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| 1 | Picking up and removing old bituminous layer orsand sealing coat from old black topped surfaceand cleaning the exposed surface by scraping andstacking the material as directed. (a) By manual means : (i) From 25 mm to 50 mm thick. Cold milling of Bituminous Pavement surface upto the required depth by mechanical means using milling machine, without disturbing the under laying layers, to proper line and level, cleaning the surface properly after milling and removing the loose materials, stacking themilled materials for re-use, necessary guarding, barricading & lighting, including hire charges of machinery, cost of fuel and labour and other incidental charges all complete and as per direction of Engineer-in-charge. (i) For depth upto 100mm |
| 2 | Providing and laying Bituminous Profile CorrectiveCourse using Mobile Hot Mix Plant (Light Duty) andusing aggregates of Grading-2 of Table-33 premixedwith 75kg of bitumen per cum, transported to sitelaid over a previously prepared surface at specifiedlaying temperature to the required grade, level andalignment, 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 direction of Engineer-incharge. |
| 3 | Open-Graded Premix Surfacing using Bituminous(Viscosity grade Paving Bitumen / Modified bitumen)Binder and Mobile Hot Mix Plant (Light Duty)Providing, laying and rolling of Open - graded premixsurfacing 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 any suitablearrangements, laying the mixture uniformly over thesurface, including line, grade and level to serve aswearing course on a previously prepared base,including mixing in Mobile Hot Mix Plant (Light Duty)and thoroughly rolling with a smooth wheeled roller8-10 tonne capacity, finished to required level andgrades including the cost and carriage of stonechips and matrix, heating the matrix, preheating theaggregates to required temperature and includingthe hire charges of Mobile Hot Mix Plant (Light Duty)and other machinery, pay of operators, cost of fueland lubricants etc. complete to be followed by sealcoat of either Type A or Type B as per TechnicalSpecification Clause 508 for Rural Roads of MORD. |
| 4 | Providing and laying Premixed Seal Coat (Type B)with approved quality sand/grit @ 0.6 m3/ 100 m2and bitumen binder on thoroughly cleaned blacktop surface coated with tack coat, including heatingand mixing cleaned sand/grit (100 % passing through2.36 mm sieve and retained on 180 micron sieve) uniformly with bitumen binder, laying and spreadingthe 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 as per Clause 511 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). I By Mechanical Means (i) With Hot Bitumen Binder (@ 6.80 kg / 10 sqm.) |
| 5 | Tack CoatProviding 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 achinery 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.) |
| 6 | Water Bound Macadam Sub BaseWater Bound Macadam Sub Base by consolidating Jhama metal / Laterite chelly or stone metal / shingles of specific size in hard crust to requisite thickness (measured after compaction) in layers including screening of metals etc. as necessary, hand packing, sweeping, watering and rolling in stages with power roller to proper line, grade and camber, lighting, guarding & barricading and making necessary earthen bundh of one metre width on each side where necessary to protect edges and preparing the bed by necessary cutting or filling and rolling all complete including the cost of all materials and hire and labour charges of all men and machineries and compacting to the required density, as per Clause 404 of pecifications for Road & Bridge Works of MoRT&H (5th Revision).(i) For Construction of Sub Base by consolidatingJhama metal (63 mm to 45 mm) with moorumscreening : |
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