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Rutting test evaluation of asphalt mixture RLWT based on Industrial CT

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Document pages: 8 pages

Abstract: In order to eliminate the influence of image brightness difference on material component separation and identification, a ring segmentation and segmentation threshold segmentation method are proposed. This means that different segmentation thresholds are set for different regions of the same image, and then these different regions are combined into one image. In addition, by analyzing the CT images before and after RLWT rutting test of borehole specimen and Marshall specimen, and measuring the void volume and the angle between the maximum principal axis and X axis( α), The difference of the macroscopic test results of the two samples is discussed from the internal structure distribution. Here, we show that the macroscopic test results of the two samples are different due to the internal air vois and aggregate distribution, which should be considered for compliance testing.

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