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  1. B200 工学部/工学研究科
  2. B200a 雑誌掲載論文
  3. 学術雑誌

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/2237/25741
6cde4c22-7420-4883-a771-229b557e4697
名前 / ファイル ライセンス アクション
Manuscript.pdf Manuscript.pdf ファイル公開:2019/01/01 (1.7 MB)
Item type 学術雑誌論文 / Journal Article(1)
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

WEKO 69953

en Maruyama, Ippei

Search repository
Sakamoto, Naoki

× Sakamoto, Naoki

WEKO 69954

en Sakamoto, Naoki

Search repository
Matsui, Kunio

× Matsui, Kunio

WEKO 69955

en Matsui, Kunio

Search repository
Igarashi, Go

× Igarashi, Go

WEKO 69956

en Igarashi, Go

Search repository
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
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
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