Overview
Half cell potential measurement is used to evaluate the potential for corrosion, and subsequently, the durability of concrete reinforcement. It provides a standardised outcome and can deliver fast results.
Benefits
Applications of Half Cell Potential
The test is cost-effective and can be used in any concrete structure where a connection point to the rebar network is possible. The survey is described in the ASTM C876 standard and can be carried out alongside Xradar™ Corrosion Mapping to cross reference corrosion results.
HCP is most suitable for concrete structures such as parking lots, concrete piers, docks and tunnels.
Technology
Half cell potential works by measuring the potential difference between a reference electrode placed on the surface of the concrete and the rebar network within the structure beneath.
Measurements are done in a grid pattern, and subsequent data points are gridded to provide a contour map of the half cell potential gradient values throughout the survey area.
FAQS
Service FAQs
Please review these frequently asked questions about our services. If your question isn’t here, please contact our team.
More FAQs & Resources-
This very much depends on the specifics of the area needing scanning – the size, the depth, the access points, the contents of that slab, and your motivation for scanning in the first place. A scan could take anywhere between 30 minutes and a few hours, depending on the situation. Larger or multi-slab projects may take longer, but we’ll always estimate timelines before work begins.
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Yes – a huge advantage of GPR over X-ray. Our technicians are also trained and equipped for live construction environments, with in-depth knowledge of your projects. We coordinate with your safety officers and comply with all site-specific requirements.
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We provide both scanning and cutting/coring services. Our scanning always comes first to ensure safe drilling; then our coring/cutting teams (who are trained to read Xradar scans) execute using the scan data.
Related Projects
Recent Examples of Our Work
A look at some of our recent projects – from small site scans to complex structural assessments. These projects show the variety of work we do, and how our accuracy keeps your project on track.
Explore Projects by Category
- Building Information Modelling (BIM)
- Concrete Coring
- Concrete Corrosion Mapping
- Concrete Cutting
- Concrete Scanning
- Delamination Detection
- GRAD
- Indoor Utility Locating
- Pre-Design
- Pre-Design Scanning
- Pre-Pour Documentation
- Structural Investigation
- Ultrasound Investigation
- Visual Inspection
- Void and Crack Detection
- Void Detection
- XRSounder
Related Resources
Learn More About Our Approach
Stay informed with Xradar’s collection of technical resources, industry insights, and expert guides.
Explore Our Resources-
The Importance of Detecting Post-Tension Cables Before Drilling
When it comes to concrete construction, few hazards carry as much risk as post-tension (PT) cables. These high-strength steel tendons are designed to reinforce and stabilize slabs, and they are tensioned with tens of thousands of pounds of force. Striking one while drilling or coring is a costly mistake.
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Xradar Concrete Coring Guide to Best Practices
Concrete coring is a critical process in construction and infrastructure projects, allowing precise access to reinforced concrete structures for electrical, plumbing, and mechanical installations.
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