摘要
为研究纳米CaCO_3/SBS复合改性沥青混合料的路用性能,以壳牌A-70~#道路石油沥青为基质沥青,分别制备基质沥青、纳米CaCO_3改性沥青、SBS改性沥青和纳米CaCO_3/SBS复合改性沥青混合料。通过高温、低温、水稳定性和抗疲劳性能试验,对不同沥青混合料的路用性能进行对比分析,结果表明,CaCO_3/SBS复合改性沥青混合料的高温稳定性、水稳定性和抗疲劳性能有明显增强,而低温抗裂性能较SBS有所降低,但仍能满足规范要求。
In order to study the pavement performance of nano-CaCO3/SBS compound modified asphalt mixture,the matrix,nano-CaCO3 modified asphalt,SBS modified asphalt and nano-CaCO 3/SBS compound modified asphalt mixture were prepared with Shell A-70#road petroleum binder.The test of highway temperature,low temperature,water stability and fatigue test were conducted for analyzing the pavement performance of different asphalt mixtures.The results show that the high temperature stability,water stability and fatigue resistance of nano-CaCO3/SBS compound modified asphalt mixture are obviously enhanced,while the low temperature crack resistance is lower than SBS modified mixture,but still can meet the specification requirements.
作者
张立香
ZHANG Li-xiang(CCCC First Highway Consultants Co.,Ltd.,Xi’an,Shanxi 710064,China)
出处
《黑龙江交通科技》
2019年第2期1-3,共3页
Communications Science and Technology Heilongjiang
