Improvement of road from Keiphundai on NH 37 to tousem Phase II SH Portion 2 36.00 km to 56.65 km

Excavation in hilly area soil with dozer with lead upto 1000 m( Excavation for road way in soil by mechanical means including cutting and transportating the earth to skite of embankment/dumping area with lead upto 1000m including trimming bottom and side slopes in accordance with requirements of line. grades and cross sections).

Excavation in hill area in ordinary rock by mechanical means not required blasting. (Excavation in ordinary rock in hilly area ma manual means including cutting and trimming of side slopes and disposing of excavated earth with all lift and lead upto 1000 m).

Construction of embankment with Material Deposited from Roadway Cutting(Construction of embankment with approved material deposited at site from roadway cutting and excavation from drain and foundation of other structures gradedand compacted to meet mrequirement of table 300-2)

Providing,laying and compacting granular base/sub-base with naturally occuring sand gravel material free from organic or other deleterious constituents spreading with motor grader and compacted by rolling with power roller of 8 to 10 tone capacity in layers not exceeding 150mm (Spread thickness)

Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with 3 wheeled steel/vibratory roller in stages to proper grade and camber, applying and brooming requisite type of screening/binding materials to fill-up the interstices of coarse aggregate, watering and compacting to the required density. (A) By Manual Means. (ii) Grading-I (a) Using screening crushable type such as moorum or gravel.

(ii) Grading-II (a) Using screening crushable type such as moorum or gravel.

Prime coat (Providing and applying primer coat with bitumen emulsion on prepared surface of granular Base including clearing of road surface and spraying primer at the rate of 0.60 kg/sqm using mechanical means.) A). Prime Coat on WMM / WBM i) Providing and applying primer coat with bitumen emulsion on prepared surface of granular Base including clearing of road surface and spraying primer at the rate of 0.70 kg/sqm using mechanical means.

Tack Coat on Granular surfaces treated with primer Providing and applying tack coat with bitumen emulsion using emulsion pressure distributor at the rate of 0.25 kg per sqm on the prepared bituminous surface cleaned with mechanical broom.

Providing and laying semi dense bituminous concrete with 40-60 TPH batch type HMP producing an average output of 35 tonnes per hour using crushed aggregates of specified grading, premixed with bituminous binder @ 5 per cent of mix and filler, transporting the hot mix to work site, laying with a hydrostatic paver finisher with sensor control to the required grade, level and alignment, rolling with smooth wheeled, vibratory and tandem rollers to achieve the desired compaction as per MoRTH specification clause No. 508 complete in all respects. (ii) for GradingII(10 mm nominal size).