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Deformation Analysis of Asphalt Mixtures with Digital Image Correlation Method

机译:数字图像相关方法的沥青混合物的变形分析

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Based on digital image correlation method (DICM), this paper promotes a new method for tracking the movements of coarse aggregates of asphalt mixtures. The four-point bending fatigue test is applied as the observed test. The fatigue damage process of AC-16 asphalt mixture is observed by CCD camera. Results show that the new method is able to well reflect the exact displacement of coarse aggregates under different loading repetitions. And the movement trends also reflect the influences of cracks in the specimens. Compared to the original method, the new method provides more detail movement information of different materials (aggregates and asphalt binder). This method helps to the research of asphalt mixtures in meso-scale.
机译:基于数字图像相关方法(DICM),本文促进了一种跟踪沥青混合物粗聚集体的运动的新方法。 将四点弯曲疲劳试验应用于观察到的测试。 CCD相机观察到AC-16沥青混合料的疲劳损伤过程。 结果表明,新方法能够在不同加载重复下良好地反映粗聚集体的精确位移。 运动趋势也反映了标本裂缝的影响。 与原始方法相比,新方法提供了不同材料(骨料和沥青粘合剂)的更多细节运动信息。 该方法有助于研究中间规模中沥青混合物的研究。

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