Road work

Amount

Providing and applying tack coat using hot straight run bitumen of grade VG-10, including heating the bitumen, spraying the bitumen with mechanically operated spray unit fitted on bitumen boiler, cleaning and preparing the existing road surface as per specifications:

On bituminous surface @0.50 Kg/sqm

2 cm premix carpet surfacing with 1.8 cum and 0.90 cum of stone chippings of 13.2mm size and 11.2 mm size respectively per 100 sqm and 52 kg and 56 kg of hot bitumen per cum of stone chippings of 13.2 mm and 11.2 mm size respectively, including a tack coat with hot straight run bitumen, including consolidation with road roller of 6 to 9 tonne capacity etc. complete (tack coat to be paid for seperately).

With paving Asphalt grade VG-10 heated and then mixed with solvent at the rate of 70 grams per kg of asphalt.

Providing and laying Bitumen Peneteration Macadam with hard stone aggregate of quality, size and grading as specified, with bitumen of suitable peneteration grade, including required key aggregate as specified, spreading coarse aggragate with the help of self propelled/ tipper tail mounted aggregate spreader and applying bitumen by a pressure distributor and then spreading key aggregate with the help of aggregate spreader complete, including consolidation with roadroller of minimum 8 to 10 tonne capacity to achieve specified values of compaction and surface accuracy:

For 50 mm compacted thickness using coarse aggregate of size 50-20 mm graded @ 0.60 cum per 10 sqm key aggregate of size 12.5 mm graded @0.15 cum per 10sqm with asphalt paving asphalt grade VG-10 @50kg/ 10sqm.

Providing and laying seal coat of premixed fine aggregate (passing 2.36 mm and retained on 180 micron sieve) with bitumen using 128 kg of bitumen of grade VG-10 bitumen per cum of fine aggregated 0.60 cum of fine aggregate per 100 sqm of road surface, including rolling and finishing with road roller all complete.

Routine Maintenance after completion of work

Routine maintenance cost for 1st Year

Routine maintenance cost for 2nd Year

Routine maintenance cost for 3rd Year

Routine maintenance cost for 4th Year

Routine maintenance cost for 5th Year

ROBIN MAZUMDER

Mantu Mondal