NHIDCL/RO-Agt/W/T/k -K(Pkg-II)/308-Part(2)

Dismantling of DBM & BC Layer: Dismantling of flexible pavements and disposal of dismantled materials with all lifts and upto a lead of 100 m, stacking serviceable materials and unserviceable materials separately as per MoRT&H Technical Specification Clause 202. ( II ) By Mechanical Means A) Bituminous Courses

Dismantling of CTSB & WMM Layer: Dismantling of flexible pavements and disposal of dismantled materials with all lifts and upto a lead of 100 m, stacking serviceable materials and unserviceable materials separately as per MoRT&H Technical Specification Clause 202. ( I ) By Manual Means (B) Granular Courses

CTSB: Cement Treated Crushed Rock or combination as per clause 403 and table 400.4 in Sub base/ Base: Providing, laying and spreading Material on a prepared subgrade, adding the designed quantity of cement to the spread Material, mixing in place with rotavator, grading with the motor grader and compacting with the road roller at OMC to achieve the desired unconfined compressive strength and to form a layer of sub-base/base as per MoRT&H Technical Specification Clause 403. (A) For Sub - Base Course.

WMM: Providing, laying, spreading and compacting graded stone aggregate to wet mix macadam specification including premixing the Material with water at OMC in mechanical mix plant carriage of mixed Material by tipper to site, laying in uniform layers with paver finisher in sub- base / base course on well prepared surface and compacting with vibratory roller to achieve the desired density as per MoRT&H Technical Specification Clause 406.

Prime Coat: 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 0.6 kg/sqm using mechanical means as per MoRT&H Technical Specification Clause 502.

Tack Coat: Providing and applying tack coat with bitumen emulsion (RS-1) using emulsion pressure distributor at the rate of 0.20 kg per sqm on the prepared bituminous / granular surface cleaned with Hydraulic broom as per MoRT&H Technical Specification Clause 503.

DBM: Providing and laying dense graded bituminous macadam with 100-120 TPH batch type HMP producing an average output of 75 tonnes per hour using crushed aggregates of specified grading, premixed with bituminous binder @ 4.0 to 4.5 per cent by weight of total 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 MoRT&H specification clause No. 505 complete in all respects Grade II With Viscosity Grading Bitumen of VG-30.

BC: Providing and laying bituminous concrete with higher capacity batch type hot mix plant using crushed aggregates of specified grading, premixed with bituminous binder @ 5.40 Percent 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. 507 complete in all respects grade II With Viscosity Graded Bitumen of VG-30.

Hill Side Drain Clearance: Removal of earth from the choked hill side drain and disposing it on the valley side manually as per MoRT&H technical specification Clause 3000

C&G: Clearing and grubbing road land including uprooting wild vegetation, grass, bushes, shrubs, saplings and trees of girth upto 300 mm, removal of stumps of such trees cut earlier and disposal of unserviceable materials and stacking of serviceable material to be used or auctioned, upto a lead of 1000 m including removal and disposal of top organic soil not exceeding 150 mm in thickness as per MoRT&H Technical Specification clause 201. (I) By Manual Means - (A) In area of light jungle