沥青中掺入不同废料的效果

Sara Fernandes , Liliana Costa , Hugo Silva , Joel Oliveira
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引用次数: 33

摘要

随着废料对环境的日益关注和提高沥青混合料性能的必要性,人们开始研究在常规沥青中掺入不同的废料。废弃材料的再利用可以在环境和经济层面上带来好处,并且一些废物可以用来改善路面性能。因此,本研究的目的是评估沥青中不同废物的掺入情况,即废机油和不同的聚合物。为了实现这一目标,将10%的废机油和5%的聚合物(高密度聚乙烯、橡胶屑和苯乙烯-丁二烯-苯乙烯)添加到常规沥青中,并通过基础和流变试验对所得改性沥青进行了表征。从这项工作中可以得出结论,不同废料的掺入改善了常规沥青的一些重要性能。这种改进可能表明在中高温下具有良好的性能,并且疲劳和车辙阻力增加。因此,这些废料改性沥青以其优异的性能和环保优势,有利于道路铺装行业的可持续发展。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effect of incorporating different waste materials in bitumen

The increasing environmental concern about waste materials and the necessity of improving the performance of asphalt mixtures prompted the study of incorporating different waste materials in conventional bitumen. The reuse of waste materials can present benefits at an environmental and economic level, and some wastes can be used to improve the pavement performance. Thus, the purpose of this study is to evaluate the incorporation of different waste materials in bitumen, namely waste motor oil and different polymers. In order to accomplish this goal, 10% of waste motor oil and 5% of polymers (high density polyethylene, crumb rubber and styrene-butadiene-styrene) were added to a conventional bitumen and the resulting modified bitumens were characterized through basic and rheological tests. From this work, it can be concluded that the incorporation of different waste materials improves some important properties of the conventional bitumen. Such improvements might indicate a good behaviour at medium/high temperatures and an increase of fatigue and rutting resistance. Therefore, these modified bitumens with waste materials can contribute to a sustainable development of road paving industry due to their performance and environmental advantages.

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