| 光热耦合作用对SBS改性沥青及其混合料的性能影响研究 |
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| 引用本文： | 孙宏,廖永擘,张恺,朱耀庭.光热耦合作用对SBS改性沥青及其混合料的性能影响研究[J].路基工程,2018,0(2):24-28. |
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| 作者姓名： | 孙宏 廖永擘 张恺 朱耀庭 |
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| 作者单位： | 1.江西交通咨询公司, 南昌 330000 |
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| 基金项目： | 江西省交通运输厅科技项目（2015C0007）；国家自然科学基金（51508246） |
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| 摘 要： | 对3种沥青（基质沥青、橡胶粉改性沥青以及SBS改性沥青）及其混合料在不同光热耦合条件下的性能进行试验研究，评价SBS改性沥青混合料的抗光热老化性能。结果表明:SBS改性沥青的抗光热耦合老化的性能优于橡胶沥青以及基质沥青；3种沥青混合料的性能随着耦合老化时间的增长而降低，尤其是在5天老化后，沥青混合料的性能出现急剧下降；综合沥青混合料路用性能试验结果发现，SBS改性沥青混合料的抗老化性能明显优于橡胶沥青以及基质沥青。
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| 关 键 词： | 沥青混合料 光热耦合 抗老化 路用性能 |
| 收稿时间： | 2019-11-06 |
Study on the Influence of Photo-thermal Coupling on the Performance of SBS Modified Asphalt and Its Mixture |
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| Abstract: | In this paper, the performance of three kinds of asphalt (matrix asphalt, rubber powder modified asphalt and SBS modified asphalt) and its mixture under different photo-thermal coupling conditions is studied and the photo-thermal aging resistant performance of SBS modified asphalt mixtures is evaluated. The results show that the photo-thermal aging resistant performance of SBS modified asphalt is better than that of the rubber asphalt and matrix asphalt. The performance of the three kinds of asphalt mixtures is decreased with the increase of coupling and aging time, especially after 5d aging, the performance of asphalt mixtures is decreased sharply. Combining with the test results of pavement performance of asphalt mixtures, it is found that the anti-aging performance of SBS modified asphalt mixture is superior to that of the rubber asphalt and matrix asphalt significantly. |
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