Plastic Waste in Geosynthetic-Reinforced Flexible Pavements for Sustainable Construction: A Review

This review provides an overview of the incorporation of plastic waste in geosynthetic-reinforced flexible pavements for sustainable construction. Plastic waste has become a global environmental concern, and finding effective ways to recycle and reuse plastic materials is crucial for reducing environmental impact. Geosynthetic materials, such as geotextiles and geogrids, have been widely used in pavement construction to enhance performance and longevity. The review examines the potential benefits and challenges of incorporating plastic waste, such as recycled plastic fibers or shredded plastic particles, into geosynthetic-reinforced flexible pavements. It discusses the mechanical, thermal, and environmental properties of plastic waste and their influence on the performance of pavements. Additionally, the effects of plastic waste incorporation on pavement properties, including rutting resistance, fatigue behavior, and moisture susceptibility, are evaluated. Furthermore, the review addresses the sustainability aspects of using plastic waste in pavements, including the reduction of plastic waste in landfills, conservation of natural resources, and energy savings. It also discusses potential limitations and concerns, such as the long-term durability of plastic materials and the potential for leaching of harmful substances.