This book brings together a total of 48 contributions (including 5 keynote papers) which were presented at the 2nd International Workshop on the Application of X-ray CT for Geomaterials (GeoX 2006) held in Aussois, France, on 4-7 October, 2006.

The contributions cover a wide range of topics, from fundamental characterization of material behavior to applications in geotechnical and geoenvironmental engineering. Recent advances of X-ray technology, hardware and software are also discussed. As such, this will be valuable reading for anyone interested in the application of X-ray CT to geomaterials from both fundamental and applied perspectives.

Jacques Desrues is Research Professor in Laboratoire 3S at CNRS, Grenoble, France. He has been a member of CoNRS (the French Evaluation Committee of Scientific Research) since 2000 and his research interests include Deformation and Failure in Geomaterials, Experiments and Modeling.

Gioacchino Viggiani is Full Professor of Civil Engineering at Universite Joseph Fourier, Grenoble, France. His Research interests include Strain Localization and Constitutive Modeling.

Pierre Besuelle has been research Associate Professor at CNRS, Grenoble, France since 2001. His research interests include Homogenous and Localized Deformation in Rocks, Advanced Testing and Models.