A Study on the Environmental Performance of an Asphalt Mixture Modified with Directly Added Waste Plastic.

IF 3.2 3区材料科学 Q3 CHEMISTRY, PHYSICAL Materials Pub Date : 2025-03-06 DOI:10.3390/ma18051168

Liting Yu, Haoyi Kang, Rui Li, Jianzhong Pei, Yizhi Du

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Abstract

The environmental pollution caused by waste plastics has raised widespread concern within the global academic community. The use of waste plastic in road construction is seen as a future trend for road materials, offering benefits such as energy conservation, pollution reduction, and the enhanced high-temperature performance of asphalt mixtures. However, conventional testing methods have limited the scope of performance measurements for modified asphalt mixtures, and fewer studies have explored the pavement performance of such mixtures. This study evaluated the environmental performance of asphalt mixtures modified with waste plastics. A series of experiments, including rutting tests, low-temperature bending tests, water stability tests, and aging tests, demonstrated that the use of waste plastic-modified asphalt significantly improved high-temperature performance. Notably, with transition dispersants, the rutting resistance improved by 24.5%, and the low-temperature bending strength increased by 15.8%, demonstrating excellent anti-aging properties. Statistical analysis indicated that waste plastic-modified asphalt has superior high-temperature stability and good low-temperature crack resistance.

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直接添加废塑料改性沥青混合料的环保性能研究。

废塑料对环境的污染已经引起了全球学术界的广泛关注。在道路建设中使用废塑料被视为道路材料的未来趋势，提供诸如节能，减少污染和增强沥青混合物的高温性能等好处。然而，传统的测试方法限制了改性沥青混合料性能测量的范围，并且很少有研究探索这种混合料的路面性能。本研究对废旧塑料改性沥青混合料的环境性能进行了评价。车辙试验、低温弯曲试验、水稳定性试验、老化试验等一系列试验表明，废塑料改性沥青的高温性能得到显著改善。添加过渡分散剂后，抗车辙性能提高24.5%，低温抗弯强度提高15.8%，表现出优异的抗老化性能。统计分析表明，废塑料改性沥青具有优越的高温稳定性和良好的低温抗裂性。

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来源期刊

Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

5.80

自引率

14.70%

发文量

7753

审稿时长

1.2 months

期刊介绍： Materials (ISSN 1996-1944) is an open access journal of related scientific research and technology development. It publishes reviews, regular research papers (articles) and short communications. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. Materials provides a forum for publishing papers which advance the in-depth understanding of the relationship between the structure, the properties or the functions of all kinds of materials. Chemical syntheses, chemical structures and mechanical, chemical, electronic, magnetic and optical properties and various applications will be considered.