Civil Works for Improvement of Engineering College Road, Heirok

Clearing and grubbing road land including uprooting rank vegetation , grass, bushes, shrubs, saplings and trees girth upto 300 mmm, removal of stumps of trees cut earlier and disposal of unsericeable materials and stacking of serviceable material tobe used or auctioned, upto a lead of 1000 meters including removal and disposal of top organic soil not exceeding 150 mm in thickness ( BY Mechanical Means using Motor Grader) ( A) In area of Light Jungle

Excavation in Soil using Hydraulic Excavator and Tippers with disposal upto 1000 meters. (Excavation for road work in soil with hydraulic excavator including cutting and loading in tippers, trimming bottom and side slopes, in accordance with requirements of lines, grades and cross sections, and transporting to the embankment location within all lifts and lead upto 1000m)

Providing, laying and compacting granular base/ sub base according to lines, grades and cross-sections by using naturally occured sand gravel/conforming to IRC-Grd-II of MOST specification free from organic or other deleterious constituent spread with motor grader and compacted by rolling with power roller of 8-10 capacity in layers not exceeding 150 mm (spread thickness) i/c rolling of the road surface to proper level and grades 30 cm width edging on both sides etc. complete as directed by Engineer-in-charge.

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. Wet Mix Macadam (Plant Mix Method)

(1) Prime Coat on WMM/WBM - Providing and applying primer coat with 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. (2) 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 (Providing and laying bituminous macadam with 100-120 TPH hot mix plant producing an average output of 75 tonnes per hour 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) (ii) for Grading-II (19 mm nominal size) (b) VG-30

Bituminous Concrete (Providing and laying bituminous concrete with higher capacity batch type hot mix plant using crushed aggregates of specified grading, premixed with bituminous binder @ 5.2 per cent 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 MORTH specification clause No. 507 complete in all respects. (II) for grading -II ( 10 mm nominal size ) (b) VG-30

Earth work in excavation of foundation of structures as per drawing and technical specification, including setting out, construction of shoring and bracing, removal of stumps and other deleterious matter, dressing of sides and bottom and backfilling with approved material. (I) Ordinary soil. B) Mechanical Means (Depth upto 3m)