| 種別 | Paper |
| 主題 | The Required Compressive Strength and Prehardening Time to Prevent Damage to High Flowing Concrete from Frost Damage at Early Ages |
| 副題 | |
| 筆頭著者 | Mostafa KHANZADI（Hokkaido university） |
| 連名者1 | Yukio HAMA （Hokkaido university） |
| 連名者2 | Katsuhito KURIHARA （Hokkaido university） |
| 連名者3 | Eiji KAMADA （Hokkaido university） |
| 連名者4 | |
| 連名者5 | |
| キーワード | compressive strength, early freezing, frost damage, high flowing concrete, loss of strength, mineral fine powder, prehardening time, strength ratio, viscosity agent. |
| 巻 | 17 |
| 号 | 1 |
| 先頭ページ | 151 |
| 末尾ページ | 156 |
| 年度 | 1995 |
| 要旨 | This investigation was undertaken to develop data on the early frost resistance of high flowing concrete made either with various type of mineral fine powders or viscosity agents. From the results of this investigation it was found that the test cylinders cast from air entrained concrete (ie., air>3.5%)which cured up to 23°D.D prior to freezing, performed with satisfactory resistance to early freezing and thawing cycles. However the 28 days strength ratio of all AE specimens were above 100%. This study recommends early continuous protection until AE high flowing concrete has attained compressive strength of 70 to 80 kg/cm2. |
| PDFファイル名 | 017-01-1025.pdf |