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  1. D300 大学院環境学研究科
  2. D300a 雑誌掲載論文
  3. 学術雑誌

Creep behavior of C-S-H under different drying relative humidities: Interpretation of microindentation tests and sorption measurements by multi-scale analysis

http://hdl.handle.net/2237/00032623
7b51eb40-b867-415b-abb9-14d6cb124207
名前 / ファイル ライセンス アクション
Manuscript_R1_20191225.pdf Manuscript_R1_20191225 (869.7 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2020-09-14
タイトル
タイトル Creep behavior of C-S-H under different drying relative humidities: Interpretation of microindentation tests and sorption measurements by multi-scale analysis
著者 Suwanmaneechot, Piyapong

× Suwanmaneechot, Piyapong

WEKO 101195

Suwanmaneechot, Piyapong

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Aili, Abudushalamu

× Aili, Abudushalamu

WEKO 101196

Aili, Abudushalamu

Search repository
Maruyama, Ippei

× Maruyama, Ippei

WEKO 101197

Maruyama, Ippei

Search repository
権利
権利情報 © 2020. 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 Creep (C)
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 Drying (A)
キーワード
主題Scheme Other
主題 Microindentation (B)
キーワード
主題Scheme Other
主題 Surface area (B)
抄録
内容記述 The mechanism behind the creep of concrete is primarily governed by calcium silicate hydrate (C-S-H). The results presented in this study demonstrate the effect of varying relative humidity, water-to-cement ratios, and cement type on the creep properties of hardened cement paste as determined by microindentation. Water vapor sorption and XRD/Rietveld analysis were used to characterize the tested cement paste samples. Multi-scale analysis was also applied to downscale the creep properties of the cement paste to that of the C-S-H gel. When the drying relative humidity decreased, the specific surface area decreased whereas the bulk modulus of the C-S-H gel increased. This increase of creep modulus may be explained by the sliding of C-S-H sheets as lubricated by water molecules. Drying reduces the specific surface area, resulting in increased difficulty in the sliding of C-S-H sheets; hence, the creep modulus increases.
内容記述タイプ Abstract
内容記述
内容記述 ファイル公開:2022-06-01
内容記述タイプ Other
出版者
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
DOI
関連識別子
識別子タイプ DOI
関連識別子 https://doi.org/10.1016/j.cemconres.2020.106036
ISSN(print)
収録物識別子タイプ ISSN
収録物識別子 0008-8846
書誌情報 Cement and Concrete Research

巻 132, p. 106036, 発行日 2020-06
著者版フラグ
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