Abstract
A series of triaxial compression test was conducted to examine characteristics in mechanical behaviour of reconstituted clay. The drained shearing under conditions of constant mean effective stress was applied to samples subjected to isotropic over-consolidation history resulting in the O. C. R. ranging from 0 to 2, and also to samples experienced by drained pre-shearing histories. An undrained test on isotropic normally consolidated sample was also conducted. It is clearly demonstrated that the void ratio was not the unique function of the mean effective stress and principal stress difference. Alternatively, a newly proposed strain parameter; i. e., areal strain on the plane being normal to σ3-axis, is the unique function of these stress parameters.
