Particle Breakage of Gypsum Granular Materials in Triaxial Compression Tests

Abstract:

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In order to study the particle breakage of granular materials during compression, a series of triaxial compression tests were conducted for gypsum granular materials. Meanwhile, the primary study on evolution laws of particle breakage was carried out. It was found that the deviator stress increases with the increase in confining pressures for gypsum granular materials at the same axial strain. The degree of particle breakage of gypsum granular materials increases with the increase in confining pressures. The relative breakage index can be adopted to denote the particle breakage degree and increases with the increase in confining pressures. When the initial grain size distribution of gypsum granular materials is fractal, the grain size distribution complies with fractal during compression under different confining pressures. The fractal dimension increases with the increase in confining pressures and can be adopted as a parameter for measuring the degree of particle breakage.

Info:

Periodical:

Advanced Materials Research (Volumes 374-377)

Edited by:

Hui Li, Yan Feng Liu, Ming Guo, Rui Zhang and Jing Du

Pages:

2261-2264

DOI:

10.4028/www.scientific.net/AMR.374-377.2261

Citation:

J. W. Zhang et al., "Particle Breakage of Gypsum Granular Materials in Triaxial Compression Tests", Advanced Materials Research, Vols. 374-377, pp. 2261-2264, 2012

Online since:

October 2011

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Price:

$35.00

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