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在对沥青路面芯样进行轴向压缩疲劳试验时,结合CT扫描技术拍摄了不同疲劳阶段下沥青混凝土的细观结构图像,利用CT图像计算分析试件疲劳损伤演化过程,提出相应的损伤变量并获得材料的损伤演化方程。在有限的试验研究基础上,运用该方法研究不同级配条件下的沥青混凝土的损伤演化是可行的。
In the axial compression fatigue test of asphalt pavement core sample, the mesoscopic structure images of asphalt concrete under different fatigue stages were taken with CT scanning technique. The fatigue damage evolution process of the specimen was analyzed and calculated by using CT images. The corresponding damage variables Obtain the damage evolution equation of the material. Based on the limited experimental research, it is feasible to study the damage evolution of asphalt concrete under different gradation conditions by using this method.