Department of Highways, Department of Rural Roads, SCG, Dow Thailand Group, Chiang Mai University, Explore Ways to Use “Plastic Waste” for “Road” Construction in Line with Circular Economy

8 October 2020 249 views

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  • Department of Highways, Department of Rural Roads, SCG, Dow Thailand Group, and Chiang Mai University announced a partnership to explore and develop the use of plastic waste in asphalt concrete for road construction to deliver the road with improved performance and lifespan. The partnership aims to set a new standard for state roads while achieving the goal to promote effective waste management and resource efficiency, in line with the Circular Economy principle and follow the government policy of BCG (Bio-Circular-Green Economy).

This partnership’s focus is to provide resources and support on the academic and managerial aspects of the project. Based on their experience and know-how from the recycled plastic road project initiated in 2018, SCG and Dow Thailand Group plan to further their research and development through laboratory-based experiments and on-site testing on private lands such as RIL Industrial Estate in Rayong and Amata City Chonburi. Chiang Mai University will also join this research study and focus on the production process’s academic and environmental impacts. At the same time, the Department of Highways and the Department of Rural Roads will provide support and provide consultation on the standardization of plastic waste usage as an ingredient in asphalt concrete. The success of this project and the ability to implement it across the country would mean an enhancement to the nation’s sustainable plastic waste management following the circular economy principle and a significant improvement to the quality of life of the Thai people.

About 3 tons of plastic waste, equivalent to nearly 900,000 plastic bags, is estimated to be used every 1 kilometer with a width of 6 meters road. To date, through the partnership of SCG, Dow Thailand Group, and other companies from the private sector, 23 tons of plastic waste has been used to construct a 7.7 km prototype asphalt concrete road.

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