Construction of RCC Drain, RCC Box Culvert and allied works in the area between Parallel Taxi Track and new Apron at Trichy Airport.

Carriage of materials By Mechanical Transport including loading,unloading and stacking upto 2 km (The rates will be applicable to net quantities after deduction of prescribed percentage for voids mentioned in the specification nder subhead "Carriage of Materials"). Earth.

Earth work in excavation by mechanical means (Hydraulic excavator)/ manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth lead upto 50 m and lift upto 1.5 m, as directed by Engineer-incharge All kinds of soil.

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 upto 1.5 m.

Supplying and filling in plinth with sand under floors, including watering, ramming, consolidating and dressing complete.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : 1:2:4 (1 cement : 2 coarse sand (zone-III) : 4 graded stone aggregate 20 mm nominal size)

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 specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level : a)1:1.5:3 (1 cement : 1.5 coarse sand (zone-III) : 3 graded stone aggregate 20 mm nominal size)

Centering and shuttering including strutting, propping etc. and removal of form for all heights : a)Foundations, footings, bases of columns, etc. for mass concrete

Centering and shuttering including strutting, propping etc. and removal of form for all heights : a)Walls (any thickness) including attached pilasters, butteresses, plinth and string courses etc.

Providing, hoisting and fixing above plinth level up to floor five level precast reinforced cement concrete work in string courses, bands, copings,bed plates, anchor blocks, plain window sills and the like, including the cost of required centering, shuttering but , excluding cost of reinforcement with 1:1.5:3 (1 cement : 1.5 coarse sand (zone-III) : 3 graded stone aggregate 20 mm nominal size).

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level. a)Thermo-Mechanically Treated bars of grade Fe-500D or more.

Providing and laying in position ready mixed or site batched design mix cement concrete for reinforced cement concrete work; using coarse aggregate and fine aggregate, Portland Pozzolana / Ordinary Portland / Portland Slag cement, admixtures in recommended proportions as per IS: 9103 to accelerate / retard setting of concrete, to improve durability and workability without impairing strength; including pumping of concrete to site of laying, curing, carriage for all leads; but excluding the cost of centering, shuttering,finishing and reinforcement as per direction of the engineer-in-charge; for the following grades of concrete. Note: Extra cement up to 10% of the minimum specified cement content in design mix shall be payable separately. In case the cement content in design mix is more than 110% of the specified minimum cement content, the contractor shall have discretion to either re-design the mix or bear the cost of extra cement. All works upto plinth level a) Concrete of M35 grade with minimum cement content of 370 kg /cum

Add for using extra cement in the items of design mix over and above the specified cement content therein.

Structural steel work riveted, bolted or welded in built up sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete

Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge. a)Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix) and PQC etc.,

Demolishing brick work manually/ by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of Engineer-in-charge. a) In Cement Mortar

Dismantling manually / by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of Engineer-in-charge : Bituminous road

Providing and fixing G.I. chain link fabric fencing of required width in mesh size 50x50 mm including strengthening with 2 mm dia wire or nuts, bolts and washers as required complete as per the direction of Engineer-in-charge Made of G.I. wire of dia 4 mm

Providing and laying C.C. pavement of mix M-25 with ready mixed concrete from batching plant. The ready mixed concrete shall be laid and finished with screed board vibrator , vacuum dewatering process and finally finished by floating, brooming with wire brush etc. complete as per specifications and directions of Engineer-in-charge. (The panel shuttering work shall be paid for separately). (Note:- Cement content considered in this item is @ 330 kg/cum. Excess / less cement used as per design mix is payable/ recoverable separately).

Construction of granular sub-base by providing close graded Material conforming to specifications, mixing in a mechanical mix plant at OMC,carriage of mixed material by tippers to work site, for all leads & lifts,spreading in uniform layers of specified thickness with motor grader on prepared surface and compacting with vibratory power roller to achieve the desired density, complete as per specifications and directions of Engineer in-Charge. With material conforming to Grade-II (size range 53 mm to 0.075 mm ) having CBR Value-25

Providing, laying, spreading and compacting graded stone aggregate (size range 53 mm to 0.075 mm) to wet mix macadam (WMM) specification including premixing the material with water at OMC in for all leads & lifts, laying in uniform layers with mechanical paver finisher in sub- base / base course on well prepared surface and compacting with vibratory roller of 8 to 10 tonne capacity to achievethe desired density, complete as per specifications and directions of Engineer-in-Charge.

Construction of dry lean cement concrete sub base over a prepared subgrade with coarse and fine aggregate conforming to IS:383, the size of coarse aggregate not exceeding 25 mm, aggregate cement ratio not to exceed 15:1, aggregate gradation after blending to be as per specifications, cement content not to be less than 150 Kg/cum, optimum moisture content to be determined during trial length construction, concrete strength not to be less than 10 Mpa at 7 days, mixed in a batching plant, transported to site, for all leads & lifts, laid with a mechanical paver, compacting with 8-10 tonne vibratory roller, finishing and curing etc. complete as per direction of Engineer-in- charge.

Providing and laying Non Pressure NP-3 class (Medium duty) R.C.C. pipes including collars/spigot 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) 600 mm dia RCC pipes.

Demolishing Dry Road Lean Concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge. a)DRLC

Demolishing WMM manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge. a)WMM

Excavation of soil using hydraulic excavator of 0.90cum bucket capacity including cutting and loading in tippers, trimming of bottom, , and side slopes, in accordance with requirements of lines, Slopes , gradient, cross sections, and filling the excavated available earth in the low lying area and dozing / grading the filled earth to the required slope and gradient including carriage of the earth up to a lead of 2 km from the site including loading , unloading , with all lifts and leads within Airport premises (Inside/outside the Operational area where ever required) as per the direction of Engineer-in-charge. a) All kind of Soil

Providing and Fixing of Polysulphide polymer based sealent, UV resistant, flexible, tear resistant, rubbery, self-leveling, pourable, non-staining sealant, of make STP(Shaliseal PS PG) or equivalent with its respective primer for construction joints/Expansion Joints of size 25 mm wide and 12 mm deep over 30mm dia closed-cell Polyethylene foam back-up rod etc. all complete as per the direction of Engineer in charge.

Providing and fixing Expansion joint filler pad (HD 100) of thickness 25 mm includes cutting and placing in position as per direction of engineer in charge.

Providing and fixing PVC pipe of dia 100 mm (Working pressure of 6 kg/sqm) for weep holes in drain precast cover slab including cutting and position as per the direction of Engineer in charge.

Engagement of structural consultancy for structural design of RCC storm water drain including submission of duly vetted detailed structural drawings and design report with design calculation. Structural design and drawings are to be vetted by Civil Engineering Department of NIT/IIT/Govt.Engineering College as per the direction of Engineer in charge.

Engagement of structural consultancy for structural design of RCC box culvert including submission of duly vetted detailed structural drawings and design report with design calculation. Structural design and drawings are to be vetted by Civil Engineering Department of NIT/IIT/Govt.Engineering College as per the direction of engineer in charge.