SOPD_G_19_20_26 Re-construction of road by providing SDBC from From Ch. 3.35 to 22.28 km on Kokrajhar Ramfalbil road (Partly PMGSY and Partly Non-PMGSY) under SOPD- G for the year 2019-20, Kokrajhar East LAC

Amount

WBM Grading 3 Using stone screening Type-B 11.2 mm for Gr.III Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with smooth wheel roller 80-100 kN in stages to proper grade and camber, applying and brooming, stone screening to fill-up the interstices of coarse aggregate, watering and compacting to the required density Grading 3 as per Technical Specification Clause 405. (A) By Manual Means

Medium porosity Providing and applying primer coat with Bitumen emulsion (SS-1) on prepared surface of granular base including cleaning of road surface and spraying primer at the rate of 0.90- 1.2 kg/sqm using mechanical means as per Technical Specification Clause 502.

Providing and applying tack coat with Bitumen emulsion (RS-1) using emulsion distributor at the rate of 0.25 to 0.30 kg per sqm on the prepared granular surfaces treated with primer & cleaned with Hydraulic broom as per Technical Specification Clause 503.

Semi - Dense Bituminous Concrete (Providing and laying semi dense bituminous concrete 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 @ 4.5 to 5% of mix and filler transporting the hot mix to work site, laying with a hydrostatic paver finisher with sensor control to the reqd. grade, lavel and alignment,rolling with smooth wheeled,vibratory and tandem rollers to achieve the desired compaction as per MoSRT&H cl. no.508. complete in all respect. A. With hydrated lime/cement as filler ( refer table 500-9 of MoSRT&H specification) (I) with 60/70 or VG-30 grade bitumen for GradingII(10 mm nominal size)

Providing reflective pavement marker with Micro prismatic lens in both direction having thermoplastic body adhering to the specification and guidelines of MoSRT&H’s fixed to the road surface using the adhesives and the procedures recommended by the manufacturers with three months replacement warranty and free maintenance.

(B) Semi Reflective Traffic Signs I. Providing and fixing of semi reflective cautionary, mandatory and informatory sign board as per IRC:67 made of 1.5 mm thick MS Sheet duly stove white colour in front and gray colour on back with red reflective border of 65 mm width and required letters and figures with reflective tape engineering grade as per Clause 1701.3.9 of MORD for Rural Roads of required shade and colour supported and welded on 47mm x 47 mm x 12 SWG sheet tube firmly fixed to the ground by mean of properly designed foundations with M-15 grade cement concrete 450x450x600 mm, 600 mm below ground level as per approved drawing Clause 1701.2.2 i. 900mm equilateral triangle

A. Retro-reflectorised Traffic Signs Providing and erecting direction and place identification retro-\reflectorised sign as per IRC:67 made of encapsulated lens type reflective sheeting vide Clause 1701.2.3, fixed over aluminium sheeting, 2 mm thick with area exceeding 0.9 sqm supported on mild steel angle iron posts 75 mm x 75 mm x 6 mm, 2 Nos. firmly fixed to the ground by means of properly designed foundation with M-15 grade cement concrete 450 mm x 450 mm x 600 mm, 600 mm below ground level as per approved drawing and Technical Specification Clause 1701

(B) Semi Reflective Traffic Signs Providing and fixing of semi reflective cautionary, mandatory and informatory sign board as per IRC:67 made of 1.5 mm thick MS Sheet duly stove white colour in front and gray colour on back with red reflective border of 65 mm width and required letters and figures with reflective tape engineering grade as per Clause 1701.3.9 of MORD for Rural Roads of required shade and colour supported and welded on 47mm x 47 mm x 12 SWG sheet tube firmly fixed to the ground by mean of properly designed foundations with M-15 grade cement concrete 450x450x600 mm, 600 mm below ground level as per approved drawing Clause 1701.2.2 v. 600mm x 450mm rectangular

Providing and laying of hot applied thermoplastic compound 2.5 mm thick including reflectorising glass beads @ 250 gms per sqm area, thickness of 2.5 mm is exclusive of surface applied glass beads as per IRC:35 .The finished surface to be level, uniform and free from streaks and holes and conforming to the MoSrt&H specifications

Construction of speed breaker of 7.5 m full formation width, 3.7m wide in longitudinal direction and 0.1 m hump by excavation in shoulders and then providing GSB - 150mm, WBM-II - 75mm and WBM-III - 75mm thick in shoulder to make level with existing hard crust followed by 0.1m hump with bituminous course of BM and SDBC all over the road formation width including providing reflective pavement marker and painting two coats over humps with road marking paints as shown in the drawing and analysed items as per Technical Specification.

Construction of speed breaker of 9 m full formation width, 3.7m wide in longitudinal direction and 0.1 m hump by excavation in shoulders and then providing GSB - 150mm, WBM-II - 75mm and WBM-III - 75mm thick in shoulder to make level with existing hard crust followed by 0.1m hump with bituminous course of BM and SDBC all over the road formation width including providing reflective pavement marker and painting two coats over humps with road marking paints as shown in the drawing and analysed items as per Technical Specification.

Sudhang Kumar Brahma

DHANANJAY BASUMATARY

SAKENDRA BASUMATARY