Work Name:2021-22-Chottanikkara GP-84/22 Kanichira Chanthaparambu road retarring and irrish drain construction in ward n0.12(Plastic Road)
Sl. No.
Item Description
1
Re Tarring(plastic road)
2
75.5.5.A.1pb : Modified Penetration Macadam 50 mm thick using Bitumen S-65 - Packed Bitumen Rates Construction 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.
3
75.5.5.B.2pb : Modified Penetration Macadam 75 mm thick using Bitumen S-65 - Packed Bitumen Rates Construction 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.
4
75.5.2.1pb : Tack Coat - With Packed Bitumen Rates Providing 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.
Providing, 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 508 Case - I By Manual Means
(II) Bitumen (S-65)
6
75.5.12.A.3.2pb : Seal Coat - Manual Means - Type C - Bitumen S-65 - Packed Bitumen Rates Providing 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 510 A. By Manual Means CaseIII :Type C (II) Bitumen (S-65)
7
Side concreting
8
od1365951/2021_2022 : Sectioning up to 150mm and forming the surface for OLD road way levelling,<br>cambering etc complete as per direction of Engineer in charge
9
od1424788/2021_2022 : Providing Plain cement concrete for ROAD WORK EXCLUSIVE OF FORMWORK CC<br>1:2:4 (1 cement: 2 fine aggregate: 4<br>course aggregate) laid to required slope and camber in panels (@ 3 m c/c) as required<br>including compaction USING NEEDLE VIBRATOR, finishing and tamping etc .complete. Max. size of course<br>aggregate not exceeding 25mm , mixed in concrete mixer etc complete as per<br>specification<br>(i) Nominal mix (1:2:4) Modified 75.8.1
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