|Type of Testing
|Regularly Tested Product Types
|Electrochemical impedance measurements
|This test is usually used to provide a relative estimate of corrosion rates of rebar in concrete. A small sample of rebar surrounded by concrete is placed in a corrosive solution. Electrochemical impedance is then measured, using the rebar as an electrode. The impedance measurement can show how effective the concrete admixture is at protecting the rebar in the sample.