A mini-review on the use of plastic waste as a modifier of the bituminous mix for flexible pavement

Abstract

With the rapid population growth, the annual plastic waste generation is increasing. There is a dire need for reusing plastic waste. If plastic waste is not recycled it ends up in landfills; ocean garbage patches or is incinerated; which causes different environmental problems, and if pollution from incineration plants is controlled then the plant becomes so expensive that not all countries can afford it. The addition of plastic waste to the flexible pavement has become an attractive option because this improves flexible pavement performance and eliminates the environmental problem. Huge work is done on waste addition in the bituminous mix but this review paper focuses on research done on utilizing plastic wastes as a modifier in a bituminous mix of flexible pavement.