| 種別 | 論文 |
| 主題 | Characterization of crack geometry in fire-damaged high-strength concrete under re-curing using X-ray CT |
| 副題 | |
| 筆頭著者 | Michael HENRY（Hokkaido University） |
| 連名者1 | Ivan Sandi DARMA（Hokkaido University） |
| 連名者2 | 杉山隆文（北海道大学） |
| 連名者3 | |
| 連名者4 | |
| 連名者5〜 | |
| キーワード | 火害、水中再養生、ひび割れ形状、ひび割れ分布、X線CT、fire damage、water re-curing、crack geometry、crack distribution、X-ray CT |
| 巻 | 35 |
| 号 | 1 |
| 先頭ページ | 1177 |
| 末尾ページ | 1182 |
| 年度 | 2013 |
| 要旨 | This research applied X-ray microtomography and image analysis techniques to characterize the changes in crack geometry in a high-strength concrete specimen after heating at 600oC and subsequent water re-curing up to 28 days. Results showed that cracks formed in the mortar-aggregate interface and bridged between aggregates, as well as enlarged the existing air voids. Water re-curing reduced the total crack space and a finer crack distribution could be observed after 28 days, but healing of surface cracks reduced water supply and limited healing in the inner part of the concrete. |
| PDFファイル名 | 035-01-1192.pdf |