Introducing interacting diffuse layers in TLM calculations: a reappraisal of the influence of the pore size on the swelling pressure and the osmotic efficiency of compacted bentonites.
作者： J. Gonçalvès , P. Rousseau-Gueutin , A. Revil
DOI: 10.1016/J.JCIS.2007.07.023
关键词: Thermodynamics 、 Swelling 、 Porosity 、 Truncation 、 Taylor series 、 Counterion 、 Mineralogy 、 Layer (electronics) 、 Partition (number theory) 、 Colloid 、 Chemistry
摘要: The truncation of the Gouy-Chapman diffuse part in compacted clay-rocks and bentonite is introduced into electrical triple-layer model (TLM) recently developed by P. Leroy A. Revil [J. Colloid Interface Sci. 270 (2004) 371]. new used to explain dependence osmotic efficiency swelling pressure as functions mean pore size medium, determined from porosity specific surface. layer introduces a variable system equations be solved, potential at midplane between adjacent charged surfaces. This evaluated through Taylor expansion potential. present able capture variation with size. partition counterions Stern function calculated TLM also shows good consistency model. implies that more than 90% are located layer.
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