Evaluation of cracking damage in freeze-thawed concrete using acoustic emission and X-ray CT image
Evaluation of cracking damage in freeze-thawed concrete using acoustic emission and X-ray CT image
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DOI：
10.1016/j.conbuildmat.2016.09.013
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发表时间：
2017-04-01
影响因子：
7.4
通讯作者：
Ohtsu, Masayasu
中科院分区：
文献类型：
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作者：
Suzuki, Tetsuya;Shiotani, Tomoki;Ohtsu, Masayasu
混凝土结构的耐久性很容易因环境影响而降低。为了有效地维护混凝土结构，不仅要评估其力学性能值，还要评估其损伤程度。在这项研究中，混凝土的损伤估计建议进行，应用AE和X射线CT。混凝土芯样取自受冻融过程强烈影响的既有渠道钢筋混凝土柱。因此，AE和X射线CT参数之间的关系是相关的，和混凝土的损伤定量估计使用AE和X射线CT。(C)2016爱思唯尔有限公司版权所有。
The durability of concrete structures decreases easily due to such environmental effects. For effective maintenance of concrete structures, it is necessary to evaluate not only the values of mechanical properties but also the degree of damage. In this study, damage estimation of concrete is proposed to be performed, applying AE and X-ray CT. Testing concrete core samples were taken from reinforced concrete columns of an existing canal, which is strongly affected by freeze and thawed process. Thus, a relation between AE and X-ray CT parameters is correlated, and the damage of concrete is quantitatively estimated using AE and X-ray CT. (C) 2016 Elsevier Ltd. All rights reserved.