Calculating Cement Paste and Mortar Diffusivity from Conductivity Measurements: Preliminary Results of a New Method

摘要

A method to determine the chloride diffusivity of concrete is being developed which is both expeditious and accurate. The method is based upon the Nernst-Einstein equation relating conductivity and diffusivity. Results from a single measurement can be used to calculate the diffusivity for any specified ion, given the 'free' diffusivity of that ion. The experimental procedure, along with preliminary results, are reported.