Ground Penetrating Radar (GPR)
See inside the slab before you cut, core, or drill — and never hit a post-tension cable again.
What We Do
Ground penetrating radar (GPR) is a non-destructive scanning method that uses radar pulses to locate rebar, post-tension cables, conduits, and voids inside concrete before anyone cuts, cores, or drills. Advanced Structural Solutions provides GPR concrete scanning for restoration, renovation, and structural investigation across South Florida.
Cutting or coring blind is how projects go wrong. Nick a post-tension cable and you can injure a worker, damage the structure, and stall the job for weeks. GPR shows what’s inside the concrete first — the rebar layout, the cables, the conduits, the thickness — so drilling and cutting happen with confidence instead of luck.
Our team scans the slab, marks what’s below the surface on the spot, and delivers a clear report for the structural engineer. We use GPR both to protect live work and to gather the slab data — rebar spacing, concrete cover, and thickness — that informs restoration and structural analysis.
How We Deliver Results
Scope & Setup
We define the scan areas and the level of detail needed, whether the goal is safe drilling or structural data collection.
On-Site Scanning
We scan the concrete with GPR, reading the reflected signals to locate reinforcement, post-tension cables, conduits, and voids.
Marking & Interpretation
We mark findings directly on the surface so crews know exactly where it’s safe to cut, core, or drill.
Reporting
We deliver a report with locations, depths, and slab data for the engineer of record when the scan supports design or restoration.
Frequently Asked Questions
What is ground penetrating radar used for in concrete?
GPR locates what's embedded in a concrete slab — rebar, post-tension cables, electrical conduits, and voids — without any damage to the structure. It's used before cutting, coring, or drilling, and to gather slab data for structural engineering.
Why scan concrete before cutting or coring?
To avoid hitting a post-tension cable or critical rebar. Striking a live post-tension cable can injure workers, weaken the slab, and require expensive structural repair. A quick GPR scan eliminates that risk.
How deep can GPR scan into concrete?
GPR can typically image roughly 18 to 24 inches into a concrete slab or structure — deep enough for the reinforcement, cables, and conduits found in most building elements.
Can GPR find post-tension cables and voids?
Yes. Post-tension cables run in bundles and produce a distinct, wider signal that a trained operator can distinguish from ordinary rebar. GPR also reveals voids and delamination inside the concrete.
Is GPR non-destructive?
Completely. GPR sends radar pulses into the concrete and reads the reflections — nothing is drilled or removed to perform the scan, and buildings stay occupied and operational.
Do I need GPR for a concrete restoration project?
Often, yes. GPR maps reinforcement and confirms slab conditions before repairs, and it protects the work when crews cut into structural concrete. It’s frequently paired with facade restoration and structural assessments.
Explore More Solutions
Let's Talk About Your Project
Whether it's a 40-year recertification, concrete restoration, or a new MEP design — we're ready.