Public Works Department-PWD has published Tender For Maintenance Of Gonda Twisa Class Xii School Approach Road, Gonda Twisa Old Town Hall Road To 60 Card Under Gonda Twisa Sub-Division/Sh- Wbm-Ii, Wbm-Iii, Carpeting And Seal Coat Etc.. Submission Date for this Tender is 06-01-2023. Road Work Tenders in gonda Tripura. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | SH : EARTHWORK, EROSION CONTROL AND DRAINAGE |
| 2 | Construction of Subgrade and Earthen Shoulders 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 Clause 303.1. |
| 3 | SH : GRANULR SUB-BASES, BASES(NON-BITUMINOUS) AND SHOULDERS |
| 4 | 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 KNin 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 |
| 5 | Water Bound Macadam Sub-Base / Base using Jhama Brick Aggragate 1) 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 KNin 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 |
| 6 | SH: BASES AND SURFACE COURSES(Bituminous) |
| 7 | Prime Coat ii) Low porosity Providing and applying primer 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 Clause 502. |
| 8 | Tack Coat (ii) 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 Clause 503. |
| 9 | 20 mm thick Open-Graded Premix Carpet using Bituminous (viscosity grade/ modified bitumen) Binder Providing, laying and rolling of open-graded premix carpet of 25 mm thickness composed of 13.2 mm to 5.6 mm aggregates either using viscocity 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 VG-30 |
| 10 | 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 VG-30 |
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