Breakage mechanisms of highly porous particles in 1D compression revealed by X-ray tomography
Accepted version
Peer-reviewed
Repository URI
Repository DOI
Change log
Authors
Casini, F https://orcid.org/0000-0001-7933-9055
Viggiani, GMB https://orcid.org/0000-0002-0993-0322
Viggiani, GMB https://orcid.org/0000-0002-0993-0322
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>
Description
Keywords
compressibility, in situ testing, particle crushing/crushability
Journal Title
Geotechnique Letters
Conference Name
Journal ISSN
2049-825X
2045-2543
2045-2543
Volume Title
8
Publisher
Thomas Telford Ltd.