Application of X-ray microtomography to quality assessment of fibre cement boards

•The differences in material compactness of fibre-cement specimens were established.•Using micro-CT specimens produce different images of their microstructure.•The effect of microstructure tightening due to saturation was detectable.•The described method can be applied as the useful tool for testing...

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Bibliographic Details
Published inConstruction & building materials Vol. 110; pp. 182 - 188
Main Authors Schabowicz, Krzysztof, Ranachowski, Zbigniew, Jóźwiak-Niedźwiedzka, Daria, Radzik, Łukasz, Kudela, Stanislav, Dvorak, Tomas
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.05.2016
Subjects
Computational modelling
Delamination of fibres
Fibre cement boards
X-ray microtomography
Fibre cement boards
Delamination of fibres
Computational modelling
X-ray microtomography
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Summary:•The differences in material compactness of fibre-cement specimens were established.•Using micro-CT specimens produce different images of their microstructure.•The effect of microstructure tightening due to saturation was detectable.•The described method can be applied as the useful tool for testing the structures. In this paper a method of X-ray microtomography (micro-CT) was employed for a direct insight into a microstructure of fibre cement boards of different quality. Four specimens were subjects of examination. Two parameters were determined to characterize the level of compaction of fibres in concrete matrix: mean-square displacement of migrating virtual particles after 500,000 of time steps and a diffusive tortuosity. The results of the investigation had revealed that fibre cement boards differing in density produce different images after processing with micro-CT method. The effect of microstructure tightening due to saturation using dying agent was also detectable.
ISSN:0950-0618
1879-0526
DOI:10.1016/j.conbuildmat.2016.02.035