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Analysis of the effect of heating and re-curing on the microstructure of high-strength concrete using X-ray CT
| Title: | Analysis of the effect of heating and re-curing on the microstructure of high-strength concrete using X-ray CT |
| Authors: | Henry, Michael Browse this author | | Darma, Ivan Sandi Browse this author | | Sugiyama, Takafumi Browse this author |
| Keywords: | Microstructure | | Connectivity | | High temperature | | Re-curing | | X-ray CT | | Non-destructive evaluation | | High-strength concrete |
| Issue Date: | 30-Sep-2014 |
| Publisher: | Elsevier |
| Journal Title: | Construction and Building Materials |
| Volume: | 67 |
| Issue: | Part A |
| Start Page: | 37 |
| End Page: | 46 |
| Publisher DOI: | 10.1016/j.conbuildmat.2013.11.007 |
| Abstract: | Microstructure recovery plays an important role in restoring the performance of concrete damaged by fire. This research applied X-ray CT and image analysis techniques to non-destructively examine the internal microstructure of high-strength concrete in order to clarify the effects of heating and re-curing on microstructure characteristics. Heating caused an increase in total pore space due to an increase in connectivity caused by the formation of cracks in the mortar-aggregate interface and bridging cracks. Water re-curing, however, was effective in recovering microstructure through the reduction in connected pore space, with most recovery occurring within 7 days. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/57545 |
| 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: HENRY Michael Ward
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