Investigating the anti-aging properties of asphalt modified with polyphosphoric acid and tire pyrolysis oil

IF 3.6 4区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Reviews on Advanced Materials Science Pub Date : 2024-05-07 DOI:10.1515/rams-2024-0017

Chuangmin Li, Lubiao Liu, Youwei Gan, Qinhao Deng, Shuaibing Yi

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Abstract

This research focuses on the aging resistance properties of asphalt, which are crucial for determining the lifespan of asphalt pavement. To combat aging, waste tire pyrolysis oil (TPO) is often added to asphalt, enhancing its resistance to aging but compromising high-temperature performance. This study offered a pioneering solution by integrating TPO with polyphosphoric acid (PPA) to address these issues. In this study, we conducted a series of tests to characterize the properties of PPA/TPO modified asphalt, including temperature sweep and bending beam rheometer tests. The results demonstrated that the presence of PPA in the PPA/TPO modified asphalt could improve its high-temperature performance while maintaining its low-temperature properties. Moreover, PPA in the PPA/TPO modified asphalt enhanced the modified asphalt’s resistance to fatigue and deformation during the aging process, while the presence of TPO effectively reduced the impact of thermo-oxidative aging on the modified asphalt during the aging process. Additionally, physicochemical interactions between the base asphalt and modifiers were observed before and after aging. In summary, this study had offered an innovative method to enhance the anti-aging properties of asphalt, and had provided more options for sustainable, environmentally friendly roads.

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研究聚磷酸和轮胎热解油改性沥青的抗老化性能

这项研究的重点是沥青的抗老化性能，这对决定沥青路面的使用寿命至关重要。为了解决老化问题，通常会在沥青中添加废轮胎热解油（TPO），从而增强沥青的抗老化性能，但会影响其高温性能。本研究开创性地将 TPO 与聚磷酸（PPA）结合在一起，从而解决了这些问题。在这项研究中，我们进行了一系列测试来表征 PPA/TPO 改性沥青的性能，包括温度扫描和弯曲梁流变仪测试。结果表明，PPA/TPO 改性沥青中 PPA 的存在可以改善其高温性能，同时保持其低温性能。此外，PPA/TPO 改性沥青中的 PPA 增强了改性沥青在老化过程中的抗疲劳和抗变形能力，而 TPO 的存在则有效降低了老化过程中热氧化老化对改性沥青的影响。此外，在老化前后还观察到了基质沥青和改性剂之间的物理化学相互作用。总之，这项研究提供了一种增强沥青抗老化性能的创新方法，为可持续发展的环保型道路提供了更多选择。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Reviews on Advanced Materials Science 工程技术-材料科学：综合

CiteScore

5.10

自引率

11.10%

发文量

审稿时长

3.5 months

期刊介绍： Reviews on Advanced Materials Science is a fully peer-reviewed, open access, electronic journal that publishes significant, original and relevant works in the area of theoretical and experimental studies of advanced materials. The journal provides the readers with free, instant, and permanent access to all content worldwide; and the authors with extensive promotion of published articles, long-time preservation, language-correction services, no space constraints and immediate publication. Reviews on Advanced Materials Science is listed inter alia by Clarivate Analytics (formerly Thomson Reuters) - Current Contents/Physical, Chemical, and Earth Sciences (CC/PC&ES), JCR and SCIE. Our standard policy requires each paper to be reviewed by at least two Referees and the peer-review process is single-blind.