WBMAD/CIVIL/42/SL5/2025-2026

Box cutting or filling in Road embankment in all sorts of soil including spreading the spoils properly over the flank as necessary or on berm to approximate grade & camber and rolling the sub-grade with powerroller to proper camber and grade as per direction and satisfaction of Engineer-in-charge including uprooting and removing plants and jungles when and where necessary.a) Depth up to 150 mm

Construction of Sub Base using Local Materials , spreading in uniform layers with Motor grader on prapared surface , including screening the metal as necessary mixing by mix in place method with Rotavator at OMC and compacting with vibratory roller to acchieve the desire density, lighting , guarding and barricading including cost and carriage of all materials and making neccessary earthen bundh of one metre wide on each side protect the edges complete as per clause 401 of specification for road & Bridge works of MoRT&H (5th Revision) (ii) For Construction of Sub Base by compacting stone chips and sand (in proportion of 40:60).

Wet Mix Macadam Base Course Providing, laying, spreading and compacting graded stone aggregate to Wet Mix Macadam specification including screening of aggregates and granular materials, premixing the material with water at OMC in Wet Mix Plant, carriage of mixed material by tipper to site, laying in uniform layers with Paver in Sub- base / Base course on well prepared surface and compacting with Vibratory Roller to achieve the desired density, including supply of all materials, machinery, fuel and lubricants, including incidental costs for lighting, guarding, barricading, making earthen bundh to protect the edges including cost of quality control complete as per Clause 406 of Specifications for Road & Bridge Works of MoRT&H (5th Revision).

Providing and applying primer coat with CationicBitumen Emulsion of approved grade conforming to IS: 8887-1978 and requisite quantity on prepared surface of granular base including cleaning of road surface and spraying primer using Mechanical means including cost and carriage of bitumen emulsion and 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/sqm)

Providing and applying tack coat with Cationic Bitumen Emulsion of approved grade conforming to IS:8887-1978 on the prepared surface cleaned with Hydraulic broom, moistening the surface including cost and carriage of emulsion, hire charges of machinery and labour, cost of fuel and lubricants all complete as per Clause 503 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). ii) On Granular surfaces treated with primer (Using Bitumen emulsion at the rate of 0.25 to 0.30 kg per sqm.)

Providing and applying tack coat with Cationic Bitumen Emulsion of approved grade conforming to IS:8887-1978 on the prepared surface cleaned with Hydraulic broom, moistening the surface including cost and carriage of emulsion, hire charges of machinery and labour, cost of fuel and lubricants all complete as per Clause 503 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). (i) On Bituminous Surface (Using Bitumen Emulsion at the rate of 0.20 to 0.30 kg per sqm.)

Providing and laying bituminous macadam with Mobile Hot Mix Plant (Light Duty) 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 by means of approved and suitable arrangements to the required grade, level and alignment and rolled with suitable power roller for break down, inter-mediate and finished rolling as per specification to achieve the desired compaction including cost and carriage of stone materials and bitumen, hire charges of machinery and equipment, cost of fuel and lubricants and wages of operational staff, quality control complete as per Specifications for Road & Bridge Works of MoRT&H (5th Revision).

Providing, laying and rolling of Open - graded premix surfacing of 20 mm thickness composed of 13.2 mm (@0.018 m³ per m²) and 11.2 mm (@ 0.009 m³ per m²) size stone aggregates, including thoroughly cleaning of the surface, screening, cleaning and pre-heating stone chips and fully pre-coating the same either using viscosity grade paving bitumen or cut-back or emulsion, carrying the mixture by tipper trucks or by any other suitable arrangements, laying the mixture uniformly over the surface with paver finisher, including manual operations as and when required for proper line, grade and level to serve as wearing course on a previously prepared base, including mixing in Hot Mix Plant and thoroughly rolling with a smooth wheeled roller 8-10 tonne capacity, finished to required level and grades including the cost and carriage of stone chips and matrix, heating the matrix, preheating the aggregates to required temperature and including the hire charges of Hot Mix Plant and other machinery, pay of operators, cost of fuel and lubricants etc. complete as per Clause 510 of Specifications for Road & Bridge Works of Morth (5th revision),(a) Using Mobile HMP (Light Duty)

Supplying & Laying a single layer, 25 mm thick Mastic Asphalt Wearing Course in road pavement/bridge decks using approved coarse aggregate, fine aggregate, filler material and bitumen, including cost and carriage of all ingredients, cost of heating aggregates and binder, mixing in specified proportions conforming to approved Job Mix Formula, laying the mix, compacting, sealing the construction joints and surface finishing conforming to specifications, construction procedure and quality control vide Section 515 of Specifications of Road & Bridge Works (4th Revision) published by IRC, including the hire charge of all tool, plants & machineries, pay of operators, cost of fuel and lubricants and all other incidental charges and quality control complete.

Providing & laying Premixed Seal Coat (Type B) with approved quality sand/grit @ 0.006 m3/ 100 m2 and hot bitumen binder on throughly cleaned black top surface coated with tack coat, including heating and mixing cleaned sand/grit (100% passing through 2.36mm sieve and retained on 180u sieve) uniformly with hot binder (@ 113.5 kg. per m3 of grit or sand in suitable pan / Mobile Hot Mix Plant (Light duty), laying and spreading the mix at an uniform rate using suitable means, brushing the surface, if necessary, to ensure uniformity, followed by rolling with power roller including the cost and carriage of binder and aggregates, cost of heating the binder and aggregates and all other incidental charges, cost of fuel and lubricants, including hire charges of machineries, tools & plants required for construction and quality control complete excluding cost of applying Tack Coat

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