Abstract
In order to clarify the influence of pH on consolidation characteristics of cohesive soils, one-dimensional consolidation test with stage loading was performed on five soil samples in which pH values were artificially changed by adding sulfuric acid and sodium hydroxide solutions. The tests showed that the change in void ratio was influenced and not influenced by pH-value depending on the kind of soil sample. The coefficient of consolidation and the coefficient of permeability were changed with pH-value. The coefficient of volume compressibility hardly changed with the pH value but that the compression index did or did not change with the pH-value. The soil structures formed by the consolidation changed with pH-value and the kind of soil sample.
