ENHANCING PERFOMANCE OF BITUMINOUS PAVENT BY ADDING PLASTIC WASTE

The study on enhancing the performance of bituminous pavement by incorporating plastic waste demonstrates that this approach is both technically effective and environmentally beneficial. The addition of plastic waste to conventional bituminous mixes significantly improves key engineering properties such as strength, stability, durability, and resistance to moisture damage. Laboratory test results, including Marshall Stability, penetration, and softening point tests, indicate that plastic-modified mixes perform better than traditional mixes under varying load and temperature conditions. The plastic coating over aggregates reduces voids and water absorption, which are primary causes of pavement failures such as potholes, stripping, and cracking. As a result, roads constructed using plastic-modified bitumen exhibit longer service life and require less maintenance. Furthermore, the reduction in bitumen usage by approximately 8–10% contributes to cost savings, making this method economically viable. From an environmental perspective, the utilization of waste plastic in road construction provides an effective solution for managing non-biodegradable waste. It helps reduce landfill accumulation, prevents plastic burning, and supports sustainable development practices. This approach also promotes the concept of a circular economy by converting waste materials into valuable construction resources. However, certain challenges such as proper segregation of plastic waste, control of emissions during processing, and lack of widespread awareness need to be addressed for successful large-scale implementation. Future research and standardization will further enhance the reliability and acceptance of this technology. In conclusion, the use of plastic waste in bituminous pavements offers a sustainable, cost-effective, and high-performance solution for modern road construction. With appropriate policies, technological advancements, and awareness, this method has the potential to revolutionize infrastructure development while addressing critical environmental issues.

·        Vasudevan, R. (2012). Application of waste plastics in flexible pavements. Construction and Building Materials. ·        Kalantar, Z. N., Karim, M. R., & Mahrez, A. (2012). A review of using waste and virgin polymer in pavement. Construction and Building Materials, 33, 55–62. ·        Hinislioglu, S., & Agar, E. (2004). Use of waste HDPE in asphalt mixtures. Materials Letters, 58, 267–271. ·        Gawande, A., et al. (2012). Waste plastic in road construction. Journal of Engineering Research and Studies. ·        IRC: SP: 98-2013. Guidelines for use of plastic waste in bituminous mixes. ·        Ministry of Road Transport and Highways (2015). Plastic waste utilization guidelines.