Sasobit掺量对再生半柔性路面路用性能影响研究  

The Influence of Sasobit Content on the Road Performance of Recycled Semi-flexible Pavement

作　　者：叶腾飞 包惠明[1] YE Tengfei;BAO Huiming(College of Civil and Construction Engineering,Guilin University of Technology,Guilin, Guangxi 541004,China)

机构地区：[1]桂林理工大学土木与建筑工程学院,广西桂林541004

出　　处：《公路工程》2022年第2期116-120,共5页Highway Engineering

基　　金：国家自然科学基金项目(51768016);广西高校中青年教师科研提升项目(2020KY34020)。

摘　　要：为了研究Sasobit掺量对再生半柔性路面路用性能的影响,以高温车辙试验、低温劈裂试验和冻融劈裂试验分析了不同Sasobit掺量的高温稳定性能、低温抗裂性能和水稳性能,并通过灰色关联分析Sasobit掺量对路用性能的影响。试验结果表明:Sasobit温拌剂能够提升半柔性路面的水稳性能、高温性能和低温抗裂性能,但不能无限制添加温拌剂,3%掺量性能最优;在温拌剂掺量超过3%时,低温抗裂性能出现下降,Sasobit温拌剂对路用性能影响强弱程度排序为:高温稳定性能>水稳性能>低温抗裂性能。In order to explore the influence of Sasobit content on the road performance of recycled semi-flexible pavement,the high temperature stability,low temperature crack resistance and water stability of different Sasobit content were analyzed by high temperature rutting experiment,low temperature splitting experiment and freeze-thaw splitting experiment.And analyze the influence of Sasobit content on road performance through gray correlation.The test results show that Sasobit warm mixing agent can improve the water stability,high temperature performance and low temperature crack resistance of semi-flexible pavement,but the warm mixing agent cannot be added unlimitedly.The performance of 3%mixing is the best,and when the mixing amount exceeds At 3%,the low-temperature anti-cracking performance decreases.The order of the degree of influence of the Sasobit warm-mixing agent on the road performance is high temperature stability>water stability>low temperature crack resistance.

关 键 词：半柔性路面 路用性能 温拌剂 灰色关联分析 

分 类 号：U416.2[交通运输工程—道路与铁道工程]