期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 108, 期 -, 页码 10-21出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2016.01.032
关键词
Asphalt mixtures; X-ray computed tomography; Moisture distribution; Visualization
资金
- Natural Science Foundation of China [51208154]
- Distinguished Young Scholars Foundation of China [51225803]
A combination of advances both with respect to experimental techniques as well as image processing procedures accurately describes moisture distribution in the internal structure of asphalt mixtures using X-ray computed tomography technology. The quantitative and qualitative X-ray CT results for partially saturated asphalt mixtures are displayed, which is obtained with different test parameters of X-ray CT and sample sizes to demonstrate the effect of these parameters on measurement accuracy of the hydraulics of asphalt mixtures using X-ray CT images, considering the aspects of both image resolution and contrast. In addition, we present several applications of our two-dimensional X-ray CT images before and after saturation, which analyzes the moisture distribution in the micro-scale of asphalt mixtures with various loading sizes and speed. This method provides an effective opportunity to reveal the dynamic/static water distribution characteristics on the micro-scale of asphalt mixtures and verify various numerical modeling methods. (C) 2016 Elsevier Ltd. All rights reserved.
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