Construction of Coal Transportation Road from old view point of MKD-III OCM to Truck Receiving Station of MKD-I Coal Handling Plant of MKD- I Expansion OCM of Umrer Area

Excavation in Soil using Hydraulic Excavator and Tippers with disposal upto 1000 metres: Excavation for roadwork in soil with hydraulic excavator including cutting and loading in tippers, trimming bottom and side slopes in accordance with requirement of lines, grades and cross section, and transporting to the embankment location with all lifts and lead upto 1000 m as per relavant clauses of section-300 of specification.

Granular Sub base with well graded Material (CBR>30 or more) (Table 400-1 & Table 400-2): Construction of granular sub base by providing well graded material like natural sand crushed gravel or crushed stone having CBR>30, spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator or plant mix method at OMC , and compacting with vibratory rollers of 80 to 100 kN static weight to achieve the desired density complete as per Clause 401 of Specification.Plant mix method. For Grading I Material

Granular Sub base with well graded Material (CBR>30 or more) (Table 400-1 & Table 400-2): Construction of granular sub base by providing well graded material like natural sand crushed gravel or crushed stone having CBR>30, spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator or plant mix method at OMC , and compacting with vibratory rollers of 80 to 100 kN static weight to achieve the desired density complete as per Clause 401 of Specification.Plant mix method. For Grading III Material

Wet Mix Macadam : 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 paver in sub-base / base course on well prepared surface and compacting with vibratory roller to achieve the desired density in accordance to Table No 400-12,400-13 and as per clause of section 406 of specifications.

Providing and applyong tack coat with low viscosity bitumen of VG 10 grade using bitumen pressure sprayer on the prepared bituminous/ granular surface cleaned with mechanical broom and as per relavant clauses of section - 503 of specifications @ 0.40 kg per sqm (Non-bituminous surfaces) granular base not primed.

Bituminous Macadam : Provising and laying bituminous Macadam 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 and as per clause 504 of specifications. Using Batch mix Plant of appropriate capacity and paver finisher Hydraustatic with Sensor. For Grading II (19 mm nominal size) bitumen content 3.5%.

Providing and applyong tack coat with low viscosity bitumen of VG 10 grade using bitumen pressure sprayer on the prepared bituminous/ granular surface cleaned with mechanical broom and as per relavant clauses of section - 503 of specifications @ 0.25kg per sqm (normal bituminous surfaces)

Bituminous Concrete: Providing and laying bituminous concrete using crushed aggregates of specified grading, premixed with bituminous binder @ 5.4 to 5.6% 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 clause 507 of specification. for Grading-1 (50-65 mm thickness) with 60/70 bitumen (VG-30)

Seal Coat : Providing and laying seal coat sealing the voids in a bituminous surface laid to the specified levels, grade and cross fall using Type A and B seal coats all complete as per clause 511 of specification. Case II: Type B (Providing and laying of premix sand seal coat with HMP of appropriate capacity not less than 75 tonnes/ hours using crushed stone chipping (aggregate shall pass 2.36mm sieve and retained to 180 micron sieve) and penetration bitumen of suitable grade all complete as per clause 511 of specification.