BT ROAD

Scarifying the existing B.T surface to a depth of 50 mm by Mechanical means and 1 disposal of scarified material with all leads and lifts upto 1000 Mirs as per MoRT&H (5th Revision) Specn. No.305.4.3

Providing, laying, spreading and compacting graded stone aggregate to Wet Mix Macadam specification including premixing the material with water at OMC in mechanical mixer (Pug Mill), carriage of mixed material by tipper to site, laying in uniform layers in sub-base/base course on a well prepared sub-base and compacting with smooth wheel roller of 80 to 100kN / Vibratory Roller 80-100 kN weight to achieve the desired density including lighting, barricading and maintenance of diversion, etc as per Tables 400.11 & 400.12 and Technical Specification Clause 406 MORD / MORTH for finished item of work.

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 0.70-1.0 kg/sqm using mechanical means as per Technical Specification Clause 502 MORD (for use on Wet mix macadam & WBM) etc., complete as per S.S. and as per directions of the departmental authorities. (Low porosity)

Providing and laying Bituminous Macadam with 100-120 TPH / 40-60 TPH hot mix plant producing an average output of 75 tonnes/ 37.50 t 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 as per Tech. specification No. 504 MORTH etc., complete in all respects for finished item of work as per directions of the departmental authorities

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 as per Tech. specification No 503 MORTH.

Providing 25 mm thick compacted semi dense bituminous concrete by hot mix plant using hard blasted granite crushed aggregate of grading-II premixed with bituminous binder V.G.30 grade @ 5.00 per cent of mix and filler, transporting the hot mix to work site, laying with a Mechnical paver finisher to the required grade, level and alignment, rolling with smooth wheeled, vibratory and tandem rollers to achieve the desired compaction as per MoRTH specification complete for finished item of work in all respects as directed by Engineer-in-charge.Note: The percent of bitumen is proposed for rate analysis only. The actual percent shall be arrived based on job mix formula.

Collection and spreading of good gravel including cost and conveyance of all materials to work site all labour charges and stacking to departmental guage etc., complete as per SS for berms