tender for 74 / 24 chaidanya thampakathungal road re tarring ward 1; 1 road retarring 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 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 5 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. 6 75.5.9.1.2pb:20mm thick open-graded premix carpet using bituminous ( penetration grade / modified bitumen ) binder - bitumen s-65 - packed bitumen rates
providing, laying and rolling of open-graded premix carpet of 20 mm thickness composed of 13.2 mm to 5.6 mm aggregates either using penetration grade bitumen or emulsion 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 80-100 kn static roller capacity, finished to required level and grades to be followed by seal coat of either type a or type b or type c as per technical specification clause 508.
case - i by manual means
( ii ) bitumen ( s-65 ) 7 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
case iii : type c
( ii ) bitumen ( s-65 ) 8 od55758 / 2023-2024:construction of subgrade and earthern shoulders with approved materials obtained from borrow pits with all lifts and leads, transporting to site, spreading, grading to required slope and compacted to meet requirement 9 3.5.1:excavation in cutting in soil by manual means with lead upto 50 m
excavation for roadway in soil using manual means for carrying of cut earth to embankment site with a lift upto 1.5 m and lead upto 50 m as per technical specification clause 302.3 10 od65261 / 2023-2024:dr masonry with hard stone in foundation and superstructure including packing to compactness to lines and levels, cost and conveyance of all materials labour charges etc complete as per approved drawing and relevant technical specifications 11 od65260 / 2023-2024:stone masonry work in cm in foundation complete as per drawing and technical specification clauses iii. rr masonry ii. in 1:6 cm