UIDF 2024-25

RBR-EECD-2 ii: Scarifying the existing B.T surface to a depth of 50 mm by Mechanical means and disposal of scarified material with all leads and lifts upto 1000 Mtrs as per MoRT&H (5th Revision) Specn. No.305.4.3

RBR-EECD-8(c) : Earthwork excavation for road way in soil by mechanical means by using Hydraulic excavator including cutting and pushing the earth to side of embankment upto a lead of 100 metres including trimming bottom and side slopes in accordance with requirements of lines, grades and cross sections etc., complete for finished item of work for trench cutting as per MOR&H specification No.301 and as directed by the Engineer-in-Charge.

Construction of Granular sub-base by providing close graded material confirming to Grading - VI of MoRT&H Table 400-1 including cost and conveyance of all materials to work site and spreading in uniform layers with motor grader or by approved means, on prepared surface mixing by mix in place method with approved means at OMC and compacting with vibratory roller to achieve the desired density etc., complete for finished item of work as per MoRT&H Specification 401 (5th revision) and as directed by the Engineer-in-charge.

RBR-SBBS-11.B : 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 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.

RBR-BASC-1(b): Providing and applying primer coat with bitumen emulsion CSS-1(H) on prepared surface of granular Base including clearing of road surface and spraying primer at the rate of 0.70 kg/sqm using mechanical means as per Tech. specification No 502 MORTH.

RBR-BASC-2(V): Providing and applying tack coat with bitumen emulsion (RS-1) using emulsion pressure distributor at the rate of 0.275 kg per sqm on the prepared granular surfaces treated with primer and cleaned with mechanical broom as per Tech. specification No 503 MORTH. (Application: Prior to laying of Bituminous Macadam)

RBR-BASC-9: 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 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.