合成材料老化与应用2024，Vol.53Issue(4)：25-28,88,5.
超声处置对SBS改性沥青抗疲劳和耐老化能力影响的分析
Analysis of the Effect of Ultrasonic Treatment on the Fatigue and Aging Resistance of SBS Modified Asphalt
摘要
Abstract
In order to find ways to improve the fatigue resistance and aging resistance of SBS modified asphalt during long-term use,ultrasonic treatment was introduced into the field of SBS modified asphalt,and the changes of viscoelastic relationship,fatigue resistance and low temperature creep ability of SBS modified asphalt under different aging degrees before and after ultrasonic treatment were analyzed.The results show that ultrasonic treatment can reduce the viscoelastic ratio of SBS modified asphalt,enhance the sensitivity of SBS modified asphalt to strain,and slightly enhance the fatigue resistance of SBS modified asphalt in long-term service at a low dosage.The low temperature creep and stress relaxation ability decrease,and the modified asphalt becomes more brittle and hard.In the whole temperature range,the short-term aging resistance is slightly reduced,but the long-term aging resistance of the high and low temperature segments is slightly enhanced,and the effect is weakened with the increase of the dosage of SBS modifier.关键词
超声处置/SBS改性沥青/抗疲劳能力/耐老化能力Key words
ultrasonic disposal/SBS modified asphalt/fatigue resistance/aging resistance分类
交通工程引用本文复制引用
袁浩,王黎明,宋子坤,魏文,孙永卓..超声处置对SBS改性沥青抗疲劳和耐老化能力影响的分析[J].合成材料老化与应用,2024,53(4):25-28,88,5.基金项目
国家自然科学面上项目(52278449) （52278449）
黑龙江省交通运输科技项目(HJK2023B014-3). （HJK2023B014-3）
