铁道科学与工程学报2018，Vol.15Issue(3)：614-620,7.
水热耦合作用下沥青−集料界面黏附性研究
Effects of hydro-thermal coupling on adhesion between asphalt and aggregate
摘要
Abstract
In order to evaluate the effect of environmental factors on the adhesion between asphalt and aggregate, a quantitative determination on the influence of hydro-thermal coupling on the interface adhesion asphalt and aggregate with photoelectric colorimetry is needed. Three types of asphalt and two types of aggregates were used, which were matrix asphalt, SBS modified asphalt, high-viscosity asphalt and basalt, limestone. Water-boiling method and SEM were conducted to verify. It showed that the adhesion would decrease with hydro-thermal effect; SBS modified asphalt and high-viscosity asphalt showed good resistance to hydro-thermal effect with both aggregates. SBS modified asphalt is only applicable to short-term hydro-thermal coupling, and the long-term performance of high viscosity asphalt was better; Under the influence of hydro-thermal coupling, the shedding of asphalt on the surface of aggregate was not all stratiform, but shrink and attenuation from some areas of aggregate where the surface properties were poor, until the aggregate were bared absolutely;Photoelectric colorimetric method was quantitative and reliable for evaluating the adhesion between asphalt and aggregate.关键词
水热耦合/界面黏附/光电比色法/扫描电子显微镜Key words
hydro-thermal coupling/interface adhesion/photoelectric colorimetry/SEM分类
交通工程引用本文复制引用
崔宇超,马翔,孙孝语..水热耦合作用下沥青−集料界面黏附性研究[J].铁道科学与工程学报,2018,15(3):614-620,7.基金项目
国家自然科学基金青年基金资助项目(51408313) （51408313）
住房城乡建设部科学技术资助项目(2015-K4-017) （2015-K4-017）
南京林业大学高层次人才科研启动基金资助项目(G2014014) （G2014014）
