Abstract: Based on the SAC gradation theory and SMA skeleton judge standard。from the ansh of the mixture skeleton’S dense situation，the influences of three factors induding the coarse，separating aggregate contents and void mixture on the hligh temperature stability peforman ce are analyzed.Result shows that the content of separating part of the aggregate has strong efect both on the mixture’S skeleton construction and on the compaction pe rformance，an d on the mixture’S skeleton and dense degree are relevant to the hi gh temperature stability pe rformance in a kind of parabola rule.

Key words: gradation, skeleton dense situation, hig}l temperature stability performance

摘要： 以SAC级配理论和SMA骨架判断标准为基础，从混合料骨架密实结构角度分析了粗集料含量、撑持料含量及 空隙率三个因子对混合料的高温稳定性的影响.结果表明：撑持料的含量对混合料的骨架结构及压实性能都有较大 影响，混合料的骨架密实度与其高温稳定性呈抛物线关系.

关键词: 级配, 骨架密实结构, 高温稳定性