WBPWD/RD/EE/MHD/NIT3/26-27/1

Water Bound Macadam Sub Base Water Bound Macadam Sub Base by consolidating Laterite chelly 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 Specifications for Road & Bridge Works of MoRT&H (5th Revision). For Construction of Sub Base by consolidating Laterite (90 mm to 45 mm) Using 1.45 m³ of Laterite (90 mm to 45 mm) / m³

Repairing pot-holes and making up small depressions with ramming or power rolling including screening, cleaning chips or metals and washing, drying as necessary and heating the chips or metal where necessary, cutting pot holes to regular shapes with vertical edges, cleaning the disintegrated materials, heating matrix and applying tack coat (including sides), finishing the top of repaired surface levelled with adjoining area, including cost and carriage of stone aggregates and matrix, excluding cost of applying tack coat. With Pakur variety premixed Chips (22.4 mm @ 0.60 m3 and 11.2 mm @ 0.40 m3) with 54 kg of bitumen VG - 30 (Pkd.) per m3 of loose net volume of stone chips and Anti Stripping Agenet @ 0.5% by weight of binder (VG - 30 Pkd.) [depending up on size and stripping value of the aggregates] Using Mobile HMP (Light Duty). (The payment is to be made on the basis of loose net volume of stone materials consumed in the work)

Providing and applying tack coat with Cationic Bitumen Emulsion 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). On Bituminous surface. (Using MS grade Packed Bitumen emulsion @ 0.250 kg per sqm.)

Providing, laying and rolling of Open - graded premix surfacing of 20 mm thickness composed of 13.2 mm size (@ 0.018 m³ per m²) and 11.2 mm size (@ 0.009 m³ per m²) Pakur variety 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 [VG - 30 (Pkd.)] @ 1.46 kg / m2 and Anti Stripping Agenet @ 0.5% by weight of binder (VG - 30 Pkd.) [depending up on size and stripping value of the aggregates] carrying the mixture by any suitable arrangements, laying the mixture uniformly over the surface with pre application of tack coat using bitumen emulsion, including line, grade and level to serve as wearing course on a previously prepared base, including mixing in Mobile Hot Mix Plant (Light Duty) 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 Mobile Hot Mix Plant (Light Duty) and other machinery, pay of operators, cost of fuel and lubricants etc. complete to be followed by seal coat of either Type A or Type B as per Technical Specification Clause 508 for Rural Roads of MORD.

Providing and laying Premixed Seal Coat (Type B) with Pakur variety Stone grit @ 0.6 m3/ 100 m2 and bitumen binder on thoroughly cleaned black top surface coated with tack coat, including heating and mixing cleaned grit (100 % passing through 2.36 mm sieve and retained on 180 micron sieve) uniformly with bitumen binder, 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 as per Clause 511 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). By Manual Means With Hot Bitumen Binder VG - 30 (Pkd.) (@ 6.80 kg / 10 sqm.) and Anti Stripping Agenet @ 0.5% by weight of binder (VG - 30 Pkd.) [depending up on size and stripping value of the aggregates]

Dressing and chilchalling Road flanks including cutting and filling with earth up to 150 mm average thickness finished with outward cross-grade of 1 in 30.

GST @ 18% on Item no 1.00 to 6.00

Labour Welfare Cess @ 1% on Item no 1.00 to 7.00