Determination of Molecular Diffusion Coefficient of Compacted Cohesive Soil

This Paper describes a convection diffusion model for interpreting contaminant migration in porous materials.Methods to determine the diffusion coefficient for different geotechnical materials and their numerical rage are summarized based on the results of previous laboratory and field tests. A new method of determining molecular diffusion coefficients and the test results of different compacted cohe-sive soil are reported.