OR-27-831 L029-RD Road to Chengili under PMGSY IV (Batch-I)

BTRoad Clearing and grubbing road land including uprooting wild vegetation, grass, bushes, shrubs, saplings and trees of girth up to 300 mm, removal of stumps of trees cut earlier and disposal of unserviceable materials and stacking of serviceable material to be used or auctioned, up to a lead of 1000 metres including removal and disposal of top organic soil not exceeding 150 mm in thickness as per MORD technical specification cluase 201.1. & direction of Engineer-in-charge (by manual means).

Dismantling of existing structures like culverts, bridges, rataining walls and other structures comprising of cement concrete including T&P and scaffolding wherever necessary, sorting the dismantled material, disposal of unserviceable material and stacking the serviceable material with all lifts and lead of 1000m as per technical specification clause 202 and as per direction of the Engineer-in-Charge.

Construction of embankment with approved materials deposited at site from roadway cutting and excavation from drain and foundation of other structures graded and compacted to meet requirement of Tables 300.1 and 300.2 as per Technical Specification Clause 301.5 and as per the direction of the Engineer in charge.

Construction of embankment with approved material obtained from borrow pits with all leads and lifts, transporting to site, spreading, grading to required slope and compacting to meet requirement of Tables 300.1 and 300.2 by mechanical means as per Technical Specification Clause 301.5 and as per the direction of the Engineer in charge.

Construction of granular sub-base Gr.III using Grading III Material (As per IRCSP:77-2008) Well Graded Granular Sub-Base Material by providing well graded material, spreading in uniform layers with tractor with ordinary grader on prepared surface mixing by mix in place method with rotavator at OMC and compacting with smooth wheel roller to achieve the desired density, complete as per Technical Specification Clause 401 of MoRD and as per direction of Engineer-In-Charge.

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 (moorum sand addmixture) to fill-up the interstices of coarse aggregate, watering and compacting to the required density as per Technical Specification Clause 405 of MoRD & as per direction of Engineer-in-Charge. Grading-II

Grading-III

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 of MoRD for low porosity surface. and as per direction of Engineer-In-Charge.

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 granular surfaces treated with primer & cleaned with Hydraulic broom as per Technical Specification Clause 503 of MoRD. and as per direction of Engineer-In-Charge.

Providing ,laying and rolling of Mix Seal Surfacing (MSS) close-graded premix surfacing materials of 20mm thickness composed of 11.2mm to 0.9mm (Type-A) or 13.2 mm to 0.9 mm (Typa-B) aggregates using penetration grade bitumen to required line ,grade and level to serve as wearing course on a previously prepared base ,including mixing in a suitable plant ,laying and rolling with as three wheel 8-10KN static roller and finishing to required level and grades as per Techinical specification Clause 509.