Breakage mechanisms of highly porous particles in 1D compression revealed by X-ray tomography
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Publication Date
2018Journal Title
Geotechnique Letters
ISSN
2049-825X
Publisher
Thomas Telford Ltd.
Volume
8
Issue
2
Pages
155-160
Type
Article
This Version
AM
Metadata
Show full item recordCitation
Guida, G., Casini, F., Viggiani, G., Andò, E., & Viggiani, G. (2018). Breakage mechanisms of highly porous particles in 1D compression revealed by X-ray tomography. Geotechnique Letters, 8 (2), 155-160. https://doi.org/10.1680/jgele.18.00035
Abstract
<jats:p> Grain breakage affects a number of geotechnical engineering problems. In this research study, the breakage of an artificial, porous granular material (light-expanded clay aggregate (LECA)) has been studied in one-dimensional compression with both standard laboratory techniques and in situ X-ray tomography during loading. X-ray tomography has revealed that there is a wide distribution of internal porosity among LECA particles, and particle tracking has been used, for the first time, to give an objective measurement of each particle's life expectancy. Links between micro- and macro-scale quantities are discussed. </jats:p>
Keywords
compressibility, in situ testing, particle crushing/crushability
Identifiers
External DOI: https://doi.org/10.1680/jgele.18.00035
This record's URL: https://www.repository.cam.ac.uk/handle/1810/286633
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