LAUSR

Abstract An overview of recent studies in which the transport of radionuclides in porous materials has been recently modeled is provided. The focus is on the modeling based on balance equations whose results could be used in nuclear waste management for the prediction of long-term behavior and assessment of safety standards. Values of key transport parameters, especially diffusion coefficients, are given and experimental techniques from which these can be determined are outlined. Critical remarks on the modeling and difficulties in the comparison of parameters from various studies are pointed out in the conclusion. Describing a rather wide picture ranging from parameters to experiments and to numerical models, the review might provide a contribution to the understanding and a stimulation for the improvement in the modeling of radionuclide transport.