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Half-Cell Potential Test.

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Non-Destructive Assessment of Reinforcement Corrosion in Concrete (Corrosion Mapping)

Half-Cell Potential Test is a widely recognized non-destructive electrochemical test used to assess the corrosion activity of steel reinforcement in concrete. It helps engineers detect early signs of corrosion before visible damage occurs — making it one of the most valuable tools for maintenance planning and structural health monitoring. At Global Lab, the Half-Cell Potential Test is carried out using standard copper–copper sulfate (Cu/CuSO₄) electrodes and calibrated voltmeters, in accordance with international testing standards. This ensures accurate measurement, mapping, and interpretation of corrosion potential across concrete structures.

Why HCPTMatters.

Early Detection of Reinforcement Corrosion

It identifies corrosion activity at an early stage — long before visible cracking, spalling, or rust stains appear, allowing timely intervention.

Evaluates Effectiveness of Repair

Post-repair or coating applications can be verified using Half-Cell testing to ensure that the corrosion control system is functioning effectively.

Non-Destructive and Rapid Field Assessment

Provides immediate, in-situ data without damaging concrete surfaces or reinforcement — ideal for routine inspection of bridges, buildings, and marine structures.

Supports Maintenance and Life Extension Decisions

By mapping corrosion risk areas, engineers can prioritize repairs, plan rehabilitation, and extend the life of aging infrastructure efficiently.

NDT TESTING

GL Advantages.

  • Accredited facility: NABL-grade laboratory with traceable calibration and strict QA systems.

  • Standards compliance: Tests performed to ASTM C1202 (Rapid Chloride Permeability Test) and applicable IS/EN methods.

  • Experienced analysts: Concrete technologists who interpret results and recommend mitigation.

  • Fast, reliable reporting: Clear reports with test data, graphs, comparative benchmarks, and practical recommendations.

  • Field + Lab capability: On-site sampling, specimen curing, and post-test consulting.

Global Lab Advantage.

Accredited facility.
Standards compliance.
Experienced analysts.
Fast, reliable reporting.
Field + Lab capability.

Applications

Condition assessment of aging bridges, flyovers, and marine structures.
Evaluation of corrosion risk in coastal or chloride-contaminated environments.
Monitoring reinforced concrete buildings and parking decks for deterioration.
Verification of corrosion protection systems and repair effectiveness.
Service life prediction and durability planning for critical infrastructure.
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Half-cell Potential Test
Half Cell Potential test

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1000+

Concrete Samples Tested Monthly

NABL

Accredited for Concrete Durability & NDT Testing

48–72 Hrs

Guaranteed Report Turnaround

Global Lab provides comprehensive testing for construction and engineering materials, including concrete, cement, steel, aggregates, bitumen, soil, tiles, paver blocks, and other civil and infrastructure materials. We also handle customized tests as per client or project specifications.

Yes. Our team is equipped with mobile testing facilities and field instruments for on-site sampling, inspection, and testing — ensuring quick and reliable results without disrupting your project timelines.