Volume 3, Issue 2 (February 2006)
A Numerical Method for the Recovery of Local Potentials and Currents Due to Corrosion of Steel in Concrete
Diagnostic electrical measurements intended to quantify the rate of corrosion often prove difficult to interpret due to the distribution of currents within the concrete electrolyte. In this paper an inverse method to recover estimates of local values for the potential and current density at the concrete-steel interface from measurements at the exterior surface is presented. An idealized model system has been investigated in a series of numerical experiments. Several example problems in corrosion diagnostics have been analyzed and the results compared favorably to direct solutions.