tender for annual plan-cheruthazham grama panchayath project number 253/2025-26 kizhakke karatt vayal road retaring-road retaring-general civil work-209610050000000139 - road retarring 2 2.14.2.a:dismantling of flexible pavements
dismantling of flexible pavements and disposal of dismantled materials upto a lead of 100 m, stacking serviceable and unserviceable materials separately as per technical specification clause 202
(ii) by mechanical means
(a) bituminous courses 3 3.14: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 with lead upto 1000 m as per technical specification clause 303.1. 4 4.1.a.3:granular sub-base with well graded material (table 400.1)
(a) by mix in place method
construction of granular sub-base by providing well graded material, spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator at omc, and compacting with smooth wheel roller to achieve the desired density, complete as per technical specification clause 401.
(iii) for grading iii material 5 4.9:wet mix macadam
providing, laying, spreading and compacting graded stone aggregate to wet mix macadam specification including premixing the material with water at omc in mechanical mixer (pug mill), carriage of mixed material by tipper to site, laying in uniform layers in sub-base/base course on a well prepared sub-base and compacting with smooth wheel roller of 80 to 100kn weight to achieve the desired density including lighting, barricading and maintenance of diversion, etc as per tables 400.11 & 400.12 and technical specification clause 406.
by mechanical means with 1 km lead 6 75.5.1.1pb:prime coat - low porosity - with packed bitumen rates
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 0.70-1.0 kg/sqm using mechanical means as per technical specification clause 502 7 75.5.2.3pb:tack coat - with packed bitumen rates
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 surfaces treated with primer & cleaned with hydraulic broom as per technical specification clause 503. 8 75.5.11.1.a.2pb:mix seal surfacing - manual means - type a - bitumen s-65 - packed bitumen rates
providing, laying and rolling of close-graded premix surfacing material of 20 mm thickness composed of 11.2 mm to 0.9 mm (type-a) or 13.2 mm to 0.9 mm (type-b) aggregates using penetration grade bitumen 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 8-10 kn static roller and finishing to required level and grades as per technical specification clause 509
by manual means
type a
(ii) bitumen (s-65)