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Microstructural changes in white Portland cement paste under the first drying process evaluated by WAXS, SAXS, and USAXS
http://hdl.handle.net/2237/25741
http://hdl.handle.net/2237/257416cde4c22-7420-4883-a771-229b557e4697
名前 / ファイル | ライセンス | アクション |
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Manuscript.pdf ファイル公開:2019/01/01 (1.7 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-03-21 | |||||
タイトル | ||||||
タイトル | Microstructural changes in white Portland cement paste under the first drying process evaluated by WAXS, SAXS, and USAXS | |||||
言語 | en | |||||
著者 |
Maruyama, Ippei
× Maruyama, Ippei× Sakamoto, Naoki× Matsui, Kunio× Igarashi, Go |
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アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Drying (A) | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Calcium–silicate–hydrate (C–S–H) (B) | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Small-angle X-ray scattering (B) | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Microstructure (B) | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Adsorption (C) | |||||
抄録 | ||||||
内容記述 | Meso- and micro-scale structural changes in matured hardened cement paste dried slowly for 1.5 years at different relative humidities (RHs) are evaluated by small-angle X-ray scattering profiles covering a q range of 0.017 nm− 1–30 nm− 1 with a fractal disc-shaped particle analysis and Guinier approximation. The fractal disc-shaped particle analysis revealed that calcium–silicate–hydrate (C–S–H) agglomerations are very thin (~ 2.5 nm) and of relatively large width (~ 35 nm) under high RH conditions. However, the agglomerations are segmented (in width) into ~ 10 nm below an RH of 40%. The Guinier approximation found the possibility that the scattering profiles in the range of 2 nm− 1–8 nm− 1 correspond to a spacing between C–S–H monolayers and it showed stepwise changes at 40%–50% RH. The stepwise behavior of the distance between C–S–H monolayers may explain a kink in water vapor desorption at around 40% RH. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | Elsevier | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
出版タイプ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1016/j.cemconres.2016.10.002 | |||||
ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0008-8846 | |||||
書誌情報 |
en : Cement and Concrete Research 巻 91, p. 24-32, 発行日 2017-01 |
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著者版フラグ | ||||||
値 | author | |||||
URI | ||||||
識別子 | http://dx.doi.org/10.1016/j.cemconres.2016.10.002 | |||||
識別子タイプ | DOI | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2237/25741 | |||||
識別子タイプ | HDL |