WBHIDCO/GM E-II/AA-III/NIT-01/2026-2027

Labour for picking up existing metalled road surface to a specified average depth including screening & stacking the pavement materials. c. For average depth above 75 mm but not exceeding 150 mm by manual means: ii. Brick / Jhama metal surface.

Earthwork in cutting to form road section in correct profile including removal of spoils not exceeding initial lead of 50 m and initial lift of 1.5 m. (Mode of measurement: pre works and post works) i. In ordinary soil.

A. Compacting original ground supporting subgrade loosening of the ground upto a level of 300 mm below the subgrade level, watered, graded and compacted in layers to meet requirement of Tables 300.1 and 300.2 for subgrade construction as per Clause 305.3.4 of Specifications for Road & Bridge Works of MoRT&H (5th Revision)

Construction of sub-base course with reusing of existing brick bats / jhama metal (60 %) mixed with new jhama metal of 40 % in ratio, spreading using front end loader over prepared subgrade & compacting the same as sub-base course except the use of screening or binding materials all complete and as per direction of Engineer-in-charge. (reuse of 60 % serviceable materials) i. For Construction of subbase by compacting 1st class brick aggregates (40 mm down) & sand (in proportion of 60:40).

Providing, laying, spreading & compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with vibratory roller 8-10 tonnes in stages to proper grade & camber, applying & brooming requisite type of screening / binding materials to fill up the interstices of coarse aggregate, watering including lighting, guarding, barricading & making necessary earthen bundh of one metre width on each side & preparing the bed by necessary cutting or filling including cost of all materials & hire & labour charges of all men & machinery & compacting to the required density, as per Clause 404 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). iii. Grading-II Aggregate (53 mm to 22.4 mm) Using Stone Screening Type B (11.2 mm) B. Manual Means.

Providing & applying primer coat with Cationic Bitumen Emulsion of approved grade conforming to IS: 8887-1978 & requisite quantity on prepared surface of granular base including cleaning of road surface & spraying primer using mechanical means including cost & carriage of bitumen emulsion & all other incidental costs of work complete as per Clause 502 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). i. For WBM / WMM Surface: with primer @ 0.70-1.0 Kg/m2

Providing & laying bituminous macadam with Hot Mix Plant using approved crushed aggregates of specified grading as per Table 500.7 premixed with bituminous binder, transported to site laid over a previously prepared surface at specified laying temperature with paver finisher to the required grade, level & alignment & rolled with suitable power roller for break down, intermediate & finished rolling as per specification to achieve the desired compaction including cost & carriage of stone materials & bitumen, hire charges of machinery & equipment, cost of fuel & lubricants & wages of operational staff, quality control complete as per Clause 504 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). B. For Grading 2 (19 mm nominal size & 50 thick) ii. Using Drum mix Type HMP of minimum capacity 60-90 TPH. Quantity same as Item No. 6

Providing & laying Semi-Dense Bituminous Concrete (SDBC) as wearing coarse by Hot Mix Plant, using coarse aggregates, fine aggregates, filler materials & binder of required specification & grading as per approved job mix formula, over thoroughly cleaned surface coated with tack coat including screening, cleaning of aggregates, mixing the components as per approved Job Mix Formula with hot binder, carrying the mixture by tipper truck or any other approved suitable arrangements, laying the mixture uniformly, maintaining the specified laying temperature, thorough rolling with power roller with necessary hand packing & pinning to give an uniform surface to achieve the desired density of at least 98 % of that of Laboratory Marshall Specimen, including the cost & carriage of aggregates, filler & binder, heating the binder, preheating the aggregates & filler to the specified temperature including the hire charges of Hot Mix Plant & other machineries, pay of operators, cost of fuel & lubricants & all other incidental charges complete. B. For Grading 2 (10 mm nominal size & 25 mm thick) ii. Using Drum mix Type HMP of minimum capacity 60-90 TPH

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