The paper presents a conceptual micromechanical model for 1-D compression behaviour of non-active clays in saturated state. An experimental investigation was carried out on kaolin clay samples saturated with fluids of different pH and dielectric permittivity. The effect of pore fluid characteristics on one-dimensional compressibility behaviour of kaolin was investigated. A three dimensional Discrete Element Method (DEM) was implemented in order to simulate the response of saturated kaolin observed during the experiments. A complex contact model was introduced, considering both the mechanical and physico-chemical microscopic interactions between clay particles. A simple analysis with spherical particles only was performed as a preliminary step in the DEM study in the elastic regime.
|Number of pages||4|
|Journal||EPJ Web of Conferences|
|Publication status||Published - 30 Jun 2017|
|Event||8th International Conference on Micromechanics on Granular Media, Powders & Grains 2017 - Montpellier, France|
Duration: 3 Jul 2017 → 7 Jul 2017
Conference number: 8