Project Dantak in Indonesia uses eco-friendly methods to improve high-altitude road durability and reduce maintenance costs, including REJUPAVE asphalt modification technology for Cheleta road. Project Dantak and CRRI collaborated to conduct a workshop on innovative road construction techniques for the country’s rugged terrain and harsh climate, addressing premature road failures. CSIR-CRRI’s REJUPAVE technology reduces asphalt mixing temperature by 30-40 degrees Celsius, reducing fuel consumption and construction costs by 15-20%. This is especially beneficial in Bhutan, where long hauling distances cause temperature losses. REJUPAVE ensures higher quality, longer-lasting road surfaces. The workshop introduced sustainable road technologies like Recycled Asphalt Pavement, steel slag roads, and terasurfacing, with Bhutan’s government piloting these in select locations before expanding across the country.
Bhutan could lessen the underutilization of industrial wastes and increase the sustainability and cost-effectiveness of road construction by using steel slag into the process. The primary steel manufacturer in Bhutan, Lhaki Steel Private Ltd., would be involved in the project’s total execution. The Chief Engineer for Project Dantak, Brigadier Rohit Gupta, emphasized that BRO is making substantial use of these innovative technologies in India’s high-altitude and low-temperature regions. Following the conclusion of the Chelela study, the technology will be applied throughout the nation, especially in colder areas where road networks have not performed well.