SBS改性沥青在盐冻循环条件下的正交试验研究  

Orthogonal experiment research on the SBS modified asphalt under the condition of salt frozen cycle

作　　者：王宏斌[1] 刘振正 

机构地区：[1]内蒙古自治区交通建设工程质量监督局,内蒙古呼和浩特010020

出　　处：《内蒙古公路与运输》2015年第5期28-30,35,共4页Highways & Transportation in Inner Mongolia

摘　　要：考虑冰冻温度、融雪剂浓度、冻融循环次数,并选取相应的因素水平,利用正交试验分析方法,对SBS改性沥青在盐冻循环前后的感温性能、高低温性能指标进行了测试。结果表明,冰冻温度、融雪剂浓度、冻融循环次数对温度敏感性的影响程度为:融雪剂浓度>冻融循环次数>冰冻温度;对高低温性能的影响程度为:冻融循环次数>融雪剂浓度>冰冻温度;融雪剂浓度的变化对SBS改性沥青的感温性能、高低温性能影响较显著,融雪剂对SBS改性沥青中某些成分(改性剂)有破坏作用。Considering the freezing temperature, concentration of snowmeh agent, freezing and thawing cycles, and select the corresponding factors, using the method of orthogonal experiment analysis, tested the temperature sensing performance, high and low temperature performance of SBS modified asphalt before and after salt frozen cycle. Results show that the freezing temperature, concentration of snowmelt agent, freezing and thawing cycles on the influence degree of temperature sensitivity is： snow melt agent concentration 〉 freeze - thaw cycles 〉 freezing temperature ; impact on the properties of high and low temperature is ： the freezing and thawing cycles 〉 snow meh agent concentration 〉 frozen temperature; The impact of snowmeh agent concentration changes on the temperature sensing performance, high and low temperature performance of SBS modified asphalt is obvious, snowmeh agent has damage impact on some ingredients of SBS modified asphalt.

关 键 词：SBS改性沥青 盐冻循环 正交试验 感温性能 高低温性能 

分 类 号：U416.217[交通运输工程—道路与铁道工程]