Repair work at Kolana airstrip, Jhalawar

Filling pot-holes and patch repairs with open-graded premix surfacing, 20mm thick compacted with bitumen binder VG10 @14.60 kg/10 sqm and aggregate in Hot Mix Plant, transporting the mixed Material with tipper and laying manually to the required level and grade, rolling with power roller, 8-10 tonne, removal of all failed Material, trimming of completed excavation to provide firm vertical faces, cleaning of surface, painting of tack coat on the sides and base of excavation as per clause 503, back filling the pot-holes with hot bituminous Material as per Clause 511, compacting, trimming and finishing the surface to form a smooth continuous surface, all as per clause 3004.2 including cost of tack coat and including cost of seal coat type B with lead for mix of Material 1 km. (MoRTH specification : Clause 3004.2)

Providing and laying Dense Bituminous Macadam on prepared surface with specified graded crushed aggregates (as per table 500-9, 500-10 and design mix) for base/binder course including loading of Material with F.E. loader, heating of binder (including cost of anti stripping compound, wherever required) aggregates and filler in hot mix plant (40-60 TPH), transporting the mixed Material by tippers and laying with sensor paver finisher as per clause 504.3.5 to the required level and grade, rolling by self propelled power rollers and vibratory rollers or pneumatic tyred roller, 150-250 KN. TP=0.7 Mpa, to achieve the desired density (approved by the department) but excluding primer/tack coat. (MoRTH specification : clause 505, 112). with all lead & lift (a) 50-75mm compacted thickness with 4.5% bitumen content VG30 grade with lead of mixed Material 1 km

Providing and laying Bituminous Concrete as per Design Mix on prepared surface with specified graded stone aggregates as per Table 500-17, for wearing course including loading of aggregates with F.E. loader and hot mixing of binder (including cost of anti-stripping compound, wherever required) and 3% cement filler with aggregates in Hot Mix Plant 40-60 TPH, transporting the mixed Material with tipper to paver and laying with sensor paver finisher (as per clause 504-3.5) to the required level, grades and rolling with vibratory compactor and pneumatic tyred roller 150-250 kN, TP = 0.7 Mpa, to achieve the desired density (approved by the department as per job mix) excluding cost of primer/tack coat. (MoRTH specification : clause 507).30-45mm compacted with 6% binder with lead of mix Material 1 km (a) With straight run bitumen grade VG30

Providing and applying tack coat on the prepared surface, with bitumen VG10 as per IS:8887 & manufacturer’s specifications @0.2 kg/sqm with a self propelled or towed bitumen pressure sprayer equipped for spraying the Material uniformly at specified rates and temperatures (including cleaning of road surface) as per MoRTH specification Cl. 502, 112.