Periodic Maintenance on Patrighat to Goverta Road Km. 0/0 to 6/0

Amount

Providing, laying, spreading and compacting stone aggregates of 53mm to 22.5mm (fifty three millimetre to twenty two point five millimetre) nominal size to water bound macadam specifications including laying in uniform thickness, hand packing, rolling with smooth wheel roller 80-100kN in stages to proper grade and camber, applying and brooming, stone screening and binding materials to fill up the interstices of coarse aggregate, watering and compacting to the required density grading-III as per technical specifications clause 405 by manual means including entire carriage of materials within all leads and lifts and other incidentals.

Repair to pot holes by removing of loose material, trimming of sides, cleaning of surface than providing tack coat,at the rate of 0.300 kg per square metre of road surface with bitumen VG-10 followed by 20 mm (twenty millimetre) thick compacted premix carpet using 1.46 kg of bitumen VG-10 and 0.027 cubic metre of crushed stone aggregate of proper grading per square metre ground surface mixed and leated to proper tempreture in mixed 6-10 tone capacity of roller to desired density with 8 to 10 tone weight static road roller followed by seal coat IRC type-B using 0.68 Kg of bitumen VG-10 and 0.086 cubic metre of sand per square metre of road surface duly mixed and leated in mix all to the required tempreture properly rolled after laying with 8-10 tone weight static road roller to the required density as per technical specition clause 1904.02 and the direction of the Engineer-in -charge.

Providing and applying primer coat with bitumen emulsion (SS-1) on prepared surface of granular base including cleaning of road surface and spraying primer at the rate of 0.70-1.0 kg/sqm (Zero decimal seven zero to one kilogramme per square metre) using mechanical means as per Technical Specification Clause 502 including haulage of materials with in all leads, lifts and carriage of materials and as per the directions of the Engineer-in-Charge.

Providing and applying tack coat with Bitumen emulsion (RS-1) of approved manufacturer using emulsion distributor at the rate of 0.25 to 0.30 kg per sqm (Zero decimal two five to zero decimal three zero kilogramme per kilogramme per square metre ) on the prepared dry and hungry bituminous surface cleaned with Hydraulic broom as per Technical Specification Clause 503 including haulage of materials with in all leads, lifts and carriage of materials and as per the directions of the Engineer-in-Charge.

Providing and laying 30 mm (thirty millimetre) thick compacted bituminous concrete with aggregate of grading-II (two) 13 mm (thirteen millimetre) nominal size using bitumen VG-30 (thirty) grade with bitumenious binder of 5.4 (five decimel five percent) to 5.6 % (five decimel six percent) by weight of mix on thoroughly cleaned surface by mechanical broom and dust removed by compressed air, mixed in computerised batch mix hot mix plant of 100-120 TPH (one hundred to one hundred twenty tonne per hour) capacity calibrated from time to time, mixing of bituminous concrete as per approved job mix formula from approved laboratory, transporting the mixed material in cleaned insulated vehicles covered while in 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 potholes within all leads and lifts including carriage of materials, plant and equipments by mechanical transport conforming to clause 509 of MoRT&H (road wing) specification for road and bridge work.

Providing and applying 2.5 mm (two point five millimetre) thick road marking strips (retro- reflective) of specified shade/ colour using hot thermoplastic material by fully/ semi automatic thermoplastic paint applicator machine fitted with profile shoe, glass beads@ 250 gms per sqm area using dispenser, propane tank heater and profile shoe heater, driven by experienced operator on road surface including cost of material, labour, T&P, cleaning the road surface of all dirt, seals, oil, grease and foreign material etc. complete as per direction of Engineer-in-charge and accordance with applicable specifications.

Smt. Meera Devi

Kamlesh Kumar Negi

SUNIL KUMAR