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Analysis of replacing virgin bitumen by plastic waste in asphalt concrete mixtures
International Journal of Pavement Engineering ( IF 3.8 ) Pub Date : 2021-02-10 , DOI: 10.1080/10298436.2021.1884863
Pedro Lastra-González 1 , Esther Lizasoain-Arteaga 1 , Daniel Castro-Fresno 1 , Gerardo Flintsch 2
Affiliation  

ABSTRACT

Polymers are used worldwide for their unique properties such as a light weight or chemical resistance, but which have led to an environmental challenge because of the time they need to completely decompose when buried in landfills. Complementarily, bitumen generates the second biggest environmental impact in the construction of a road. This paper analyses the mechanical, environmental and economic performance of replacing 25% of bitumen with two low-cost plastic wastes (cable plastic and the film fraction from household packaging waste) in an asphalt mixture. The results demonstrated the feasibility of the technology from the 3 viewpoints analysed. The plastic-modified mixtures achieve reductions of more than 17% and 11% in the economic and environmental impact when the analysis is focused on the wearing course.



中文翻译:

沥青混凝土混合料中废塑料替代原始沥青的分析。

摘要

聚合物因其独特的性能(例如重量轻或耐化学性)而在世界范围内使用,但是由于埋入垃圾填埋场需要时间完全分解,因此导致了环境挑战。作为补充,沥青在公路建设中产生的第二大环境影响。本文分析了在沥青混合料中用两种低成本塑料废料(电缆塑料和家庭包装废料中的薄膜部分)代替25%的沥青的机械,环境和经济性能。结果从3个角度分析了该技术的可行性。当将分析重点放在磨损过程上时,塑料改性混合物可在经济和环境影响方面减少超过17%和11%。

更新日期:2021-02-11
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