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| Content Provider | Springer Nature Link |
|---|---|
| Author | Ji, Yongsheng Yuan, Yingshu Shen, Jianli Ma, Yuqiang Lai, Shaoping |
| Copyright Year | 2010 |
| Abstract | To compare the results obtained under both natural and accelerated environments, the pH values of carbonated concrete were measured, the variation of pH values was determined, and the variations of Ca(OH)$_{2}$ and CaCO$_{3}$ contents in the carbonated concrete under natural condition and high CO$_{2}$ concentration accelerated climate environments were determined by microcosmic test methods such as DTA and X-ray diffraction. The experimental results showed that the overall variation trend of pH values and phase component of carbonation layer of concrete under accelerated climate environments with high CO$_{2}$ concentrations were the same as those under natural conditions. Therefore, the carbonation processes of concrete were considered consistent under both conditions. However there was a difference in the length of semi-carbonation zones. The one measured under high CO$_{2}$ concentration accelerated climate environments was shorter than that under natural condition. Experimental investigation showed that it was caused by the differences in climate condition (temperature and relative humidity) as well as the properties of the concrete. The concentration of CO$_{2}$ and the duration of the carbonation process have no effect on the length of semi-carbonation zone. Thus, it is acceptable to simulate the natural condition by applying the high CO$_{2}$ concentration artificial accelerated carbonation technique for the purpose of the study of carbonation process of concrete. |
| Starting Page | 515 |
| Ending Page | 522 |
| Page Count | 8 |
| File Format | |
| ISSN | 10002413 |
| Journal | Journal of Wuhan University of Technology-Mater. Sci. Ed. |
| Volume Number | 25 |
| Issue Number | 3 |
| e-ISSN | 19930437 |
| Language | English |
| Publisher | Wuhan University of Technology |
| Publisher Date | 2010-06-12 |
| Publisher Place | Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | natural carbonation artificial accelerated carbonation phase component semi-carbonation zone correlation Materials Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Materials Science |
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