Revolutionizing Road Construction in High-Altitude Border Regions

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The Border Roads Organisation (BRO) has achieved a significant milestone in enhancing road infrastructure along the India-China border in Arunachal Pradesh. Leveraging indigenous technology named ‘Rejupave,’ developed by the CSIR-Central Road Research Institute (CSIR-CRRI), the BRO has successfully constructed high-altitude bituminous road sections at the Sela tunnel and the LGG-Damteng-Yangste (LDY) road.

The ‘Rejupave’ technology has proven to be instrumental in overcoming the challenges posed by low and sub-zero temperatures prevalent in these mountainous terrains. By lowering the production and rolling temperature of bituminous mixes by 30 degrees Celsius to 400 degrees Celsius, this innovation allows for efficient road construction even amid snowfall and adverse weather conditions.

According to PKH Singh, Additional Director General (East) at BRO, the application of ‘Rejupave’ has extended the working window for road construction companies, facilitating the establishment of a robust road network at a faster pace in challenging environments. This is particularly crucial for the strategic border regions, where the central government has prioritized the development of a reliable infrastructure to bolster the operational capacity of defense forces.

Satish Pandey, the Principal Scientist of CSIR-CRRI and the inventor of ‘Rejupave,’ highlighted the technology’s asphalt modifier as a bio oil-based product. This modifier significantly reduces the heating requirements of bituminous mixes and preserves their temperature during transit. Pandey emphasized that this not only aids in constructing roads in sub-zero temperatures but also contributes to reducing greenhouse gas emissions in the eco-sensitive mountainous environment of Arunachal Pradesh.

The utilization of ‘Rejupave’ technology promises long-term benefits, with improved durability and better resistance to thermal cracking under low-temperature conditions. The road infrastructure built using this innovative approach is expected to withstand the challenges of cold climatic regions, providing a sustainable and resilient solution for the demanding terrain of Arunachal Pradesh.

For the BRO, tasked with the construction and maintenance of high-altitude bituminous roads in the Northeastern state, the ‘Rejupave’ breakthrough signifies a transformative leap in their capabilities. As the BRO continues to tackle the demanding task of building roads in remote and challenging landscapes, the success of ‘Rejupave’ technology stands as a testament to the power of indigenous research and innovation in addressing critical national infrastructure needs.

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