New Construction work of Chaurangahar Sarvajanik Inter College to the Bah-Kainjra route

Group-A Excavation in Soil using Hydraulic Excavator and Tippers with disposal upto 1000 m. / Excavation for roadwork in soil with hydraulic excavator of cum bucket capacity including cutting and loading in tippers, trimming bottom and side slopes, in accordance with requirements of lines, grades and cross-sections, and transporting to the embankment location with a lift upto 1.5 m and lead upto 1000 m as per Technical Specification Clause 302.3.

Construction of Embankment with Material Obtained from Roadway Cutting / Construction of embankment with approved materials deposited at site from roadway cutting and excavation from drain and foundation of other structures graded and compacted to meet requirement of Tables 300.1 and 300.2 as per Technical Specification Clause 301.5.

Providing, laying and spreading Material on prepared sub grade, adding cement 43 grade OPC @2% by weight to the spread Material manually, mixing in place with rotavator and compacting with the road roller at OMC to achieve the desired unconfined compressive strength and to form a layer of sub-base. Granular Sub-Base with Coarse Graded Material (Cement Treated Subbase)

Providing, laying and spreading Material on prepared sub grade, adding cement @4% by weight to the spread Material manually, mixing in place with rotavator and compacting with the road roller at OMC to achieve the desired unconfined compressive strength and to form a layer of sub-base/base Cement treeted Base

Providing and applying tack coat with Bitumen VG-10 using bitumen distributor at the rate of 0.30-0.40 kg per sqm on the prepared bituminous surface cleaned with Hydraulic broom as per Technical Specification Clause 503.

20mm thick Open-Graded Premix Carpet using Bituminous (penetration grade/modified bitumen) Binder - Providing, laying and rolling of open-graded premix carpet of 20 mm thickness composed of 13.2 mm to 5.6 mm aggregates ( two third 13.2 mm and one third 11.2mm grit) 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 - II By Mechanical Means / (I) Bitumen (S-90)

Providing and laying seal coat sealing the voids in a bituminous surface laid to the specified levels, grade and cross fall using Type C as per Technical Specification Clause 510 A.

Group-B Construction of Embankment with Material Obtained from Borrow Pits / Construction of embankment with approved material obtained from borrow pits with a lift upto 1.5 m, transporting to site, spreading, grading to required slope and compacting to meet requirement of Tables 300.1 and 300.2 with a lead upto 1000 m as per Technical Specification Clause 301.5

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.

Granular Sub-Base with Coarse Graded Material (Table:- 400.1) Construction of granular sub-base by providing coarse graded material, spreading in uniform layers on prepared surface, mixing by mix in place method with rotavator at OMC, and compacting with vibratory roller to achieve the desired density, complete as per clause 401.