摘要
研究了3种级配沥青碎石混合料的低温抗裂性、水稳定性和高温稳定性.分别采用弯曲梁试验、冻融劈裂试验与车辙试验方法进行试验,并进行相关指标的对比分析.研究结果表明,不同级配对混合料性能具有较大影响.当采用混合料集料粗细集料相对比例较好的4#和6#级配,在最佳沥青含量下形成良好的骨架结构后,混合料各项性能都较好.
Through bending beam test, freeze-thaw split test and wheel track rutting test, the indexes of the mixtures were contrasted. The test result reveals that the gradation has a rather remarkable influence on asphalt macadam performance. When the 4 g gradation and 6 g gradation are utilized with rational coarse aggregate content and fine aggregate content, a favorable framework structure of the asphalt macadam mixture can be formed at the optimal asphalt content, which will result in excellent performance.
出处
《长沙理工大学学报（自然科学版）》
CAS
2008年第1期11-15,共5页
Journal of Changsha University of Science and Technology:Natural Science
基金
国家自然科学基金资助项目(50208004)
湖南省自然科学基金资助项目(07JJ6091)
关键词
沥青碎石
级配
基层
性能
asphalt macadam
gradation
base
performance
