Study on the Carbonation Behavior of Cement Mortar by Electrochemical Impedance Spectroscopy
Autor: | Biqin Dong, Qiwen Qiu, Jiaqi Xiang, Canjie Huang, Feng Xing, Ningxu Han |
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Jazyk: | angličtina |
Rok vydání: | 2014 |
Předmět: |
electrochemical impedance spectroscopy
mortar electrochemical model parameter carbonation depth prediction Technology Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 |
Zdroj: | Materials, Vol 7, Iss 1, Pp 218-231 (2014) |
Druh dokumentu: | article |
ISSN: | 1996-1944 |
DOI: | 10.3390/ma7010218 |
Popis: | A new electrochemical model has been carefully established to explain the carbonation behavior of cement mortar, and the model has been validated by the experimental results. In fact, it is shown by this study that the electrochemical impedance behavior of mortars varies in the process of carbonation. With the cement/sand ratio reduced, the carbonation rate reveals more remarkable. The carbonation process can be quantitatively accessed by a parameter, which can be obtained by means of the electrochemical impedance spectroscopy (EIS)-based electrochemical model. It has been found that the parameter is a function of carbonation depth and of carbonation time. Thereby, prediction of carbonation depth can be achieved. |
Databáze: | Directory of Open Access Journals |
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