| タイトル |
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en
Analysis of microstructural images of dry and water-saturated compacted bentonite samples observed with X-ray micro CT
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| 作成者 |
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| アクセス権 |
open access |
| 主題 |
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Other
en
micro computed tomography
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Other
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geological disposal
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Other
en
montmorillonite
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Other
en
compacted bentonite
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NDC
569
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| 内容注記 |
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Abstract
en
Compacted bentonite, of which the major clay mineral is montmorillonite, is a candidate buffer material for geological disposal of high-level radioactive waste. In this study, a microfocus X-ray computed tomography (micro-CT, X-ray micro-scope), which enables non-destructive, three-dimensional observation of the interior microstructure of a sample with high resolution (several microns), examined compacted montmorillonite samples under dry and water-saturated states. The images thus obtained were analyzed by a computer code developed for this study to obtain the information on the size and shape of montmorillonite grains in the samples before and after the water saturation. From the results of the image analysis, it can be supposed that the outer montmorillonite sheets of grains swelled and formed a gel, whereas the inner montmorillonite sheets did not change significantly in the water-saturation process.
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| 出版者 |
en
Elsevier B.V.
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| 日付 |
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| 言語 |
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| 資源タイプ |
journal article |
| 出版タイプ |
AM |
| 資源識別子 |
HDL
http://hdl.handle.net/2115/42844
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| 関連 |
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isVersionOf
DOI
https://doi.org/10.1016/j.clay.2008.09.001
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| 収録誌情報 |
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en
Applied Clay Science
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巻47
号1-2
開始ページ65
終了ページ71
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| ファイル |
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| コンテンツ更新日時 |
2023-07-26 |
