ASOM_MALA_3.0_25_26_14 Balance Work for Improvement and Upgradation of Old AT Road (Old NH-37) starting at Ch. 636.80 Km (Laipuli) and ending at Ch. 653.50 Km (Makum ROB) under Asom Mala 3.0 for the year of 2025-26

Dismantling of Structures (Dismantling of existing structures like culverts, bridges, retaining walls and other structure comprising of masonry, cement concrete, wood work, steel work, including T&P and scaffolding wherever necessary, sorting the dismantled material, disposal of unserviceable material and stacking the serviceable material with all lifts and lead of 1000 metres) Plain Cement concrete structures

Dismantling of Structures (Dismantling of existing structures like culverts, bridges, retaining walls and other structure comprising of masonry, cement concrete, wood work, steel work, including T&P and scaffolding wherever necessary, sorting the dismantled material, disposal of unserviceable material and stacking the serviceable material with all lifts and lead of 1000 metres) RCC structures including reinforcement

Scarifying existing bituminous surface to a depth of 150 mm by mechanical means (Scarifying the existing bituminous road surface to a depth of 50 mm and disposal of scarified material with in all lifts and lead upto 1000 metres.)

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 (Manual method should be adopted where machines can not be deployed due to site condition)

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 comp g acting 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 & leads, transporting to site, spreading, grading to required slope and compacted to meet requirement of table (300-2) (a), (Including cost of testing of materials at site and laboratory as directed by the deptt.)

Construction of Granular Sub-base by providing coarse graded material, spreading in uniform layers on prepared surface and compacting at OMC with vibratory roller to achieve the desired density, complete in all respect and as per relevant clauses of Section-400. GSB - For grading-II Material

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. (including carriage of mixed materials up to 10.0 Km initial lead from mixing plant )

Providing and applying Tack coat with bitumen emulsion using emulsion pressure distributor at the rate of 0.25 to 0.30 kg per sqm the prepared bituminous surface cleaned with Hydraulic broom as per Technical Specification Clause 503.

Surface Dressing using Bituminous (Penetrations grade / modified bitumen) Binder Providing and laying surface dressing as wearing course consisting of a layer of bituminous binder laid on the prepared surface, followed by a cover of crushed stone aggregates of specified size and rolling with three wheel 80-100 kN static roller including cleaning the road surface as per Technical Specification Clause 507. Bitumen (S-65)