We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Experimental Study on Waste Plastic Modified Bituminous Mix for Flexible Pavements
Summary
Researchers found that mixing shredded waste plastic (like grocery bags and packaging film) into road paving material makes roads stronger and more durable while also giving discarded plastic a useful second life instead of it ending up in landfills or waterways. This matters because it tackles two problems at once—plastic pollution and road quality—though it's worth noting the study didn't examine whether the plastic in these roads breaks down into microplastics over time or affects nearby air, soil, or water as roads wear down from traffic and weather.
The rapid increase in plastic consumption worldwide has resulted in serious environmental challenges due to its non-biodegradable nature and difficulties in disposal. Improper management of plastic waste leads to land pollution, blockage of drainage systems, and harmful ecological effects. At the same time, modern transportation demands require flexible pavements with enhanced strength, durability, and resistance to increasing traffic loads and environmental variations. In this context, the present study titled “Experimental Study on Waste Plastic Modified Bituminous Mix for Flexible Pavements” focuses on utilizing waste plastic as a sustainable modifier in bituminous mixes. Waste plastic materials such as polyethylene carry bags, packaging films, and disposable plastic items were collected, cleaned, shredded, and incorporated into conventional bitumen using the dry process. A series of laboratory tests, including aggregate impact value test, specific gravity test, penetration test, ductility test, softening point test, and Marshall stability test, were conducted to evaluate the engineering properties of the modified mix. The results indicate that the inclusion of waste plastic significantly enhances the performance of bituminous mixes. Marshall stability values increased with plastic content up to an optimum level, while flow values remained within permissible limits. Furthermore, the plasticmodified mix exhibited improved resistance to rutting, enhanced durability, reduced moisture susceptibility, and better binding characteristics compared to conventional mixes. The study concludes that waste plastic modified bituminous mix is an economical, eco-friendly, and technically efficient solution for flexible pavement construction, contributing to sustainable waste management and improved pavement performance. Keywords: Waste Plastic, Bituminous Mix, Flexible Pavement, Marshall Stability, Plastic Modified Asphalt, Dry Process, Sustainable Construction, Pavement Performance, Rutting Resistance, Waste Management