To validate measurement results obtained using a custom-built, high-stress permeameter (HSP), consolidation experiments were carried out on kaolin ("Peerless 2" from Vanderbilt Minerals) using both the HSP and industry standard fixed-ring oedometers. From these consolidation tests, the compression index, Cc, and recompression index, Cr, were obtained. Additionally, permeability measurements were made during the consolidation tests to obtain the porosity-dependent permeability for kaolin. In the HSP, ...