Why Digital Concrete X-Ray Is Superior to GPR Scanning

Digital concrete xray technology produces true photographic images of what lies inside concrete — not signals, not estimates. With Nova’s digital radiography system, our technicians can instantly identify:

Conduits — and whether they contain live wires or are empty
Post-tension cables — clearly visible when crossed by the beam
Rebar — including diameter, spacing, and layering
Voids, anomalies, and embedded elements others may miss

📊 GPR Has Critical Limitations

While Ground Penetrating Radar is commonly used, it cannot match the clarity or certainty provided by digital xraying.

Feature/Capability

Digital Xray

GPR Scanning

Image Output

High-resolution xray images

Signal reflections

Wires vs. Empty Conduits

✅ Clearly distinguishable

❌ Not possible

Post-Tension Cables

✅ Clearly visible

⚠️ Signal distortion possible

Rebar Size & Layering

✅ Visible and measurable

❌ Approximated only

Material Identification

✅ Yes – by density

❌ No

Depth Estimation

❌ Not available

✅ Available (estimated)

Interpretation Needed

Minimal – real images

High – experience-dependent

✅ Safety and Efficiency Built In

Low radiation output, fast exposure times
Minimal site disruption – smaller or no exclusion zones
Operates in tight spaces, including beneath occupied floors
Superior performance on metal mesh, wet concrete, or complex slab builds — where GPR often fails