RO-Aizawl/Maint./2021-22/VS/1

Amount

Bush clearence : Clearing road side vegetation, brush wood mooli bamboos, overgrown grass including removal etc. along existing road side, and disposal of the cut bushes down hill side of the road formation. This jungle clearance should includes minimum height of Clearance of 4.5m from top of pavement on uphill side of the road including road shoulder and all the bushes on the shoulder and down hill side of the road.

Land slide clearence: Clearance of land slides in soil and ordinary rock by a bull-dozer D 80 A-12, 180 HP and disposal of the same on the valley side)

Scarification of Existing Bituminous surface: 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.

Hill Side Drain Clearance Removal of earth from the choked hill side drain and disposing it on the valley side manually

Hiring of Dozer (as and when required)

Maintenance of Earth Shoulder (stripping excess soil) (Stripping excess soil from the shoulder surface to achieve the approved level and compacting with plate compactor) Both Sides

Maintenance of Earthen Shoulder (filling with fresh soil) (Making up loss of material/ irregularities on shoulder to the design level by adding fresh approved soil and compacting it with appropriate equipment.) Both Side of Road

Granular Sub base (GSB) - Grading-IV Material: Construction of granular sub-base by providing the material, spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator at OMC, and compacting with vibratory roller to achieve the desired density.

Wet mix Macadum (WMM): 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.

Prime coat: 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 shown in 500-1 using mechanical means

Tack coat on WMM : Providing and applying tack coat with bitumen emulsion using emulsion pressure distributor at required rate on the prepared bituminous/granular surface cleaned with mechanical broom.

Tack coat on DBM: Providing and applying tack coat with bitumen emulsion using emulsion pressure distributor at required rate on the prepared bituminous/granular surface cleaned with mechanical broom.

Tackcoat on existing bituminous surface: Providing and applying tack coat with bitumen emulsion using emulsion pressure distributor at required rate on the prepared bituminous surface cleaned with mechanical broom.

Dense Bituminous Macadum (DBM) (Black Spot Rectification - Grading II (19 mm nominal size): Providing and laying dense bituminous macadam with 100-120 TPH batch type HMP producing an average output of 75 tonnes per hour using crushed aggregates of specified grading, premixed with bituminous binder @ 4.0 to 4.5% by weight of total mix 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

Bituminous concrete : Grading-I ( 13 mm nominal size ): Providing and laying bituminous concrete with 100-120 TPH batch type hot mix plant producing an average output of 75 tonnes per hour 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 MORTH specification clause No. 509 complete in all respects.

Retaining Wall 5m height: (As per detailed estimate enlcosed in RFP)

Gabion Retaining Wall 9m height: (As per detailed estimate enlcosed in RFP)

Road side drain (Type I and Type II): (As per detailed estimate enlcosed in RFP)

Pipe Culverts ( 01 New and 01 Extension) (As per detailed estimate enlcosed in RFP)

Blockage clearences (20 Nos of Pipe) (As per detailed estimate enlcosed in RFP)