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Investigations of lightweight concrete by in situ compression tests using high-resolution computed tomography (μ-CT)
Zusammenfassung
The fracture behaviour of concrete is studied in various micro- and macrodamage models. This is important for estimating serviceability and stability of concrete structures. However, a detailed understanding of the material behaviour under load is often not available. In order to better interpret the fracture behaviour and pattern, images of lightweight concrete were taken using a highresolution computed tomography (μ-CT) scanner. The samples were loaded between the taken images and the load was kept constant during the measurement. This study describes the method used and how the data set was analysed to investigate displacements and cracks. It has been shown that displacements and damage to the concrete structure can be detected prior to failure, allowing conclusions to be drawn about the structural behaviour. In principle, the μ-CT measurement can be used to examine different kinds of concrete as well as other systems with inorganic binders and to compare the fracture behaviour of different systems.
Zitierform
In: Journal of Microscopy Volume 294 / Issue 2 (2024-02-24) , S. 177 - 190 ; eissn:1365-2818Förderhinweis
Gefördert im Rahmen des Projekts DEALZitieren
@article{doi:10.17170/kobra-2024062810428,
author={Umbach, Cristin and Middendorf, Bernhard},
title={Investigations of lightweight concrete by in situ compression tests using high-resolution computed tomography (μ-CT)},
journal={Journal of Microscopy},
year={2024}
}
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2024-06-28T10:42:17Z 2024-06-28T10:42:17Z 2024-02-24 doi:10.17170/kobra-2024062810428 http://hdl.handle.net/123456789/15885 Gefördert im Rahmen des Projekts DEAL eng Attribution-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nd/4.0/ crack development high-resolution computed tomography in situ compression test lightweight concrete porosity 620 Investigations of lightweight concrete by in situ compression tests using high-resolution computed tomography (μ-CT) Aufsatz The fracture behaviour of concrete is studied in various micro- and macrodamage models. This is important for estimating serviceability and stability of concrete structures. However, a detailed understanding of the material behaviour under load is often not available. In order to better interpret the fracture behaviour and pattern, images of lightweight concrete were taken using a highresolution computed tomography (μ-CT) scanner. The samples were loaded between the taken images and the load was kept constant during the measurement. This study describes the method used and how the data set was analysed to investigate displacements and cracks. It has been shown that displacements and damage to the concrete structure can be detected prior to failure, allowing conclusions to be drawn about the structural behaviour. In principle, the μ-CT measurement can be used to examine different kinds of concrete as well as other systems with inorganic binders and to compare the fracture behaviour of different systems. open access Umbach, Cristin Middendorf, Bernhard doi:10.1111/jmi.13279 Ultrahochfester Beton Leichtbeton UHPLC Computertomografie publishedVersion eissn:1365-2818 Issue 2 Journal of Microscopy 177 - 190 Volume 294 false
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Attribution-NoDerivatives 4.0 International