Work Name:Annual Plan-2023-24-KTPDY/254 Maintenance of Punchakkara Chirangarappadi road-ward 2-General Civil Work
Sl. No.
Item Description
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Road Maintenance
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75.8.1:Providing Plain cement concrete for road work CC 1:2:4 (1 cement: 2 fine aggregate: 4course aggregate) laid to required slope and camber in panels (@ 3 m c/c) as requiredincluding compaction, finishing and tamping etc .complete. Max. size of courseaggregate not exceeding 25mm , mixed in concrete mixer etc complete as perspecification(i) Nominal mix (1:2:4)
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3.2:Preparation of Foundation for EmbankmentScarifying Existing Bituminous Surface to a Depth of 150 mm by Mechanical MeansScarifying the existing bituminous road surface to a depth of 150 mm and disposal of scarified material with a lift upto 3 m and lead upto 1000 m as per Technical Specification Clause 301.4.
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OD259355/2023-2024:Providing and Laying of Interlocking Concrete Block Pavements using 80 mm M40 hydraulicblocks of approved size, design & shape, laid in required pattern over and including acompacted bed of 6mm stone aggregate of 50mm average thickness, etc. all complete as per thedirection of Engineer in charge.
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75.8.1.1.A:Providing Plain cement concrete for wearing coat CC 1:2:4 (1 cement: 2 fine aggregate:4 course aggregate) laid to required slope as required including compaction, finishingand tamping etc .complete. Max. size of course aggregate not exceeding 25mm , mixedin concrete mixer etc complete as per specification(i) Nominal mix (1:2:4)
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75.5.5.A.1pb:Modified Penetration Macadam 50 mm thick using Bitumen S-65 - Packed Bitumen RatesConstruction of penetration macadam over prepared base by providing a layer of compacted crushed coarse aggregate using chips spreader with alternate applications of bituminous binder and key aggregates and rolling with a three wheel 80-100 kN static roller to achieve the desired degree of compaction as per Technical Specification Clause 506.
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75.5.2.1pb:Tack Coat - With Packed Bitumen RatesProviding and applying tack coat with Bitumen emulsion (RS-1) using emulsion distributor at the rate of 0.20 to 0.25 kg per sqm on the prepared bituminous surface cleaned with Hydraulic broom as per Technical Specification Clause 503.
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75.9.3.pb.pa:Plastic roads- Packed Bitumen Rate20mm thick Open-Graded Premix Carpetusing Bituminous (penetration grade/modified bitumen) Binder -Bitumen S-65 -Packed Bitumen and Shredded PlasticProviding, laying and rolling of opengradedpremix carpet of 20 mm thickness composed of 13.2 mm to 5.6 mm aggregateseither using penetration grade bitumen or emulsion to required line, grade and level toserve as wearing course on a previously prepared base, using HM Plant attached withopen pugmilll.Heating of aggregate at 150 degree Celsius to 170 degree Celsius, thentransferring the hot aggregate to pugmill and add shredded plastic @10.22 kg/100m2mixing well to form a uniform thin layer of plastic over - hot aggregate and adding hotbitumen (150 to 165 degree Celsius) @ 13.578 Kg/10m2 and mix well, laying and rollingwith a. three wheel 80-100 kN static roller capacity, finished to required level and gradesto be- followed by seal coat of either Type A or Type B or Type C as per TechnicalSpecification Clause 508Case - I By Manual Means(II) Bitumen (S-65),including supplying and stacking of materials.
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75.5.12.A.3.2pb:Seal Coat - Manual Means - Type C - Bitumen S-65 - Packed Bitumen RatesProviding and laying seal coat sealing the voids in a bituminous surface laid to the specified levels, grade and cross fall using Type A, Type B and Type C as per Technical Specification Clause 510A. By Manual MeansCase III : Type C(II) Bitumen (S-65)
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