Commitment to Safety • Reliable Results
Responsive Resources • Established Expertise

Penhall Technologies can help you locate rebar, pipes, post and pre tension cables, conduits and many other subsurface hazards that may be hidden in concrete. Our expertly trained analysts can also detect voids within or underneath concrete slabs. As a safety leader in the industry, contractors, engineers, and government agencies have come to trust Penhall first for safe and precise scanning services.

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What are we scanning? Slab on grade, suspended slab, etc.

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Columbia Concrete Scanning Projects that Penhall Technologies has Worked On

Concrete scanning at the I-85 and I-385 project

The state of South Carolina hired Penhall Technologies for their I-85 and I-385 interchange project. They wanted to scan a pier cap support system for an overpass. Engineers on the project wanted to test the concrete for both physical and chemical properties. This testing ensures the concrete is of sufficient quality to support the load of the bridge and passenger vehicles. Our analyst scanned the pier cap using GPR to find a section of concrete that did not contain any structural reinforcement.  The job was completed using the GSSI Structure Scan Mini. The engineers completed the project safely.

Scan elevated concrete slab to find post tension cables and conduit

determine obstructions within concrete slab using GPR scanningPenhall Technologies performed concrete scanning at a location in Columbia. The job consisted of three areas on the 10th floor of a building. Once the analysts arrived on site, the client mentioned that scanning was necessary for his project to avoid hitting any post tension cable or conduit when core drilling. After scanning, the client had the necessary information to proceed with his core drilling job in a safe and accurate manner.

GPR scanning used to locate embedded objects before remodeling

Scan concrete at private residence before remodelingA client hired Penhall Technologies for a remodeling project. Our GPR Analysts scanned and marked three areas for any post-tension cable, rebar, or conduit in a concrete wall. The client wanted scanning done before wall sawing a door opening for his renovation. Always choose to scan first to minimize safety and financial costs in your projects.

Ground penetrating radar used throughout a building to find steel reinforcements within concrete slab

scanning concrete for steel reinforcements within slabA Greenville customer hired Penhall Technologies to scan 12 locations on the first and second floor of a building.  The client wanted to scan prior to core drilling. He wanted to make certain that it was safe to drill into concrete, and that he could avoid any obstructions to secure the integrity of the concrete slab.

Use GPR scanning to locate hazards before coring

Penhall Technologies was called out by an electrical company in Columbia, our analyst scanned 200 4×12” areas using a GSSI Mini XT unit for core drilling in a new hotel, on multiple floors. Penhall Technologies looked for rebar and PT cables in coring locations. We scanned a 2’x2’ area around each core location expanding the scan area as needed to confirm our findings. We clearly marked out rebar in black wax crayon and PT cables and subsurface hazards with red. The analyst outlined the safe areas for coring in blue crayon and then clear coated to preserve markings. The client completed the coring without incident.