E3S Web Conf.
Volume 92, 20197th International Symposium on Deformation Characteristics of Geomaterials (IS-Glasgow 2019)
|Number of page(s)||6|
|Section||Laboratory Experimental Techniques: Particle Scale and Fabric|
|Published online||25 June 2019|
Sand grains versus tiny glass granules - comparative study on stress-deformation characteristics
Polish Academy of Sciences, Institute of Hydro-Engineering, Gdańsk, Poland
2 Koszalin University of Technology, Civil Engineering Department, Koszalin, Poland
* Corresponding author: firstname.lastname@example.org
Glass granules and grains of crushed glass usually replace sand if photo-elastic observation of load-transmitting ‘force chains’ is planned. Still an open question exists however, how well glass granules can represent real sand grains. This paper in its first part compares simple uniaxial crushing tests on glass grains (both granules and crushed glass) and on coarse sand grains (micro-scale). Some basic geometrical characteristics of glass and sand grains are discussed, then the measurement techniques are presented and the results of crushing tests demonstrated. The second part of the paper contains the results of ‘macro-scale’ loading tests on big granular samples, made of ~106 glass or sand grains. The deformation characteristics of these samples differ significantly.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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