tender for general-cmlrrp 2.0-2024-25, thavanur lac,sl.no:-1069,palapra- muthur road-palapra- muthur road- vattamkulam gp-general civil work - tarring 2 3.2:preparation of foundation for embankment
scarifying existing bituminous surface to a depth of 150 mm by mechanical means
scarifying 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. 3 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 4 5.1.1a:prime coat :- 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 0.70-1.0 kg/sqm using mechanical means as per technical specification clause 502 5 5.2.3a:tack coat
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. 6 5.11.1.a.2a:mix seal surfacing - manual means - type a - bitumen s-65
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) 7 side concreting 8 od202273/2025-2026: surface dressing of the ground including removing vegetation and in-equalities not exceeding 15 cm deep and disposal of rubbish, lead up to 50 m and lift up to 1.5 m. all kinds of soil (modified dar (2.22.1) 9 4.1.a.1: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.
(i) for grading i material 10 od202278/2025-2026:: providing plain cement concrete for road work cc 1:2:4 (1 cement: 2 fine aggregate: 4 course aggregate) laid to required slope and camber in panels (@ 3 m c/c) as required including compaction, finishing and tamping etc .complete. max. size of course aggregate not exceeding 25mm , mixed in concrete mixer etc complete as per specification (i) nominal mix (1:2:4) 11 od202633/2025-2026:providing and fixing of direction and place identification retro-reflectorised sign with 7 years warranty manufactured as per irc :67 made of type iv micro prismatic grade sheeting fixed over aluminium sheeting, 2 mm thick/ aluminium composite material sheeting 4 mm thick with area not exceeding 0.9 sqm, with suitable back supporting frame of ms angle 40x40x6 and supported on gi pipe pole 50mm nb-2 nos confirming to is 1239 firmly fixed to the ground by means of properly designed foundation with m 15 grade cement concrete min size 40 cm x 40 cm x 60 cm, 60 cm below ground level including painting all exposed surface with 2 coats of epoxy painting over epoxy primer and as per approved drawing and clause 801 including lettering symbols etc. (derived from mord spec 10.3.a.2)