ABSTRACT
The simplest and cheapest form of corrosion monitoring is to look at the concrete and identify any cracking on the surface of the structure. Despite some techniques in a laboratory being able to give a rate of corrosion, getting a reliable result in the field is hoping for far too much, despite the huge commercial desire to accurately record this kinetic process. The chloride level measured is then directly correlated with a corrosion risk, i.e. at a certain percentage level corrosion will be initiated and will have a significant corrosion rate. In laboratory testing, differences could be measured in the heat distribution between samples with differing levels of corrosion product. Electrochemical Impedance Spectroscopy is primarily used in the corrosion industry for the accelerated evaluation of protective coatings on steel where it is evaluating changes at the steel to coating interface.
