摘要
为提高高海拔地区沥青混合料的低温抗裂性能和疲劳性能,分别以废胎胶粉和橡维联作为直投改性剂,开展直投式改性橡胶沥青及其混合料的性能研究。研究表明,当掺加集料质量1%的胶粉和橡维联时,动稳定度提高29.1%,低温应变提高22.4%,疲劳性能提高1.10倍,且不影响水稳定性,且直投式改性橡胶沥青混合料回弹对性能影响不明显。
To improve the low temperature crack resistance and fatigue performance of the asphalt mixture in high altitude area, with the crumb rubber powder and rubber respectively as the direct vat set modifier, this paper studied the performance of direct vat set modified rubber asphalt and its mixture.
作者
徐晓波
XU Xiao-bo(Key Laboratory of Highway Construction and Maintenance Technique in Loess Area, Shanxi Transportation Research Institute, Taiyuan, Shanxi 030006, Chin)
出处
《山西交通科技》
2017年第3期12-15,共4页
Shanxi Science & Technology of Transportation
关键词
直投式
废胎胶粉
路用性能
direct vat set
crumb rubber powder
road performance
