Comparison of Standardized Methods for Determining the Diffusion Coefficient of Chloride in Concrete with Thermodynamic Model of Migration - Data

It is a dataset for the paper that analyzes the values of the diffusion coefficient in twenty concrete mixtures. Values of the diffusion coefficient are determined based on the thermodynamic migration model. This method, which allows determining the value of the diffusion coefficient after short migration studies of chloride ion penetration into concrete, has already been described in previous works by one of the authors. Additionally, in some, concretes, the values of the diffusion coefficient were determined using selected code methods, according to: ASTM 1202, NT BUILD 443, NT BUILD 492, ASTM 1556. Unfortunately, when using standard methods, the values of the diffusion coefficients differ from each other. Diffusion tests under natural diffusion conditions were carried out in each concrete to verify the value of the determined diffusion coefficient obtained with the migration tests.