Surface resistivity profiles as a function of elevation are being measured on recent and
mature marine reinforced concrete substructures. In a later phase of the project the surface
resistivity values measured will be correlated with chloride diffusion coefficients measured from
the same structures. Previous lab work suggests that a good correlation exists on saturated
concrete between these two parameters. The objective of this study is to assess whether a
similar correlation can be obtained from field surface resistivity readings. Preliminary results
suggest that a conditioning method needs to be applied on-site to approximate water
saturation conditions at the elevations of interest.
Keywords: surface resistivity, concrete resistivity, finite element method, modeling