Renewal of the following roads by SDBC in Chamba and Thauldar Block of Tehri under Annual Repair 2021-22 Ranichori Nakot Motor road (km 1 to 6) and Silkyara Bangaon Chapda Sarot Motor Road (km 98,99)

Amount

WBM Grading 3 Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with three wheel 80-100 kN static roller in stages to proper grade and camber, applying and brooming, crushable screening to fill-up the interstices of coarse aggregate, watering and compacting to the required density Grading 1 as per Technical Specification Clause 405. By Manual Means

Ranichori to Nakot Motor road

Prime Coat Low porosity 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 using mechanical means as per Technical Specification Clause 502

Ranichori to Nakot Motor road

Providing and applying tack coat with Bitumen emulsion (RS-1) using emulsion distributor at the rate of 0.25 to 0.30 kg per sqm on the prepared dry and hungry bituminous surface cleaned with Hydraulic broom as per Technical Specification

Ranichori to Nakot Motor road

Silkyara Bangaon Chapda Sarot Motor Road

Bituminous Macadam Providing and laying bituminous macadam with hot mix plant using crushed aggregates of grading as per Table 500.4 premixed with bituminous binder, transported to site upto a lead of 1000 m laid over a previously prepared surface with paver finisher to the required grade, level and alignment and rolled to achieve the desired compaction as per Technical Specification Clause 504. (Bitumen VG-10 @ 3.3% of the weight of mix has been used for analysis purpose. The choice of bitumen will depend upon the prevailing site conditions and shall be in accordance with Clause 504 of MORD)

Ranichori to Nakot Motor road

Silkyara Bangaon Chapda Sarot Motor Road

Providing and laying Semi Dense Bituminous Concrete 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 @ 4.5% 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 MoRTHspecification complete in all respects Grading II - 10mm using VG - 10 bitumen

Ranichori to Nakot Motor road

Silkyara Bangaon Chapda Sarot Motor Road

Clearance of hill side Katcha drain by removal of earth from the chocked hill side drain and disposing it on the vally side manually as directed by enguneer in charge including supply of all material, labour, T&P etc.

Ranichori to Nakot Motor road

Silkyara Bangaon Chapda Sarot Motor Road

Ranichori to Nakot Motor road

Silkyara Bangaon Chapda Sarot Motor Road

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