Half Cell Potential (Corrosion Testing)

Half-cell potential testing is an electrochemical method used to assess the probability of corrosion in steel reinforcement embedded within concrete structures. The test provides an indication of areas where corrosion activity may be occurring.

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The Process

Measurements are taken across a defined grid on the concrete surface using a reference electrode connected to the reinforcement. Electrical potential readings are recorded and mapped to highlight areas where corrosion risk is higher.

The Reason

Reinforcement corrosion is a major cause of deterioration in reinforced concrete structures. Identifying areas of active corrosion allows engineers to investigate further and plan appropriate remedial action.

The Application

Half-cell potential testing is commonly used during structural durability assessments and investigations into reinforcement corrosion.

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