The Effect of Waste Plant Oil on the Composition and Micro-Morphological Properties of Old Asphalt Composition
The Effect of Waste Plant Oil on the Composition and Micro-Morphological Properties of Old Asphalt Composition
复制标题
废植物油对旧沥青组合物组成及微观形貌性能的影响
DOI：
10.3390/buildings11090407
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发表时间：
2021-09-01
期刊：
影响因子：
3.8
通讯作者：
Bao, Xu
中科院分区：
文献类型：
--
作者：
Suo, Zhi;Nie, Lei;Bao, Xu
目前，以矿物油为主要成分的再生剂被广泛使用。但其挥发性强、不可再生等缺点制约了再生技术的发展。本研究以废植物油为再生剂的主要成分制备再生老化沥青。探讨了废植物油含量和再生时间对老化沥青微观结构的影响。结果表明，废植物油的加入能有效补充沥青中饱和分和芳烃的含量，抑制饱和分和芳烃氧化生成沥青质和胶质。当再生时间为60 min，再生量为7.0%时，再生效果最好。再生老化沥青组分组成与微观形态特征的相关性依次为饱和分>沥青质>胶质>芳烃。
At present, the regeneration agent with mineral oil as the main component is widely used. However, its strong volatility, nonrenewability, and other shortcomings restrict the development of regeneration technology. In this study, waste vegetable oil was used as the main component of the regeneration agent to prepare regenerated aging asphalt. The change in microstructure of aging asphalt was explored with the change in waste vegetable oil content and regeneration time. The results showed that the addition of waste vegetable oil could effectively supplement the contents of saturates and aromatics, and inhibit the oxidation of saturates and aromatics into asphaltene and resin. When the regeneration time was 60 min and the regeneration content was 7.0%, the effect was best. The correlation between the component composition of regenerated aging asphalt and the micro-morphological characteristics was in the order of saturates, asphaltene, resin, and aromatics.