Work Name:GENERAL-OR- BT patches to ETC PoomangalamMazhoor-Panniyoor-Kalikkadavu-Padappengad-Madakkad road-OR- BT patches toETC-Poomangalam-Mazhoor-Panniyoor-Padappengad-Madakkad-Km 0/000 to 13/575-General Civil Work-1-SLTF2021-22- BT patches to ETC-Poomangalam-Mazhoor-Panniyoor-Padappengad-Madakkad road
Sl. No.
Item Description
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BT patch works
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3.15:Scarifying the existing bituminous road surface to a depth of 50 mm and disposal of scarified material with in all lifts and lead upto 1000 metres by Mechanical Means
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4.2.A.1:Construction of granular sub-base by providing graded material, spreading in uniform layers with a motor grader on a prepared surface, mixing by mix in-place method with rotavator at OMC, and compacting with a vibratory roller to achieve the desired density, complete as per clause 401. Grading-III -For lower sub-base - Mix in Place Method
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55.4:Supplying and stacking 36mm size hard broken stone in standard heaps for measurement.
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55.2:Supplying and stacking 12mm hard blue granite broken stone in standard heaps for measurement(IRC 3.2.1.a)
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55.7.a:Providing bitumen leveling coarse between 40mm and 150mm with 36mm deptl metal by spreading the metal to line and levels and rolling until the compacted coarse aggregate has a firm surface and applying hot bitumen with pressure sprayer at the rate of 20 Kg per M3 metal including all cost of bitumen conveyance heating mixing spreading in appropriate locations to proper levels compacting with power roler and other sundry stores.
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55.8.a:Filling up pot holes (cut and formed to regular shapes and all loose and defective materials removed) after supplying a prime coat of hot bitumen using 36mm departmental broken stone and compacting with power roller to get a compact surface.
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55.9.a:Filling up pot holes (cut and formed to regular shapes and all loose and defective materials removed) after supplying a prime coat of hot bitumen using 12mm departmental broken stone and compacting with power roller to get a compact surface.
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5.2.a:Providing and applying tack coat with bitumen emulsion( RS) using emulsion pressure distributor at the rate of 0.20 - 0.30 kg per sqm on the prepared bituminous surface cleaned with mechanical broom.
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10.2:Maintenance of Earthen Shoulder (filling with fresh soil) Making up the loss of material/ irregularities on the shoulder to the design level by adding fresh approved soil and compacting it with appropriate equipment.
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3.24.A:Construction of unlined surface drains of average cross sectional area 0.40 sqm in soil by mechanical Means to specified lines, grades, levels and dimensions to the requirement of clause 301 and 309. Excavated material to be used in embankment within a lead of 50 metres (average lead 25 metres)
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OD61952/2021-2022:Mix seal surfacing providing ,laying and rolling of close gradedpremixed surfacing material of 20 mm thickness composed of 11.2mm to 0.90mm(type B)aggregates using bitumen VG-30 to requiredline ,grade and level to serve as wearing coarse on a previously prepared base ,includingmixing in a suitable plant,laying and rolling with a static roller 8-10 KnN and finishingto required leveland grades as per technical specification.By manual means type A (bitumen -VG-30)
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OD86282/2021-2022:Providing and laying Heavy seal coat sealing the voids in a bituminous surface laid to the specified levels, Using 6mm metal
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