Miscellaneous civil Works at Tuticorin Airport SH Bituminous work in operational area of Tuticorin 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 for all lift,as directed by Engineer-in- charge

Extra for compaction of earthwork in embankment under optimum moisture conditions to give at least 95%of the maximum dry density (proctor density).

Construction of Embankment with Moorum having CBR not less than 20% obtained from approved quarry with all lifts and leads, transporting to site, spreading, grading to required slope and compacting to meet requirement of morth table 300-2

Preparation 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 mechanical transport to work site, for all leads and lifts, spreading in uniform layers of specified thickness with mechanical means including neatly leveling & dressing on prepared surface and compacting with vibratory power roller to achieve the desired density, complete and as per direction of Engineer-in-charge: Conforming to Grading-I requirement.(size range 75 mm to 0.075 mm) having CBR Value-30

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 mechanical mix plant, carriage of mixed material by mechanical transport to site, 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 achieve the desired density, complete as per specifications and directions of Engineer-in-Charge.

Providing and applying primer coat with bitumen emulsion SS1 grade conforming to IS:8887 on prepared surface of Granular Base including clearing of surface and spraying primer at the rate of 0.70 kg/sqm using mechanical means complete in all respects as per direction of Engineer-In-Charge.The contractor shall quote his rates assuming quantity of bitumen emulsion as 0.70 Kg/Sqm.If the actual quantity of bitumen emulsion varies from the quantity assumed above,necessary cost adjustment for deviation in the quantity of bitumen emulsion shall be done as per rate in actual supply voucher from nearest refinery at the time of execution.The rate of bitumen emulsion exclusive of GST shall only be considered for payment.

Providing and laying of Hot Mix Dense Bituminous Macadam(DBM)using crushed stone aggregate of quality,size and grading as specified and #filler as specified and Viscosity Grade Bitumen (supplied in bulk)in proportions as per job mix formula and laid to specified levels,grade and camber as per specification,drawings and as directed by the Engineer-in-Charge including compacting with 8-10 tonne, preferably vibratory road roller of adequate capacity to achieve the specified values of compaction,strength,surface accuracy complete [for tendering purpose VG bitumen of grade VG-30 shall be taken as 110 kg/m3 of mix supplied in bulk produced by Govt. Refineries and 2% stone dust by weight of aggregates as filler material].

Providing and applying tack coat (using bitumen emulsion (Rapid setting)complying with IS:8887 ,spraying the bitumen with mechanically operated spray unit at the rate specified below,cleaning and preparing the existing pavement 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 specified,necessary cost adjustment for deviation in 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 bitumen exclusive of GST shall only be considered for payment. a) 0.20 Kg/Sqm on existing bituminous surface

Providing and laying of Hot Mix Semi Dense Asphaltic Concrete (SDAC)using crushed stone aggregate of quality,size and grading as specified and filler as specified and Viscosity Grade Bitumen (supplied in bulk)in proportions as per job mix formula and laid to specified levels,grade and camber as per specification,drawings and as directed by the Engineer-in-Charge including compacting with 8-10 tonne preferably vibratory road roller of adequate capacity to achieve the specified values of compaction,strength,surface accuracy complete [for tendering purpose VG bitumen of grade VG-30 content shall be taken as 120 kg/m3 of mix supplied in bulk produced by Govt.Refineries and 2% stone dust by weight of aggregates as filler material].

DMW Infrastructures India Private Limited (BID ID -889875)