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Estimation of ice formation in mortar saturated with sodium chloride solutions
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Title: | Estimation of ice formation in mortar saturated with sodium chloride solutions |
Authors: | Wang, Yi Browse this author | Gong, Fuyuan Browse this author | Zhang, Dawei Browse this author | Ueda, Tamon Browse this author →KAKEN DB |
Keywords: | Ice content | Sodium chloride | Solution concentration | Pore size distribution | Electrical response | Freeze-thaw cycles |
Issue Date: | 30-Jul-2017 |
Publisher: | Elsevier |
Journal Title: | Construction and building materials |
Volume: | 144 |
Start Page: | 238 |
End Page: | 251 |
Publisher DOI: | 10.1016/j.conbuildmat.2017.03.073 |
Abstract: | Frost damage of concrete is usually caused by ice expansion, therefore, the ice formation of NaCI solutions is of significant importance for predicting the mechanical degradation of concrete under the combined frost action and NaCl attack. In this study, the ice formation in cementitious materials saturated with different concentrations of NaCI solution is theoretically investigated first. Then the ice formation in mortar is further studied experimentally by electrical measurements. To estimate the ice amount based on the electrical measurements, the relationship between temperature, saturation degree, solution concentration and the electrical conductivity of mortar specimen is clarified. With regard to ice formation and salt crystallization during freeze-thaw, the ice content estimation model is proposed for mortar specimens. In addition, electrical response of meso-scale mortar specimens saturated with NaCl solutions with freeze thaw cycles (FTCs) is measured. The electrical test results are interpreted with the proposed model and the ice formation is estimated with FTCs. The results from electrical measurements are compared with the theoretical calculations, and acceptable agreement is observed. |
Rights: | © 2017, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ | http://creativecommons.org/licenses/by-nc-nd/4.0/ |
Type: | article (author version) |
URI: | http://hdl.handle.net/2115/75044 |
Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 上田 多門
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