Construction of black topping road at Rongbinong village (Phase - I) under Pradhan Mantri Khanij Kshetra Kalyan Yojana (PMKKKY) of District Mineral Foundation Trust, Dima Hasao for the year 2025-26

Construction of Subgrade & Earthen shoulders Construction of Subgrade and earthen shoulders with approved material of obtained from borrow pits with all lifts and leads, transportating to site, spreading, grading to required slope and compacted to meet requirement of Table 300.2 with lead upto 1000 m as per Technical Specification Clause 303.1. (i). Govt. land

Surface drain in soil Construction of unlined surface drain of average cross - section area 0.40 sqm. in soil to specified lines, grades, levels and dimensions. Excavated material to be used in embankment with a lift up to 3m and lead of 50m (average lead 25m) as per technical specification clause 307. A. Manual means.

Gravel/Soil - Aggregate Base (Table 400.2) Grading B Construction of Granular Sub - Base (GSB) by providing well graded material, spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotabator at OMC, and copacting with three wheel 80 - 100 KN static roller capacity to achieve the desired density, complete as per technical specification clause - 402.

3). WBM Grading - 3 Using stone screening Type - B 11.2 mm for Gr - III Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with three wheel 80 - 100 KN stetic roller in stages to proper grade and camber, applying and brooming, crushable screening to fill up the interstices of coarse aggregate, watering and compacting to the required density. Grading 3 as per specification clause 405. (A). By Manual Means

A. (i). Inter locking concrete Block pavement Providing and laying interlocking concrete block pavement with M40 grade grade of concrete blocks having thickness 80mm as per technical specification clause 1504 complete including carriage.

Brick Soiling. Laying brick soling layer on prepared sub-grade with brick on end edging according to lines, graded and cross-section shown on the drawing filling joints with sand and earth, spreading 25 mm thick layer of earth over brick soling, watering and rolliing the same with three wheel road roller 80-100 kN as per Technical Specification Clause 412.

Cement concrete pavement Construction of un reinforced, dowel jointed at expansion and construction joint only,plain cement concrete pavement, thickness as per design,over a prepared sub base,with 43 grade cement or any other type as per clause 1501.2.2 M30 grade ,coarse and fine aggregrette conforming to is:383,maximum size of coarse aggregate not exceeding 25 mm,mixed in a concrete mixer of not less than 0.2 cum capacity and appropriate weigh batcher using approved mix design, laid in approved fixed side formwork (steel channel,laying and fixing of 125 micron thick polythene film,wedges,steel plates including levelling the formwork as per drawing) spreading the concrete with shovels, rakes, compacted using needle, screed and plate vibrator and finished in continuous operation including cum 6,719.10 , p p g provision of contraction and expansion,construction joints, applying debonding strips, primer, sealant, dowelbars near approaches to bridge/culverts and construction joints,admixture as approved, curingof concrete slabs for 14 days.

Constriction of RCC Open Drain complete as per drawing and technical specification.

Constriction of RCC Cover Drain complete as per drawing and technical specification.