关键词: 级配, 骨架密实结构, 高温稳定性

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