合成材料老化与应用2024，Vol.53Issue(4)：66-68,3.
坡缕石改性沥青混合料施工稳定性研究
Study on Construction Stability of Palygorskite Modified Asphalt Mixture
摘要
Abstract
The influence of palygorskite on the compatibility stability of SBS modified asphalt and the road performance stability of asphalt mixtures were studied by asphalt segregation test,additive content comparison test,Marshall strength test and freeze-thaw splitting test.The results showed that,the degree of segregation between palygorskite powder and asphalt was reduced,the compatibility between palygorskite powder and asphalt was improved by surface modification.The Marshall strength and the freeze-thaw splitting strength ratio of palygorskite modified asphalt mixture were the best via wet mixing,the effect of Marshall strength and freeze-thaw splitting strength ratio were the same as wet mixing by increasing mixing time when the dry mixing method was used.Based on this,the construction of inorganic micro powder modified asphalt mixture should adopt by wet mixing,and surface modification of inorganic substances should be used firstly.And dry mixing can be used via increasing the mixing time.关键词
道路工程/坡缕石/改性沥青/相容稳定性/施工稳定性Key words
road engineering/palygorskite/modified asphalt/compatibility stability/construction stability分类
交通工程引用本文复制引用
史岩..坡缕石改性沥青混合料施工稳定性研究[J].合成材料老化与应用,2024,53(4):66-68,3.基金项目
河南省交通科技项目(2016Y5). （2016Y5）
