紫外线光照辐射的SBS改性沥青老化研究现状

Review on SBS Modified Asphalt Aging under Ultraviolet Light Radiation

本文通过概括国内外相关的SBS改性沥青紫外线老化研究现状,阐述了SBS改性沥青紫外线老化机理,综述了紫外线老化方程,并对影响紫外线老化的因素进行了概括。针对目前我国现有的沥青性能评价体系中并未涉及紫外线老化的影响问题,梳理国内外沥青紫外线老化的研究成果及其相关的评价指标和测试方法,并提出展望。这为评估和预测SBS改性沥青紫外线老化性能提供基础,并为进一步深化研究其紫外线老化及抗老化措施研究提供参考。

Through reviewing previous research on UV aging of SBS modified asphalt at home and abroad, the aging mechanism was explicated from both macro and micro perspectives. The ultraviolet aging equation and factors influencing the aging were also introduced. In light of the fact that asphalt performance evaluation system in China does not involve ultraviolet aging, the research results of SBS asphalt UV aging, the related evaluation indicators and test methods were presented. Based on these, some research prospects are put forward to provide a theoretical basis for evaluating and predicting the aging performance of SBS modified asphalt, and to provide references for further research on UV aging and anti-aging measures.