BT PATCHES

Clearing and grubbing road land including uprooting wild vegetation, grass, boshes, shrif, saplings and trees of girth upto 300 mm, removal of stumps of such trees cut carlier and disposal of unserviceable materials and stacking of serviceable material to be used of auctioned, upto a lead of 1000 m including removal and disposal of top organic soil not exceeding 150 mm in thickness as per Technical Specification Clause 201 MORD complete.

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, ete 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 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 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 laying Semi Dense Bituminous Concrete with 100-120 TPH batch type hot mix plant producing an average output of 37.5 tonnes per hour using crushed aggregates of specified grading, premixed with bituminous binder @ 4.5 to 5 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. 508 complete in all respects