What Is the Half-Cell Potential Test?
Sarah De Carufel
June 20, 2023
Corrosion is a natural process that occurs when a structure is exposed to elements like CO2 or chloride, which can penetrate the concrete all the…
Half-Cell Potential Test
- The half-cell potential test is a non-destructive technique used to measure the corrosion activity in reinforced concrete structures. It involves using a half-cell electrode, which is a reference electrode that is placed on the surface of the concrete and connected to a voltmeter. The half-cell electrode measures the potential difference between the concrete surface and a reference electrode. The potential difference is an indicator of the corrosion activity in the concrete. The half-cell potential test is a qualitative rather than a quantitative test. It provides an indication of the relative level of corrosion activity in different areas of the structure but does not provide a precise measurement of the corrosion rate. The half-cell potential test is a useful tool for assessing the corrosion activity in reinforced concrete structures and can be used to guide maintenance and repair efforts to ensure the long-term durability of the structure.