A unite mathematical model of rheological and electro-chemical properties of saturated clays is proposed. the foundation of the model is the unification of filtration's consolidation theory, the theory of stability of lyophobic colloids and the experimental data on electro-chemical properties of clays and clayey suspensions. conception of disjoining pressure as a surplus in comparison with hydraulic plays the important role in clays properties description. this pressure is caused by surface capacities and exists in water films between clay particles. We obtained the exact solution about wringing the water out of clay layer. the solution that we received not demands to introduce a concept of limit shear stress for clays. We investigate the peculiarities of the model, which are important for explaining some character features of electro-and mass-transfer processes in clays with coupling of rheological behavior of clays. it is shown that solutions which we've received are in good harmony with results of experiments.

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