灰关联方法确定沥青混合料矿料级配细观评价指标

Micro-structure evaluating indicators of gray correlation method determining asphalt mixture mining grading

为了确定沥青混合料矿料级配细观评价指标,采集了三种典型级配的切割断面图像,提取四种细观特征参数,对绘制的级配曲线和设计级配进行了灰关联分析。结果表明:平均直径级配曲线更能表征沥青混合料矿料级配组成。

In order to determine micro-structure evaluating indicators of asphalt mixture, the paper applies three kinds of typical grading cutting section image, extracting four kinds of micro-structure property parameters, and carries out gray correlation analysis of drawing grading curve and design grading. Results show that： average diameter grading curve can better express asphalt mixture grading composition.