Breakage mechanisms of highly porous particles in 1D compression revealed by X-ray tomography

G. Guida; F. Casini; G. M.B. Viggiani; E. Andò; G. Viggiani

doi:10.1680/jgele.18.00035

Breakage mechanisms of highly porous particles in 1D compression revealed by X-ray tomography

G. Guida, F. Casini, G. M.B. Viggiani, E. Andò, G. Viggiani

Research output: Contribution to journal › Article › Academic › peer-review

33 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	155-160
Number of pages	6
Journal	Geotechnique Letters
Volume	8
Issue number	2
DOIs	https://doi.org/10.1680/jgele.18.00035
Publication status	Published - 2018
Externally published	Yes

Keywords

Compressibility
In situ testing
Particle crushing/crushability
n/a OA procedure

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10.1680/jgele.18.00035

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abstract = "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.",

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AU - Casini, F.

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AU - Andò, E.

AU - Viggiani, G.

PY - 2018

Y1 - 2018

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AB - 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.

KW - Compressibility

KW - In situ testing

KW - Particle crushing/crushability

KW - n/a OA procedure

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JO - Geotechnique Letters

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ER -

Breakage mechanisms of highly porous particles in 1D compression revealed by X-ray tomography

Abstract

Keywords

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