Construction and Maintenance of L117-RD Road to Rekhapai (OR-27-689) under PMGSY IV (Batch-I)

B.T. ROAD : 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).

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 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.

Providing Construction of granular sub-base Gr-III by providing well graded material, spereading in uniform layers with tractor 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 MORD Technical Specification clause 401 and as per direction of Engineer in Charge.

Providing, laying, spreading and compacting graded stone aggregates to Wet Mix Macadam (WMM) specification including premixing the materialnwithb water at OMC in mechanical mixer(pug Mill) , carriage of mix material by tipper to site,laying in uniform layers with paver in sub base or base course on well prepared sub-base and compacting with smooth wheel of 80-100kn roller to achive the desired density including lighting ,barricading and maintenance of diversion etc as per Tables 400.11 & 400.12 and Technical specifications clause 406.

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 close-graded premix surfacing materials of 25mm 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 8-10KM static roller and finishing to required level and grades as per Techinical specification Clause 509. (By Mechanical)

Construction of Panelled cement concrete pavement, thickness as per design, over a prepared sub-base, with 43 grade cement or any other type as per Clause 1501.2.2, M30 (grade) coarse and fine aggregates conforming to IS:383, maximum size of coarse aggregate not exceeding 25mm mixed in a concrete mixer of not less than 0.2 cum capacity and appropriate weigh batcher using approved mix design, laid in approved fixed side formwork (steel channel, laying and fixing of 125 micron thick polythene film, wedges, steel plates including levelling the form work as per drawing), spreading the concrete with shovels, rakes, compacted using needle, screed and plate vibrators and finished in continuous operation including provision of contraction and expansion, construction joints, applying debonding strips, primer, sealant, dowel bars near approaches to bridges and culverts (expansion joints), admixtures as approved, curing of concrete slabs for 14 days, curing compound and water finishing to lines and grade as per drawing and Technical Specification Clause 1501.

Fine dressing &Turfing including transportation of turfs by mechanical means with all leads & lifts and placing of turfs in position and ramming with thapies including watering and cost of labour & all materials etc. complete as per direction of Engineer - in - charge.