| 種別 | 論文 |
| 主題 | 初期材令に高温履歴を受けたコンクリートのAE法によるマイクロクラックの特徴 |
| 副題 | |
| 筆頭著者 | Ha Ngoc SON（Yokohama National University） |
| 連名者1 | 細田暁（横浜国立大学） |
| 連名者2 | 渡邉健（徳島大学） |
| 連名者3 | |
| 連名者4 | |
| 連名者5〜 | |
| キーワード | マイクロクラック、AE法、若材令コンクリート、高温履歴、高炉スラグ、microcracking、acoustic emission、early age concrete、elevated temperature、blast furnace slag |
| 巻 | 32 |
| 号 | 1 |
| 先頭ページ | 323 |
| 末尾ページ | 328 |
| 年度 | 2010 |
| 要旨 | AE technique was used to characterize microcracking in concrete from the age of 1.5hrs, under temperature from 20 to 60oC. Microcracks occurred considerably in the cooling period. Driving force induced by incompatibility of deformation between mortar and coarse aggregate. The tendency of tensile strength loss agreed with AE results. Damage in GGBFS concrete was severer than that in OPC concrete due to larger number of small microcracks. Concrete was deteriorated considerably under cyclic temperature. Mitigating measures by using LWA and coarse aggregate of suitable type and size were proposed. |
| PDFファイル名 | 032-01-1046.pdf |