
%0 Journal Article
%A Quirk, JP 
%A Pashley, RM 
%T Structural component of the swelling pressure of calcium clays
%J Soil Research
%D 1991/04/01
%V 29
%N 2
%P 209-214
%K 
%R https://doi.org/10.1071/SR9910209
%U https://www.publish.csiro.au/paper/SR9910209 
%X The presence of a major repulsive ion-induced structural force or disjoining pressure between Ca-clay particles is demonstrated. This arises from the perturbation of the normal structure for water to distances of about 50 A. This force operates in slit-shaped pores between clay particles and is opposed principally by attractive ion-ion correlation forces in regions of clay particle overlap. 
