Road development work within Fultali GP ward No_2 at Rayermura BSF camp via Prafullya Sarkar house(L_0point90km) under Amtali PWD (RnB) Sub_Division during the year 2025_26

A. Without dewatering. Earth work in excavation for structure as per drawing and MoRD technical specification clause 305.1 in/c setting out construction of shoring & bracing removal setting out construction of shoring & bracing removal of stumps & other deleterious materials and disposal upto a lead of 50m dressing of sides & bottom and backfilling in trenches with excavated suitable materials.I) Ordinary soil. upto 3.0m depth.

Filling in foundation trenches as per drawing & MoRD technical specification clause 305.3.9, 1200. I) Sand filling.

Providing concrete for plain concrete(using jhama brick agg) in open foundation complete in/c form work as per drawing & MoRd technical speciification clause 802,803, 900,1202 and 1203 (in/c centering shutering staging etc but ex/c reinforcement .I0 PCC Grade M-10 (using jhama agg) (i)Nominal mix 1:3:6 .

Brick masonaryin cement mortar in foundation completed ex/c pointing plastering as per drawing & MoRD technical spcification clause 600, 1202 & 1203. (II) Brick masonary in 1:4 cement mortar.

Plain / reinforced cement concrete in substructures complete including formwork as per drawings & MoRD technical specifications Clauses 802, 804, 805, 806, 807, 900, 1202 & 1204. (including centering, shuttering, staging etc. but excluding reinforcement). (VI) RCC Grade M - 25 i) Upto Height 5.00 Mtr

Supplying, fitting & placing Thermo-Mechanically treated bar / Cold twisted deformed steel bar in substructure complete as per drawings & MoRD technical specification Clauses 1002, 1005, 1010 and 1202.

Plastering with cement mortar (1:4) 12 mm thick on brickwork / C.C. work including a finishing coat of neat cement punning with 2.75 kg of cement per sqm in substructure as per MoRD technical specification Clauses 613.4 & 1204.

Construction of subgrade and earthen shoulders with approved material obtained from borrow pits with all lifts and leads, transporting to site , spreading, grading to required slope and compacted to meet requirement of Table 300.2 as per MoRD Technical Specification Clause303.1.

Flat Brick soling Providing and laying flat brick soling layer on prepared subgrade according to lines, grades and cross-section shown on the drawing, filling joints with Earth, free from clay with a Plasticity Index not exceeding 6, watering and rolling the same with three wheeled road roller 80-100 kN as per MoRD Technical Specification Clause 412.

Brick edging laid length wise Providing and laying brick edging laid lengthwise on prepared subgrade according to lines, grades and crosssection shown on the drawing, filling joints with Earth, free from clay with a Plasticity Index not exceeding 6, watering and rolling the same with three wheeled road roller 80-100 kN as per MoRD Technical Specification Clause 412.

Surface Drains Construction of unlined surface drains of average cross-sectional area 0.40 sqm in ordinary soil to specified lines, grades, levels and dimensions. Excavated material to be used in embankment with a lift upto 3 m and lead of 50 m (average lead 25 m) as per MoRD Technical Specification Clause 307. (I) Surface Drains in Ordinary Soil (A) Manual Means

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 By Manual Means

Providing and laying tack coat using hot straight run bitumen of grade VG- 30, including heating the bitumen, spraying the bitumen, cleaning and spreading the existing road surface as per specifications: On bitumen surface @ 0.50 kg/ Sqm.

Providing and laying tack coat using hot straight run bitumen of grade VG- 30, including heating the bitumen, spraying the bitumen, cleaning and spreading the existing road surface as per specifications: On W.B.M @ 0.75 kg/ Sqm.

20 mm thick Open - Graded Premix Carpet using Bituminous (Viscosity grade / modified bitumen) Binder Providing , laying and rolling of open-graded premix carpet of 20 mm thickness composed of 13.2 mm to 5.6 mm aggregates either using viscosity grade bitumen or emulsion to required line, grade and level to serve as wearing course on a previously prepared base , including mixing in a suitable plant, laying and rolling with a three wheel 80 - 100 kN static roller capacity, finished to required level and grades to be followed by seal coat of either Type A or Type B or Type C or Type D as per MoRD Technical Specification Clause 508. Case - I : By Manual Means i) Bitumen of VG-30

Seal Coat Providing and laying seal coat sealing the voids in a bituminous surface laid to the specified levels, grade and cross fall using Type A or Type B or Type C or Type D as per MoRD Technical Specification Clause 510 A) By Manual means Case - IV : Type D (premix with fine sand) (I) Bitumen of VG 30

Maintenance of bituminous surface road. Repair to pot holes by removal of failed material, trimming the sides to vertical and levelling the bottom, cleaning the same with compressed air or any appropriate method, filled with 75 mm B.M, after applying bitumen emulsion prime coat at the bottom and bitumen emulsion tack coat on sides and on bottom as per MoRD technical specification Clauses 1900, 502, 503 and 504.

Seal Coat on Old bituminous road surface Sand Seal coat on old bituminous road surface by applying Viscosity Graded (VG-30) bitumen @ 1.00 Kg per sqm using rubber brush after proper cleaning of the road surface and spreading of river sand @ 0.06 cum / 10 sqm complete as per specification and direction of the Engg-in-Charge.

Maintenance of Earthen shoulder (stripping of excess soil) Stripping excess soil from the shoulder surface to achieve the approved level and compacting with plate compactor at OMC as per drawing and MORD technical specification clause 1903.(Ch 0.20km to Ch 0.65km).

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