Abstract: The adhesion of asphalt with aggregates affect the duration property of asphalt mixtures,if aggregates are very poor and not modified,it can't gain stabilited mixtures.So the paper researches on the effect of aggregate alkali number on water stability,at last,the aggregate alkali number with water stability standard of asphalt mixtures is put forward.

Key words: water stability, adhesion property, alkali number

摘要： 沥青与石料粘附性好坏直接影响着沥青混合料的耐久性.如果石料选择不当且不掺外加剂,这就很难得到稳定的沥青混合料,为此本文探讨了不同性质的石料对沥青混合料水稳定性的影响,并提出了满足沥青混合料水稳定性指标的石料碱值大小.

关键词: 水稳定性, 粘附性, 碱值