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タイトル: Comparison of observed and simulated cement microstructure using spatial correlation functions
著者: Igarashi, Shin-ichi link image link image
Chen, W.
Brouwers, H.J.H.
五十嵐, 心一
発行日: 2009年10月
出版社(者): Elsevier
雑誌名: Cement and Concrete Composites
ISSN: 0958-9465
巻: 31
号: 9
開始ページ: 637
終了ページ: 646
キーワード: Back-scattered-electron imaging
Cement paste
Microstructure
Modeling
Second-order statistics
Spatial set
抄録: The microstructure of cement pastes, as revealed by SEM-BSE image analysis, was compared with a simulated structure generated by the University of Twente version of the CEMHYD3D hydration simulation model. The spatial array of unhydrated cement particles was simulated by the model. However, spatial features in capillary pore structure obtained by the simulation are different from the observed microstructure. This disagreement in the spatial structure is to be expected since there are fundamental differences in porosity as represented by the two methods. Only coarse pores are detected in the SEM examination while the total capillary porosity and its whole spatial distribution are virtually simulated in the model. A subset of the visible pores must be different in spatial statistics from the universal set of total porosity. Care must therefore be taken in interpreting agreement between simulation output and microscopically observed microstructure in images. © 2009 Elsevier Ltd. All rights reserved.
DOI: 10.1016/j.cemconcomp.2009.06.008
URI: http://hdl.handle.net/2297/19416
関連URI: http://www.elsevier.com/locate/issn/09589465
資料種別: Journal Article
版表示: author
出現コレクション:1.査読済論文(工)

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