Base on digital image process technique, the microstructure of hot mix asphalt is analyzed, and present a series of microstructure parameters including the holes distribution, aggregate distribution and major axis angle distribution are presented. The result illustrate that the microstructure indexes can evaluate the internal structure difference of hot mix asphalt.%采用数字图像处理方法,对沥青混合料取芯试件图像进行处理和分析,建立一套分析沥青混合料细观组成结构的指标,包括孔洞分布参数,集料与胶浆分布参数,以及主轴角度分布参数.选取4种沥青混合料级配进行研究,结果表明各细观结构指标能够定量评价不同级配和压实方法的沥青混合料之间的结构差异.
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