See inside without drilling
Locate rebar, ducts and voids before you cut or core.
Non-Destructive Testing
Ground-Penetrating Radar (GPR)
Radar imaging of reinforcement, voids and buried features in concrete and ground.
Overview
GPR sends electromagnetic pulses into concrete or soil and records reflections from interfaces. It is used to locate reinforcement, voids, utilities and layer boundaries without excavation.
GPR sends short radar pulses into concrete or ground and records the reflections. Changes in material show up as reflections, revealing reinforcement, voids, utilities and layer boundaries without digging or drilling.
- Reinforcement and cover location
- Void and anomaly detection
- Buried utility and layer mapping
- No excavation required
Key Benefits
Fast coverage
Large areas are scanned quickly along survey lines.
Avoids strikes
Finding hidden utilities and reinforcement reduces the risk of damage.
Works on many materials
Concrete, pavement and soil.
Where It Is Used
- Rebar and cover mapping in slabs and decks
- Void and cavity detection under pavements
- Buried utility location
- Pavement layer thickness
How We Work
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1
Define the survey area
Mark the grid or lines to be scanned.
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2
Select the antenna
Choose frequency to balance depth and resolution.
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3
Scan
Move the antenna along the survey lines, recording data continuously.
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4
Process and interpret
Produce sections and plans marking features and depths.
What You Receive
- Radar sections and plan maps
- Feature depth and position schedule
- Marked-up drawings
- Interpretation report
Frequently Asked Questions
How deep can GPR see?
Depth depends on antenna frequency and material: centimetres for high-frequency concrete scans, metres in favourable soils.
Does GPR work in wet clay?
Wet, conductive soils absorb the signal and reduce penetration.
Have an infrastructure testing or monitoring requirement?
Tell us about your project — our engineering team will follow up on scope, instrumentation and approach.