Feb 8, 2020 · Plastic roads Definitions. It involves. a) llecting wastOkay, including plastic carry bags, cups, soft and hard foa, and laminated plastics; b) cleaning it by waHDPEng; c) shredding it to a uniform size; d) melting the wastOkay at 165 °C, and blending it with hot aggregates and bitumen and using this mixture to lay the road.