Maintenance of road namely, 1) from NH-8 to Kalachara Bazar via Sericulture Office. (L- 0.720 km) (Portion from 0.520 km). ii) Us Taisama road to Dhinu Dhan Para. (L - 1.400 km) (Portion from 0.670 km to 1.145 km)

Flat Brick Soling. Providing and laying flat brick soling layer on prepared subgrade according,filling joints with Earth free from clay with a plasticity index not execeding 6,watering and rolling the same with three whecled road roller 80-100 Km as per MoRD Technical Specifical Clause 412.

iv) Brick egging laid length wise Providing and laying brick edging laid length wise on prepared subgrade according to grades and cross section shown on the drawing, filling joints with sand,watering and rolling the same with three wheeled road roller 80-100KN as per MoRD TechnicalSpecification Clause 412

Water Bound Macadam Sub-Base / Base using Jhama Brick Aggragate 2) WBM Grading 3.Providing, laying, spreading and compacting jhama brick aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing rolling with three wheel roller 80-100 KN in stages to proper grade and camber, applying and brooming binding materials to fill up the interstices of coarse aggregate, watering and compacting to the required density Grading- 3 as per MoRD Technical Specification Clause 405. (A) By Manual Means

Prime Coat . (i) Low porosity Providing and applying prime coat with bitumen emulsion(SS-1) on prepared surface of granular base including cleaning of road surface and spraying primer at the rate of 0.70- 1.00 kg/sqm using mechanical means as per MoRD Technical Specification Caluses 502.

Tack Coat: (iii) Providing and applying tack coat with bitumen emulsion (RS-1) using emulsion distributor at the rate of 0.25 to 0.30 kg per sqm on the prepared granular surface treated with primer & cleaned with Hydraulic broom as per MoRD Technical Specification Clause503.

20mm thick open –graded premix carpet using Bituminous (viscosity grade / Modified bitumen) binder. Providing & laying rolling of open –graded carpet of 20mm thickness composed of 13.2mm to 5.6mm aggt.Either using penetration grade bitumen of emulsion to required line, grade & level to serve as wearing course on a previously prepared base in/c. mixing in a suitable plants, laying & rolling with a three wheel 80-100km static roller capacity, finished to required level & grades to be followed by seal coat of either type A or type B C or type D as per MoRD technical specification clauses 508. Case-I: By manual means ii) Bitumen (60/70 Grade) VG-30

Seal Coat Providing & laying seal coat sealing the voids in a bituminous surface laid to the specified levels, grade & cross fall using type A or B type C or D as per MoRD technical specification clauses 510. 1) By Manual Means. Case-iv : Type D ( Premix with fine sand ) ii) Bitumen of VG-30

Surface Drain: Construction of unlined surface drain of average cross sectional area 0.4 sqm in ordinary soil to specify lines , grades, levels and dimensions. Excavated materials to be used in embankment with a lead upto 3 m and lead upto 3m (average lead 25 m) as per MoRD technical specification 307. I) Surface Drains in Ordinary Soil A) Manual Means

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