Half cell mapping has for at least fifteen years been the most popular non-destructive methods of investigating the corrosion state of embedded reinforcement. However, although this method is becoming widely used in civil engineering for determining the corrosion state of the steel reinforcement in concrete, there has been very little consideration of the principles and potential measurement. This practical guide explains the principles of potential measurement, shows how these should be undertaken and, most critically, provide ways of interpreting the data.

The corrosion of reinforcing steel in concrete is a major problem facing civil engineers and surveyors throughout the world today. There will always be a need to build stuctures in corrosive environments and it is therefore essential to address the problems that result. Corrosion of Steel in Concrete provides information on corrosion of steel in at