Maintenance of different roads under the Khumulwng Sub-Division PWD(R and B) during the year 2026-27 SH Patch Grouting, Patch WBM-II, Patch WBM-III, Patch Carpeting, Seal Coat, Tack Coat, and Other allied work etc. (Gr-III)

Patch repairing/Maintenanceof bituminous surface roadusing Jhama brick aggregate & Viscosity Graded bitumen (VG-30) Repairing pot-holes and making up small depressions with rammingorpowerrollingafterremoval/disposalofdisintegrated materialswithin a lead of 50m, cutting pot holes to regular shapeswithverticaledgesandlevellingthebottom, cleaningthe same with compressed air or any other appropriatemethod including screening, cleaningof aggregates; and fillingupwith with jhama chips usingbitumenof VG-30@54 kgperm3 of loose volumeof jhamabrick chips, after applying tack coat of [email protected]/ sqmandfinishingthe top of repaired surface levelledwith adjoining area in proper gradeandcamber [email protected]/sqm of prepared road surface as per direction of the Engineer-in ChargeandallasperMoRDtechnical specificationClauses1900, 502, 503 and 504.

Water Bound Macadam Sub-Base / Base using Jhama Brick Aggragate (1) WBM Grading 2 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- 2 as per MoRD Technical Specification Clause 405. (A) By Manual Means

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

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.

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

Tack coat using hot straight run bitumen of grade VG-30 on bituminous surface Providing and applying tack coat using hot straight run bitumen of grade VG-30, including heating the bitumen, spraying the bitumen, cleaning and preparing the existing road surface as per specifications: On bituminous surface @ 0.50 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

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 50m (average lead25m) as per MoRD Technical Specification Clause 307 (i) Surface Drains in Ordinary Soil (A) Manual Means