State equation of mineral sands |
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| Authors: | Tomislav Iv?i? Astrid Gojmerac Iv?i? |
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| Affiliation: | (1) Geotechnical Department, Faculty of Civil Engineering, University of Zagreb, Kačićeva 26, 10000 Zagreb, Croatia;(2) Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000 Zagreb, Croatia |
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| Abstract: | The pressure-volume analogy between compressible fluids and macroscopic sand bodies (Ivsic et al. in Phys A, 277:47–61, 2000) is further extended using quantitative determination of corresponding empirical constants based on adapted van der Waals
state equation. The isothermal constants obtained by interpretation of triaxial sand tests at so called “critical state of
sand” are clearly related to the universal ideal gas properties and molar properties of mineral sands. The corresponding constants
for sand and gases or other volatile liquids have the same order of magnitude. The apparent bulk repulsion/attraction effects
in sand bodies are also discussed. |
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