摘要
为深入了解A级50#道路石油沥青对改善南方湿热地区沥青路面抵抗水损害、高温永久变形及大交通量的影响,通过对A级50#、70#沥青及改性沥青拌制的沥青混合料水稳定性、高温稳定性抗压回弹模量和劈裂抗拉强度的各项指标进行试验分析,结果表明,50#硬质沥青在南方湿热地区可代替改性沥青用于中面层。
In order to deeply understand the improvement of class A No. 50 road petroleum asphalt for asphalt pavement in southern humid and tropic areas against influences of water damages, high-temperature permanent deformation and large traffic volume, this paper carries out the test analysis for various indices including water stability, high-temperature stability, compressive resilience modulus and tensile splitting strength of the asphalt mixture from class A No. 50 asphalt, No. 70 asphalt and modified asphalt, and the results indicate that the No. 50 hard asphalt can be used in middle course instead of modified asphalt in southern humid and tropic areas.
出处
《公路交通技术》
2010年第1期40-42,52,共4页
Technology of Highway and Transport
关键词
湿热地区
硬质沥青
路用性能
研究
humid and tropic areas
hard asphalt
road performance
research
