Strengthening of Paonta Rampurghat road km 0/0 to 5/600. (SH Providing and laying GSB wet Macadam, 50mm thick Bituminous Macadam and 30 mm thick bituminous concrete in RD. 1/250 to 2/300) under Industrial Deposit.

Amount

Construction of granular sub base by providing well graded material spreading in uniform layers with tractor mount grader on prepared surface mixing by mix in place method with rotavator at OMC and compacting with smooth wheel rollar to achieve the desired density,complete as per technical specification clause 401 for grading I material including carriage of material within all leads, lifts and other incidentals complete as per direction and entire satisfaction of Engineer in charge.

Scarifying the existing bitumenous road surface to a depthe of 150 mm with a lift upto 3 m and lead upto 1000 m as per Technical Specification clause 301.40 with in all leads, lifts and carriage as per direction and entire satisfection of Engineer in Charge.

Providing, laying , spreading and compacting graded stone aggregates to wet mix macadam specification including spreading the material with water at OMC in mechanical mixute(Pug mill) carriage of material by tipper to site, laying in uniform layer in sub base/base course on a well prepared sub base compacting with smooth wheel roller of 80-100KN weight to achieve the desired density including lighting,barricating and maintenance of diversion etc.as per table 400.11 and 400.12 and material specification claused 406 by mechanical means including haulage of material within all leads, lifts and other incidentals complete as per direction and entire satisfaction of Engineer in charge. (By Mechanical means)

Providing and applying priming coat with bitumen emulsion (SS-1) at the rate of 0.70k to 1.00 kg (zero point seven zero to one point zero kilogram) per square metre of the prepared granular surface cleaned with hydraulic broom as per Technical specification Clause 502 including haulage of material within all leads, lifts and other incidentals complete as per direction and entire satisfaction of Engineer in charge.

Providing and applying tack coat with bitumen emulsion(RS-1) using emulsion distributor at the rate of 0.25 kg to 0.30 kg per square meter in the prepared bituminous surface cleaned with hydraulic broom as per technical specification clause 503 including hauling/ carriage of materials through alll modes of transportation with in all leads and lifts as per direction of the Engineer-in-Charge.

Provinding and laying 50mm compacted thick bituminous macadam with crushed aggregate of grading -II 19mm nominal size, using bitumen VG-30 grade, minimum 3.3% of weight of mix on thoroughly cleaned surfece, free from pot holes and cracks by mechanical broom and dust removed by compressed air, mixed in batch mix/computerised hot mix plant of 100-120 tonne per hour capacity calibrated from time to time, mixing to bituminous concrete as approved job mix formula from approved laboratory, transporting the mix material in clean insulated vehicles covered while in transit or awaiting, tipping and laying with sensor paver finisher to the required level and grade, rolling with power road roller and vibratory road roller to achieve the desired density including profile correction with in all leads, lifts and carriage as per direction and entire satisfection of Engineer in Charge.

Providing and laying 30 mm thick compacted bitumenous concrete with aggregate of grading II,13 mm nominal size using bitumen VG-30 grade minimum 5.5% of weight of mix on thoroughly cleaned surface, by mechanical broom and dust removed by compressed air,mixed in computerised batch mix hot plant of 100-120 tonne per hour capacity calibrated from time to time, mixing of bitumenous concrete as per approved job mix formula from approved laboratory,transporting the mixed material in clean insulated vehicles covered while transit or awaiting, tipping and laying with sensor paver finisher to the required level and grade, rolling with smooth wheeled vibratory and tandem road roller to achieve the desired density complete including profile correction layer and patching of pot holes with in all leads and lifts including carriage of material, plant and equipments by mechanical transport confirming to clause 508 of MORTH (road wing) specification for road and bridge work including hauling/ carriage of materials through alll modes of transportation with in all leads and lifts as per direction of the Engineer-in-Charge.

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