RWD/RANCHI/32/ STPKG/03/2023-24 Strengthening of Road from (1) Soso Rahe Road to Bundiyaru Nischitpur via Darha (Length-4.20 Km.) (2) Nawadih to Basantpur via Pogra (Length-3.10 Km.) (3) Sataki Road Nawatoli to Serengdih via Ramdera (Length-4.80 Km.

(Strengthening of Road from Soso Rahe Road to Bundiyaru Nischitpur via Darha (Length-4.20 Km.)) Scarifying the existing bituminous road surface to a depth of 50 mm and disposal of scarified material with in all lifts and lead upto 1000 metres. By Mechanaical Means using Motor Grader

Dismantling of flexible pavements Dismantling of flexible pavements and disposal of dismantled materials up to a lead of 1000 metres, stacking serviceable and unserviceable materials separately By Manual means Granular courses

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

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.

Bituminous Macadam Grading-II with VG-30 Grade Packed Bitumen Providing and laying bituminous macadam with higher capacity hot mix plant using crushed aggregates of specified grading premixed with bituminous binder, transported to site, laid over a previously prepared surface with paver finisher to the required grade, level and alignment and rolled as per clauses 501.6 and 501.7 to achieve the desired compaction.

Tack Coat on Bituminous surfaces Providing and applying tack coat with bitumen emulsion using emulsion pressure distributor at the rate of 0.20 kg per sqm on the prepared bituminous surface cleaned with mechanical broom.