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In reinforced concrete, chlorides and CO₂ can slowly strip steel of its natural protection. The half-cell potential test helps us spot trouble early by comparing the steel’s electrical state to a reference electrode.
The result?
A clear corrosion likelihood map, per ASTM practice, that guides where to investigate, monitor, or repair.
Practical note: Half-cell potential testing provides valuable insights into the likelihood of reinforcement corrosion in concrete, but results should always be interpreted alongside site conditions, moisture levels, and complementary tests for accurate assessment.