[caleb-charles]

Iowa State has done some work that sounds related to what you’re after. You might look these papers up for review (http://lib.dr.iastate.edu/do/search/?q=corrosion+concrete&fq=virtual_ancestor_link%3A%22http%3A%2F%2Flib.dr.iastate.edu%2Fdigirep%22):

* Ground penetrating radar applied to rebar corrosion inspection (2012)
* Evaluation of eddy current and magnetic techniques for inspecting rebars in bridge barrier rails (2012)
* Feasibility Study for Detection and Quantification of Corrosion in Bridge Barrier Rails (2013)
* Evaluation of elliptical, glass fiber reinforced polymer, and stainless steel dowel bars in concrete pavements with consideration to subgrade resilient modulus (2008)