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Determination of water-cement ratios of hardened cement pastes based on the estimation of under-pixel porosity in backscattered electron images
http://hdl.handle.net/2297/33399
http://hdl.handle.net/2297/33399e5518e25-ed03-49da-b712-ab5d3fd2302e
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
TE-PR-IGARASHI-S-4.pdf (471.1 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2017-10-03 | |||||
| タイトル | ||||||
| タイトル | Determination of water-cement ratios of hardened cement pastes based on the estimation of under-pixel porosity in backscattered electron images | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 著者 |
Hoang, DangGiang
× Hoang, DangGiang× Igarashi, Shinichi |
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| 書誌情報 |
International Journal of Structural Engineering 巻 4, 号 1-2, p. 4-13, 発行日 2013-01-01 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1758-7328 | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1504/IJSTRUCTE.2013.050760 | |||||
| 出版者 | ||||||
| 出版者 | Inderscience Enterprises | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | SEM-BSE image analysis technique is one of promising approaches to determine water/cement ratios in hardened cementitious materials. In this study, a method using under-pixel information in the BSE images is proposed. It is hypothesised that a grey level of each pixel reflects the under-pixel porosity. It is also assumed that the porosity smaller than the resolution results in the shifts in position of the grey levels of specific phases. The amounts of shifting are combined with the Powers and Brownyard model so that the degree of hydration is directly estimated from the BSE images. The method was applied to hardened cement pastes with different water/cement ratios. There was a good agreement between estimated and real water/cement ratios. An estimate within an error of ±0.02 was attained except an extremely low water/cement ratio. The shift in the grey level histogram is useful information on microstructure in cement pastes. Copyright © 2013 Inderscience Enterprises Ltd. | |||||
| 著者版フラグ | ||||||
| 出版タイプ | AM | |||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
| 関連URI | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://www.inderscience.com/offer.php?id=50760 | |||||
