Publisher's Synopsis
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. Used in the right way, half cell mapping can be an accurate and helpful tool in repair work. However, mistakes can be made in taking and interpreting potentials, leading to an inaccurate diagnosis. Based on the authors' extensive experience, this guide will help technicians and engineers test a structure practically and then interpret the data obtained in order to evaluate the spread of corrosion and its severity.
