公路工程
公路工程
공로공정
Highway Engineering
2015年
5期
120-123
,共4页
李震%崔亚楠%韩吉伟%王乐%刘振正
李震%崔亞楠%韓吉偉%王樂%劉振正
리진%최아남%한길위%왕악%류진정
沥青%盐冻循环%感温性能%粘附性
瀝青%鹽凍循環%感溫性能%粘附性
력청%염동순배%감온성능%점부성
asphalt%salt freezing circulation%temperature sensitivity%adhesion
在严寒地区，盐冻循环对沥青路面的结构稳定性能会产生很大影响。通过室内冻融循环试验，对基质沥青、SBS（styrene-butadiene-styrene block copolymer）改性沥青在盐冻循环前后的3大指标进行了测试，同时对沥青与粗集料的粘附性试验进行了改进，分析了盐冻循环前后粘附性的变化情况。结果表明：2种沥青经盐冻循环后，感温性能、高温性能、低温性能及其粘附性均有不同程度变化。
在嚴寒地區，鹽凍循環對瀝青路麵的結構穩定性能會產生很大影響。通過室內凍融循環試驗，對基質瀝青、SBS（styrene-butadiene-styrene block copolymer）改性瀝青在鹽凍循環前後的3大指標進行瞭測試，同時對瀝青與粗集料的粘附性試驗進行瞭改進，分析瞭鹽凍循環前後粘附性的變化情況。結果錶明：2種瀝青經鹽凍循環後，感溫性能、高溫性能、低溫性能及其粘附性均有不同程度變化。
재엄한지구，염동순배대력청로면적결구은정성능회산생흔대영향。통과실내동융순배시험，대기질력청、SBS（styrene-butadiene-styrene block copolymer）개성력청재염동순배전후적3대지표진행료측시，동시대력청여조집료적점부성시험진행료개진，분석료염동순배전후점부성적변화정황。결과표명：2충력청경염동순배후，감온성능、고온성능、저온성능급기점부성균유불동정도변화。
In cold region,the salt freezing circulation would have a significant impact on the struc-tural stability of the asphalt pavement.In this paper,through the freezing-thawing cycle test,the three in-dexes about the matrix asphalt and SBS(styrene-butadiene-styrene block copolymer)modified asphalt be-fore and after the salt freezing circulation were conducted.At the same time,adhesion test of asphalt and coarse aggregate was improved.Also the changes of adhesion before and after salt freezing circulations were analyzed.The results showed that temperature sensitivity,high temperature performance,low temper-ature performance and adhesion of the two asphalts after salt freezing circulations were changed in differ-ent degrees.
