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Study Asphalt Mixture Damage Characteristics Based on X-CT Technology

机译：基于X-CT技术的沥青混合损伤特性研究

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摘要

In order to research the development of the internal cracks and the evolution of damage in asphalt mixture under loads, German Compact-225 type industrial X-ray computerized tomography (X-CT) was used to scan the specimen of asphalt mixture and the visualization of the internal damage process could be achieved, the damage under loads in various stages could be described accurately. Then, the damage evolution process was analyzed by calculating CT numbers, and a curvilinear relationship between the damage variable and the strain-stress was established. The results indicate that X-CT technology can be used as an effective way to detect and analyze the meso-damage of the asphalt mixture and that it further provides an important basis for quantitatively describing the evolution rule of the meso-damage.
机译：为了研究内部裂缝的发展和负载下沥青混合物损伤的演变，德国Compact-225型工业X射线电脑断层扫描（X-CT）用于扫描沥青混合物的样本和可视化 可以实现内部损伤过程，可以确定各个阶段的负载下的损坏。 然后，通过计算CT数来分析损伤进化过程，并且建立了损伤变量与应变应力之间的曲线关系。 结果表明，X-CT技术可用作检测和分析沥青混合料的中间损伤的有效方法，并进一步为定量描述中间损伤的演化规则提供重要依据。

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