科技创新与应用2025，Vol.15Issue(7)：63-66,4.DOI:10.19981/j.CN23-1581/G3.2025.07.016
SBS改性沥青微波加热老化试验研究
胡敏 1张刚 1衣松杰 1王刚1
作者信息
- 1. 中交路桥建设有限公司,北京 101100
- 折叠
摘要
Abstract
The purpose of this study was to investigate the aging behavior of SBS modified asphalt under microwave heating,and systematically analyze the changes in softening point,penetration,ductility,multiple stress creep recovery(MSCR)properties and adhesion of asphalt after microwave heating aging.The results showed that microwave heating significantly accelerated the aging process of SBS modified asphalt,resulting in an increase in softening point,a decrease in penetration and ductility,reflecting the trend of material hardening.The MSCR test results show that the creep recovery ability of the aged asphalt is weakened,the strain recovery rate is reduced,the irrecoverable creep compliance is increased;and the adhesion to aggregate is reduced.Under the action of microwave heating,the performance degradation of SBS modified asphalt is mainly related to the destruction of polymer structure and the increase of crosslinking density.关键词
沥青老化/微波加热/多重应力蠕变试验/流变性能/黏附性Key words
asphalt aging/microwave heating/multiple stress creep test/rheological properties/adhesion分类
交通工程引用本文复制引用
胡敏,张刚,衣松杰,王刚..SBS改性沥青微波加热老化试验研究[J].科技创新与应用,2025,15(7):63-66,4.
