Rejupave Technology in Road Construction

16 Jan 2024

Context: 

Recently, the Border Roads Organisation (BRO) has utilized the ‘Rejupave technology to build bituminous road sections at the world’s highest Sela road tunnel and LGG-Damteng-Yangste (LDY Road) road section near the China border in Arunachal Pradesh.

About Rejupave Technology

  • Developed by: CSIR-Central Road Research Institute (CSIR-CRRI).
  • Use of a bio-oil-based product: Rejupave asphalt modifier is a bio-oil-based product that lowers the heating requirement of bituminous mixes besides preserving the bituminous mix’s temperature during transit.
    • Rejupave TechnologyBituminous Road: It is also known as the asphalt road, is a type of road construction that involves the use of bitumen as a binding agent to hold together a mixture of aggregates. 
  • Significance of Rejupave Technology: 

    • High-Altitude Bituminous Roads: It is beneficial in constructing high-altitude bituminous roads at low and subzero temperature conditions.
    • Temperature Reduction in Bituminous Mixes: It brings down the temperature of bituminous mixes by 30 to 40 degrees Celsius with negligible heat loss in the bituminous mix during transit.
Sela Road Tunnel: It aims to provide “all-weather” connectivity to Tawang, a remote and strategically significant district in the region. It will be the world’s longest bi-lane tunnel at an altitude above 13,000 feet.

About CSIR-Central Road Research Institute (CRRI):

  • Establishment: It is a premier national laboratory established in 1952.
  • Mandate: It is the premier national research organization for highway traffic, transport planning, and other allied aspects.

News Source: Times of India

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