NHIDCL/RO/SGR/M and R/2021-22/02

Amount

SH: 1. WBM- III & Bituminious Macadam & Bituminous Concrete.

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.

Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with 3 wheeled steel/ vibratory roller 8-10 tonnes in stages to proper grade and camber, applying and brooming requisite type of screening/ binding Materials to fill up the interstices of coarse aggregate, watering and compacting to the required density.

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 0.60 kg/sqm using mechanical means.

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

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/granular surface cleaned with mechanical broom.

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 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. 509 complete in all respects

SH: Construction of Retaining Walls

Earthwork in excavation by manual means/mechanical means in trenches for foundations of drains, pipes cables etc. over areas not exceeding 1.50 mtr in width & 10 sqm on plan Soil = 70% (35% Manual means, 35% Mechanical means), OR =30%

P/L in positon cement concrete of specified grade 1:3:6 in foundation including cost of formwork

P/L in positon cement concrete of specified grade 1:2:4 using 20mm nominal size crushed including cost of formwork for Parapets and coping

Random Rubble stone manually with hard nallah stone in foundations upto plinth with 1:6 cement mortar

Dry Random Rubble stone masonory using hard nallah stones in Panels of R/Walls.

Back filling behind R/Walls, wing walls, Return wall etc.

SH: Construction of B/Wall

Earthwork in excavation by manual means in trenches for foundations of drains, pipes cables etc. over areas not exceeding 1.50 mtr in width & 10 sqm on plan Soil = 70% (35% Manual means, 35% Mechanical means), OR =30%

P/L in position cement concrete of specified grade 1:2:4 using 20mm nominal size

Random Rubble stone manually with hard nallah stone in foundations upto plinth with 1:6 cement mortar

Back filling behind R/Walls, wing walls, Return wall etc.

SH: 4. Construction of Crate Wall

Earthwork in excavation by manual means in trenches for foundations of drains, pipes cables etc. over areas not exceeding 1.50 mtr. in width & 10 sqm on plan. Soil = 70% (35% Manual means, 35% Mechanical means), OR = 30%

Plain cement concrete 1:3:6 nominal mix in foundation with crushed stone aggregate 20 mm nominal size mechanically mixed, placed in foundation and compacted by vibration including curing.

Providing and laying of Gabian Crates including cost of stones and crates

Back filling behind R/Walls, wing walls, Return wall etc.

SH: 5 Construction of CrossDrainage work(Causeway/scupper)

P/L in position cement concrete of specified grade1:2:4 using 20 mm nominal size crushed aggregate including formwork etc.

SH: Clearance of Land Slide

Clearance of land slides in soil and ordinary rock.

Disposal of mulba including loading/ unloading excluding haulage Qty vide item no. 1 @ 50%

Haulage of materils by tipper (excluding loading / unloading), avg . Lead 5Kms Qty vide item no. 2 x 1.60 x 5

SH: 7. Road Marking

Providing and applying 2.5mm thick road marking strips (retro-reflective) of specified shade/colour using hot thermoplastic material by fully/semi[1]automatic thermoplastic paint applicator machine fitted with profile shoe, glass beads dispenser, propane tank heater and profile shoe heater, driven by experienced operator on road surface including cost of material, labour, T&P, cleaning the road surface of all dirt, seals, oil, grease and foreign material etc. complete as per direction of Engineer-in-charge and accordance with applicable specifications.

SH: 8. W Beam Crash Barrier

Providing and erecting a "W" metal beam crash barrier comprising of 3 mm thick corrugated sheet metal beam rail, 70 cm above road/ground level, fixed on ISMC series channel vertical post, 150 x 75 x 5 mm spaced 2 m centre to centre, 1.8 m high, 1.1 m below ground/road level, all steel parts and fitments to be galvanised by hot dip process, all fittings to conform to IS:1367 and IS:1364, metal beam rail to be fixed on the vertical post with a spacer of channel section 150 x 75 x 5 mm, 330 mm long complete as per clause 810

M/S DUWA CONSTRUCTIONS

MS RK Construction and Builders Pvt Ltd