【摘要】 沥青的化学组成不同对沥青的物理性能有着不同程度的影响。为了分析这些影响因素的显著性 ,采用改进的灰关联熵分析法 ,分析了影响沥青感温性指标的因素 ,结果表明 ,这种方法克服了一般灰关联度分析方法的不足 ,灰熵关联度大小不受分辨系数的影响。影响老化前沥青感温性指标的主要因素是极性芳香分 ,环烷芳香分 ,以及中分子尺寸分布和大分子尺寸分布 ;影响老化后沥青感温性指标的主要因素是沥青的沥青胶体不稳定指数 (IC)和沥青质以及大分子尺寸分布和中分子尺寸分布更多还原

【Abstract】 Some factors including asphalt components and molecular size distribution have effect on technical performance of asphalt The grey relation entropy method was used to analyze influence factors of temperature susceptibility of asphalt, the results showed that the grey relation entropy method can overcome disadvantage of normal grey relation method, the relation degree of grey entropy was not influenced by discriminant factor The main factors influenced temperature susceptibility before aged were polar aromatics, naphthene aromatics,large molecular size and medium molecular size of asphalt The main factors influenced temperature susceptibility after aged were colloidal instability index Ic, asphaltenes,large molecular size and medium molecular size of asphalt更多还原