Packing and Compressibility of Binary Micromechanical (Granular) Systems
DOI:
https://doi.org/10.15407/ujpe70.8.543Keywords:
granular materials, mixtures, compaction, compressibilityAbstract
Using the Carnahan–Starling–Mansoori hard-sphere conglomeration models and the Kirkwood– Buff statistical theory, the effect of compaction (packing) on the compressibility of a binary granular mixture has been analyzed. The theoretical results are compared with the experimental ones obtained in alternative studies of the systems whose internal structure corresponds to the construction characteristics of the model. The possibility of the maximum packing effect at special dispersion and mole fraction values of the components has been shown. The existence of the limit and intermediate states of the mixture with a predominant concentration of one of the components and the possibility of the most adequate description of the system properties in such states using one of the above-mentioned approaches have been demonstrated. The interval of values for the component volume fractions has been determined, where both approaches well describe the data of corresponding experiments.
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