SBS-SBR胶乳复合改性乳化沥青流变性能  

The Rheological Behavior of SBS-SBR Latex Composite Modification Emulsified Asphalt

作　　者：畅润田 

机构地区：[1]山西省交通科学研究院,山西太原030006

出　　处：《山西交通科技》2017年第6期44-47,共4页Shanxi Science & Technology of Transportation

基　　金：山西省科技厅基础研究项目2015021054

摘　　要：将改性剂SBS与SBR胶乳同时用于乳化沥青改性,充分发挥SBR胶乳与乳化沥青较好的相溶性和其对沥青低温、抗水损性能具有良好的改性效果,有效解决SBS改性沥青黏度较大乳化困难和低掺量时路用性能不佳的问题。首先从改性乳化沥青储存稳定性和蒸发残留物常规指标出发,得出不同掺量改性剂对乳化沥青的复合改性效果变化规律,之后通过样品在流变性能随温度和频率的变化趋势对其效果进行验证,并得到改性效果较好的改性方案。试验结果显示,在SBS掺量2%的基础上,添加3%的SBR胶乳可以大幅改善乳化沥青蒸馏残留物的弹性性能和高低温性能。This paper used the modifier SBS and SBR latex for the emulsified asphalt modification at the same time, which gave full play to the good compatibility of SBR latex and emulsified asphalt, and also had the good modification effect on the low temperature and water damage resistance, effectively solved the problem of SBS modified asphalt with large viscosity, difficulties in emulsification and poor road performance in low dosage.

关 键 词：乳化沥青 SBS SBR 复合改性 流变行为 

分 类 号：U414.75[交通运输工程—道路与铁道工程]