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Repetitive Compression Tests on a Carbonate Sand
Existing studies on breakage suggest that the ultimate state is dependent on the particular particle arrangement which results from a given test methodology. Further breakage of the particles is possible when the particle arrangement is disrupted and then reloaded. Thus, there is uncertainty about the concept and utility of an ultimate grading. This paper investigates this issue by presenting data from one-dimensional compression experiments on an initially uniform grading of a carbonate sand. The samples were reconstituted after each cycle of loading, allowing for rearrangement of the particles in order to promote breakage, and tested until there was no change in the grading and compression behaviour (i.e. at the ultimate state for repetitive compression). For samples which were repetitively compressed under high stresses, the grading was similar and the compression curves converged. This represents a limit to the amount of breakage which is possible under repetitive compression and is not necessarily associated with a fractal dimension of 3 nor is it necessarily mono-fractal.
Repetitive Compression Tests on a Carbonate Sand
Existing studies on breakage suggest that the ultimate state is dependent on the particular particle arrangement which results from a given test methodology. Further breakage of the particles is possible when the particle arrangement is disrupted and then reloaded. Thus, there is uncertainty about the concept and utility of an ultimate grading. This paper investigates this issue by presenting data from one-dimensional compression experiments on an initially uniform grading of a carbonate sand. The samples were reconstituted after each cycle of loading, allowing for rearrangement of the particles in order to promote breakage, and tested until there was no change in the grading and compression behaviour (i.e. at the ultimate state for repetitive compression). For samples which were repetitively compressed under high stresses, the grading was similar and the compression curves converged. This represents a limit to the amount of breakage which is possible under repetitive compression and is not necessarily associated with a fractal dimension of 3 nor is it necessarily mono-fractal.
Repetitive Compression Tests on a Carbonate Sand
Springer Ser.Geomech.,Geoengineer.
Chau, Kam-Tim (Herausgeber:in) / Zhao, Jidong (Herausgeber:in) / Miao, Guien (Autor:in) / Airey, David W. (Autor:in)
International Workshop on Bifurcation and Degradation in Geomaterials ; 2014 ; Hong Kong, Hong Kong
Bifurcation and Degradation of Geomaterials in the New Millennium ; Kapitel: 53 ; 369-374
30.12.2014
6 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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