NHIDCL/RO-Imphal/U-T-T/OR/Km 0.00-Km 60/2020-21

Amount

Earth work in excavation of foundation of structures as per drawing and technical specification,including setting out, construction of shoring and bracing, removal of slumps and other deleterious matter, dressing of sides and buttom, backfilling the excavation earth to the extent required and utilising the remaining earth locally for work. Ordinary soil (a) Mechanical means(depth upto 3 meter) Ordinary soil. Mechanical means

Earth filling with surplus soil excavated from foundation and taken only from outside of building plinth in 15 cm layers, including running watering and consolidation lead 30 meters. Ordinary soil

Providing, laying, spreading and compacting stone aggregate of specific sizes Water Bound Macadam specification including spreading in uniform thickness, hand packing, rolling with power roller 8-10 tonnes in stages to proper grade and camber, applying and broowing requisite type of screening & binding materials to fill up the interstices of coarse aggregates, watering and rolling making necessary earthern bund to protect edges, lighting, gruading, barricading, and maintenance of diversion etc in accordance with clause 404 of Minsitry of Road Transport & Horhways Specidfications for Road and Bridge Works (Fifth REvision) by Mechanical means. For Grading - III Material

Providing and applying primer coat with bitumen emulsion on prepared surface of granular base including cleearing of road surface and spraying primer using mechanical means (a) on WBM/WMM surface @ 0.70 - 1.00 kg/sqm as per clause 502 of Ministry of Road Transport and Highways specifications for Road and Bridge works(Fifth Revesion)

Providing and applying tack coat with bitumen emulsion using emulsion pressuring distributor method on the prepared bituminous/granular surface cleaned with mechanical broom. (i) On normal bituminous surface @ 0.20 - 0.30 kg/sqm

Providing and laying and rolling of open-graded premix surfacing of 20 mm thickness composed of 13.2 mm to 5.6 mm aggregates either using penetration grade bitumen or cutback or emulsion to the required line, grade and level to serve as wearing course on a previously prepared base including mixing in a suitable Plant and rolling with smooth wheeled rollers 8-10 tonne capacity, and finishing to required level and grade. (A) Mechanical method using penetration grade bitumen and HMP of appropriate capacity not less than 75 tonne/hour

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. (i) Case - I : Type A

Filling Pot-holes and Patch Repairs with open graded premix surfacing , 20mm. Removal of all failed material, trimming of completed excavation to provide firm vertical faces, cleaning of surface, painting of tack coat on the sides and base of excavation as per clause 503, back filling the pot holes with hot bituminous material as per clause 511, compacting, trimming and finishing the surface to form a smooth continuous surface, all as per clause 3004.2

Hill side drain clearance. Removal of earth from the choked hill side drain and disposing it on the valley side manually.

Land Slide Clearance in soil Clearance of land slides in soil and ordinary rock by a bulldozer D 80 A-12, 180 HP and disposal of the same on the valley side.

Clearing and grubbing road land including uprooting rank vegetation , grass, brush shrubs, saplings and tress of girth upto 300 mm romoval of unserviceable materials and stacking of serviceasble of materials upto 100 mm from road boundary. A) By manual means) i) In area of light jungle

Plain cement concrete, M15 mix with stone aggregate 20mm, nomonal size mechanically mixed and vibrated in foundation up to 1.5 m below ground/bed level and or 1.5m above ground/bed level i/c formwork.

Random rubble masonary (uncoursed) in cement sand mortar 1:3 in foundation upto a depth of 1.5m and 1.5m above ground/bed level

Providing weep holes in plan concrete/reinforced concrete abutment, wing wall/return wall complete as per drawing and technical specification

Filter medium behind abutment, wing wall and return wall complete as per drawing and techincal specification

M/S Ramthakur Construction

K. Lamhao Pou