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Oxygen Permeability Test of Concrete.

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Quantifying Concrete’s True Resistance to Gas Penetration

The Oxygen Permeability Test is one of the most reliable indicators of concrete durability because it measures the resistance of hardened concrete to gas ingress under a defined pressure gradient. Unlike water or chloride permeability tests, this method assesses the intrinsic permeability of concrete — a property governed entirely by its internal pore structure and connectivity. At Global Lab, we perform the Oxygen Permeability Test using precision-controlled equipment and standardized protocols to provide accurate, repeatable, and actionable data for engineers, researchers, and durability specialists.

Why OPTCMatters.

Evaluates Intrinsic Permeability

This test directly measures how easily oxygen passes through hardened concrete — providing a true indicator of its pore structure, density, and connectivity. Lower permeability means a refined, tightly packed matrix and higher resistance to environmental deterioration.

Predicts Carbonation Depth

Oxygen movement through concrete governs how quickly carbon dioxide can react with cement compounds. A low oxygen permeability value indicates a slower carbonation rate and greater long-term protection of embedded steel reinforcement.

Assesses Corrosion Risk of Reinforcement

Oxygen is a critical element in the corrosion process of steel within concrete. By limiting oxygen ingress, dense concrete minimizes corrosion potential and ensures extended service life of reinforced structures.

Validates SCM and Mix Performance

Modern concretes with fly ash, slag, or silica fume modify pore structure. The oxygen permeability test verifies how effectively these materials reduce gas permeability — offering scientific validation for performance-based mix designs.

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.

Suitable for Modern Concrete Mixes

Suitable for Modern Concrete Mixes Modern concrete often includes Supplementary Cementitious Materials (SCMs) such as:

Fly Ash
Silica Fume
Ground Granulated Blast-Furnace Slag (GGBS)

These SCMs refine pore structure and reduce permeability.

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Oxygen Permeability Test of Concrete
OPTC Machine

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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.