| Autor: |
M. Mizoguchi, Kenji Kawai, Yuko Ogawa, Tatsuya Kitagawa, Totsawat Daungwilailuk |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
Lecture Notes in Civil Engineering ISBN: 9789811551437 |
| Popis: |
Concrete as one of main building materials can have a risk of an exposure to high temperature environment in its service life. Generally, concrete after exposed to high temperature of approximately 300 °C do not need repairing and its compressive strength can recover after a while by re-hydration reaction. On the other hand, it is also reported that the high temperature can adversely affect the durability of concrete, which can be strongly related to moisture transfer. This study aims to investigate the moisture transfer in mortar after exposure to high temperature by using electrical resistance method. Two heating methods including plate-heating and radiation-heating were used in this study. The results showed that the temperature inside the specimen during heating was totally different depending on the heating methods even when the heating curve was almost the same. It was observed by using electrical resistance method that the mortar near the exposed surface may have higher moisture content after the radiation heating than after the iron plate heating. It can be attributed to the difference in the temperature inside the specimen during heating. However, the further investigation should be needed on the effect of the exposure surface condition on the moisture transfer. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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