TOPIC
Waste Plastics on Asphalt Roads: From Waste Source Identification to Recycled Asphalt Pavement Specifications
With the rapid rise in the number of plastic products, recycling plastic waste has become a crucial challenge worldwide. Diverting plastic wastes to roads is one option to relieve pressure on landfill space. This lecture aims to discuss how to ensure that waste plastics can be effectively used in asphalt roads and creating a circular economy. This include understanding the source of plastic wastes in consumer households and the industry, assessing whether recycling plastic in asphalt pavement using either the dry and/or wet process is a sustainable strategy. Engineering, environmental, and economic performances of various waste-plastic modified asphalt pavements are presented. Life cycle cost analysis (LCCA) performance of waste plastic-modified asphalt pavements and their impact on aquatic environmental pollution and pollutant emissions are discussed. Finally, the potential of recyclability (i.e. recycled asphalt pavements) for a full circular economy is presented. The implementation of waste plastics in asphalt roads in Singapore is presented and future research directions are proposed.
TIME
Oct 22, 2024, 9:30
LOCATION
Room 322, School of Transportation
ABOUT THE LECTURER
Dr Ong Ghim Ping Raymond is currently an Associate Professor and Deputy Head (Research and Enterprise) at the Department of Civil and Environmental Engineering, National University of Singapore. He is also the Director (Operations) at the Coastal Protection and Flood Resilience Institute Singapore. He received his PhD degree in Civil Engineering from the National University of Singapore
Dr Ong’s research interest is in sustainable pavement materials and engineering, and multimodal transport infrastructures and operations. He has published more than 90 journal articles. He is currently the Executive Vice President of the International Society of Maintenance and Rehabilitation of Transport Infrastructures (iSMARTi) and the Chair of the ASCE Economics and Finance Committee. He is also the Council Member of the Singapore Road Safety Council and a member of the Land Transport Authority of Singapore’s Panel of Expert Advisors. He has won numerous awards, including the ASCE Alfred Noble Prize, the International Association of Maritime Economist (IAME) Hanjin Prize, and the iSMARTi Achievement Award.