Figure 7. Comparison of consolidation response at post-yield stresses for the undisturbed sample and for the sample material after disaggregation. The disaggregated equivalent displays a much higher A_c , which is approximately constant over the measured stress range. A constant stress hold at 1.6 MPa shows secondary consolidation (creep), followed by a phase of delayed consolidation and low apparent A_c during renewed consolidation. The multiple unload-reload test on the undisturbed sample shows a much lower A_c, which is interpreted as resulting from delayed consolidation. The slopes, / log _v', of the unload-reload cycles show even lower compressibilities and reflect an approximately elastic response.