摘要
通过对SMA-13、SAC-13、AC-133种级配在不同老化状态下,不同空隙率水平下进行室内冻融劈裂试验研究,发现3种混合料在不同老化状态下的水稳性均随空隙率增大而下降。试验验证了取SMA沥青混合料水破坏的临界空隙率为6%是合理的。试验发现,冻融劈裂试验不适合评价老化后沥青混合料的水稳定性。
By three gradation of SMA-13 ＆ SAC-13 and AC-13 in different aging state and different void content indoor freezing and thawing split test,it shows that moisture sensitivity of the three aggregate mixtures decreases with viod content increasing.The tests verified that 6% void content as critical void content of water damage of SMA asphalt mixtures is rational.The test proved that freezing and thawing split test is not suitable for evaluating moisture sensitivity of aged asphalt mixtures.
出处
《现代交通技术》
2006年第4期5-8,共4页
Modern Transportation Technology
关键词
道路工程
沥青路面
水稳定性
冻融劈裂
孔隙率
road enginerring
asphalt pavement
moisture sensitivity
freezing and thawing split
void Content
