RWD/RANCHI/ 79/ 2024-25 Construction of Road from Chaingarha High School to Palani via Gamharia (Length-3.89 km.)

Dismantling of cement concrete pavement Dismantling of cement concrete pavement by mechanical means using pneumatic tools, breaking to pieces not exceeding 0.02 cum in volume and stock piling at designated locations and disposal of dismantled materials up to a alead of 1000 metres, stackiung serviceable and unserviceable materials separately

Clearing grass and removal of rubbish up to a distance of 50 metres outside the periphery of the area by manual means

Clearing and grubbing road land including uprooting rank vegetation, grass, bushes, shrubs, sapling and tress girth upto 300 mm, removal of stumps of tree cut earlier and disposal of unserviceable materials and stacking of sericeable material to be used of auctioned, up to a lead of 1000 metres including removal and disposal of top organic soil not exceeding 150mm in thickness. By Manual means:- In area of light jungle

Compacting Original ground Case I Compacting Original ground supporting sub-grade Loosening of the ground upto a level of 500 mm below the sub-grade level, watered, graded and compacted in layers to meet requirement of Table 300-2 for sub-grade construction.

Construction of Embankment with Material Deposited from Roadway Cutting. 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 Table 300-2.Rate per cum after adding royalty@Rs 27.48/cum

Construction of Subgrade and Earthen Shoulders Construction of sub-grade and earthen shoulders with approved material obtained from Borrow pits with approved material obtained from borrow pits with all lifts and leads, transporting to site, spreading, grading to required slope and compacting to meet requirement of Table 300-2.

By Mix in Place Method Construction of granular sub-base by providing close graded material, spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with front end loader at OMC, and compacting with vibratory roller to achieve the desired density, complete as per clause 401. Rate per cum for grading-I Material

Wet Mix Macadam (Plant Mix Method) 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 grader in sub- base / base course on well prepared surface and compacting with vibratory roller to achieve the desired density.

Prime Coat over WMM/WBM Providing and applying primer coat with SS1 grade 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. With Emulsion SS1 IS8887 (HDPE)

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.