hot sealing compound conforming to IS : 5256 including cleaning and washing grooves, painting its inner surfaces with primer conforming to IS : 3384 at the rate of 1 liter per 4 sqm (approx.), inclusive of cost of materials, labour etc. all complete as per directions of Engineer-in-charge. i) Contraction/construction Joints of groove size 10 mm wide and 25 mm deep including 12 mm dia closed-cell Polythylene foam back-up rod (as per manufacturers specifications)

Boring/drilling bore well of required dia for casing/ strainer pipe, by suitable method prescribed in IS: 2800 (part I), including collecting samples from different strata, preparing and submitting strata chart/ bore log, including hire & running charges of all equipments, tools, plants & machineries required for the job, all complete as per direction of Engineer-in-charge, upto 90 metre depth below ground level. In All types of soil . a) 300 mm dia

Supplying, filling, spreading & leveling stone boulders of size range 5 cm to 20 cm, in recharge pit, in the required thickness, for all leads & lifts, all complete as per direction of Engineer-in-charge.

Supplying, filling, spreading & leveling gravels of size range 5 mm to 10 mm, in the recharge pit, over the existing layer of boulders, in required thickness, for all leads & lifts, all complete as per direction of Engineer-in-charge.

Supplying, filling, spreading & leveling coarse sand of size range 1.5 mm to 2 mm in recharge pit, in required thickness over gravel layer, for all leads & lifts, all complete as per direction of Engineer -incharge.

Gravel packing in tubewell construction in accordance with IS: 4097, including providing gravel fine/ medium/ coarse, in required grading & sizes as per actual requirement, all complete as per direction of Engineer-in-charge.

Supplying, assembling, lowering and fixing in vertical position in bore well unplasticized PVC medium well screen (RMS) pipes with ribs, conforming to IS: 12818, including hire & labour charges, fittings & accessories etc. all complete, for all depths, as per direction of Engineer-in-charge. (a) 100 mm nominal size dia

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in foundation and plinth in: Cement mortar 1:4 (1 cement : 4 coarse sand)

12 mm cement plaster finished with a floating coat of neat cement of mix : a) 1:4 (1 cement: 4 fine sand)

Steel work welded in built up sections/ framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer using structural steel etc. as required. a) In gratings, frames, guard bar, ladder, railings, brackets, gates and similar works

Providing and placing in position 100 mm thick factory made machine batched & machine mixed Precast RCC Rectangular Covers on drains of footpath of various sizes, of M-25 grade cement concrete for RCC work, including cost of centering, shuttering, reinforcement of 8 mm dia TMT bars of Fe 500 grade @ maximum 100mm c/c on both ways , neat cement punning on finished surface, properly encased on all edges with 1.6 mm thick , 100 mm wide MS sheet duly painted over priming coat , reinforcement to be welded at edges with MS sheet and providing 2 Nos. 12 mm dia bar for hooks etc i/c cost of cartage, all leads & lift, handling at site etc. all complete as per direction of Engineer-in-Charge.

Providing and fixing suitable size threaded mild steel cap or spot welded plate to the top of bore well housing/ casing pipe, removable as per requirement, all complete for borewell of: a) 100 mm dia

Providing and fixing Bail plug/ Bottom plug of required dia to the bottom of pipe assembly of tubewell as per IS:2800 (part I). a) 100 mm dia

Providing and laying non-pressure NP2 class (light duty) R.C.C. pipes with collars jointed with stiff mixture of cement mortar in the proportion of 1:2 (1 cement : 2 fine sand) including testing of joints etc. complete : a) 250 mm dia. R.C.C pipe

Providing and laying cement concrete 1:5:10 (1 cement : 5 coarse sand : 10 graded stone aggregate 40 mm nominal size) up to haunches of R.C.C pipes including bed concrete as per standard design : a) 250 mm diameter R.C.C. pipe

Providing weep holes in Brick masonry/ Plain/ Reinforced concrete abutment/ wing wall/ return wall with 75 mm dia unplasticised Rigid PVC pipe (Working pressure of 4 kg/cm2) in cement mortar 1:3 (1 cement : 3 coarse sand) in required slope as per direction of Engineer-in-charge.

Painting with synthetic enamel paint of approved brand and manufacture to give an even shade : a) Two or more coats on new work

M/S ALOK SRIVASTAVA

R K MISHRA AND COMPANY

M/s Anil Enterprises

Naagar Infrastructure Pvt Ltd

JKG INFRATECH PRIVATE LIMITED

S G CONSTRUCTIONS

B M AND Sons