Three-dimensional visualization of pore structure in hardened cement paste by the gallium intrusion technique

It is widely known that the pore structure of concrete strongly influences its physical properties. Therefore, we developed a technique for the visualization of the pore structure because of clearing it correctly. However, this visualization is limited to two-dimensional imaging for sections of the...

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Bibliographic Details
Published in:Cement and concrete research 2006-02, Vol.36 (2), p.330-336
Main Authors: Kurumisawa, Kiyofumi, Tanaka, Kyoji
Format: Article
Language:English
Subjects:
Applied sciences
Buildings. Public works
Cement concrete constituents
Cement paste (D)
Cements
Electron probe micro analysis (EPMA)
Exact sciences and technology
Gallium
Image analysis (B)
Materials
Microstructure (B)
Properties and test methods
Properties of anhydrous and hydrated cement, test methods
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Summary:It is widely known that the pore structure of concrete strongly influences its physical properties. Therefore, we developed a technique for the visualization of the pore structure because of clearing it correctly. However, this visualization is limited to two-dimensional imaging for sections of the specimen. As a result, in this study, we developed a technique for reconstructing the acquired 2D images of the pore structure into 3D form by stacking them. By using this image, the relationship between water permeability and pore connectivity was clarified, and it was shown clearly that the pore connectivity strongly affects the water permeability.
ISSN:0008-8846
1873-3948
DOI:10.1016/j.cemconres.2005.04.015