Resurfacing of Pawanhans Taxi and Apron at Juhu Airport.

Amount

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-in-charge. a) All kinds of soil

Providing stone soling / stone pitching for level / base course with stone of size 100mm to 225mm laid in courses and required profile with hamper dressed stones including preparing the edding surface etc. with screenings and filler materials ( combination of aggregate and stone dust etc.) including packing, ramming and dressing, etc. complete and as per directions of Engineer-in-charge. (Payment shall be made for compacted thickness).

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

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

12 mm cement plaster of mix : a) 1:4 (1 cement: 4 coarse sand)

Providing and laying in position machine batched and machine mixed design mix M-25 grade cement concrete for reinforced cement concrete work, using cement content as per approved design mix, including pumping of concrete to site of laying but excluding the 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.“(Note :- Cement content considered in this item is @ 330 kg/cum.“Excess/ less cement used as per design mix is payable/recoverable separately). a)All works upto plinth level

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

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

Providing and applying tack coat using hot straight run bitumen of Viscosity grade VG - 10 (80/100) confirming IS:73 including heating the bitumen, spraying the bitumen with mechanically operated spray unit fitted on bitumen boiler, cleaning and preparing the existing Runway/Road surface as per specifications complete in all respects as per direction of Engineer-in-charge. If the actual quantity of bitumen varies from the quantity of bitumen shall be done as per rate in actual supply voucher from nearest refinery at the time of execution. The rate of VG-10 bitumen exclusive of GST shall only be considered for payment. 0.35 Kg / sqm on existing bituminous surface

Providing and laying bituminous macadam using crushed stone aggregates of specified grading premixed with bituminous binder, transported to site by tippers, laid over a previously prepared surface with paver finisher equiped with electronic sensor to the required grade, level and alignment and rolling with smooth wheeled, vibratory and tandem rollers as per specifications to achieve the desired compaction and density, complete as per specificatons and directionsof Engineer-in-Charge. a) 50 to 100 mm average compacted thickness with bitumenof grade VG-30 @ 3.50% (percentage by weight of total mix) prepared in Drum Type Hot Mix Plant of 60-90 TPH capacity.

Providing and laying of Hot Mix Semi Dense Asphaltic Conccrete (SDAC) using crushed stone aggregate of quality,size and grading as specified and grading as specified and cement as filler of quality as specified and Viscosity Grade Bitumen (supplied in bulk) in proportions as per job mix formula and laid to specified levels, grade and chamber as per specification,drwaings and as directed by the Engineer in charge includinging compacting with 8-10 tonne,preferably vibratory road roller of adequate capacity to achieve the specified values of compaction,strenght,surface accuracy complete. (For tendering purpose VG bitumen of grade *(VG-10/VG-20/VG-30) content shall be taken as 120kg/m3 of mix supplied in bulk produced by Govt.Refineries and 2% cement by weight of aggregate as filler material).

Providing and laying of Hot Mix Dense Asphaltic Conccrete (DAC) using crushed stone aggregate of quality,size and grading as specified and cement filler of quality as specified and Viscosity Grade Bitumen (supplied in bulk) in proportions as per job mix formula and laid to specified levels,grade and chamber as per specification,drwaings and as directed by the Engineer in charge includinging compacting with 8-10 tonne,preferably vibratory road roller of adequate capacity to achieve the specified values of compaction,strenght,surface accuracy complete. (For tendering purpose VG bitumen of grade *(VG-10/VG-20/VG-30) content shall be taken as 135kg/m3 of mix supplied in bulk produced by Govt.Refineries and 2% cement by weight of aggregate as filler material).

Providing and laying Non Pressure NP-4 class (Heavy 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) 900 mm dia RCC pipes

Painting runway/taxi track/apron marking with adequate nos of coatsmto give uniform finish with road marking paint of superior make as\ approved by the Engineer-in-charge, i/c cleaning the surface of ail dirt, scales, oil, grease and other foreign material etc. and lining out complete (a) New work (Two or more coats)

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