Recycling – Use of Low Melting Point Plastic as an Asphalt Modifier Studied

According to the abstract of an October 1, 2023 Science of The Total Environment article by researchers with the Royal Melbourne Institute of Technology (RMIT) University in Australia “... This research encompasses an evaluation of the mechanical behaviour and environmental impact of introducing low melting point recycled plastics, low density polyethylene and commingled polyethylene/polypropylene, to conventional hot mix asphalt ... From an environmental perspective, high-temperature asphalt production with higher plastic content resulted in decreased gaseous emissions for both types of recycled plastics up to 21 %. Further comparison studies indicate that microplastic generation from recycled plastic-modified asphalt is comparable to that from commercial polymer-modified asphalt products, long employed by the industry. Overall, the use of low melting point recycled plastics as an asphalt modifier is promising since offering both engineering and environmental benefits when compared to conventional asphalt …” #PlasticWaste #SingleUsePlastic #MicroPlastics #Asphalt @RMIT