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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Concrete scanning provides 2D profiles and 3D volumes to determine the integrity of walls

concrete scanning to determine the integrity of building wallsA local contracting company hired Penhall Technologies to scan and map a concrete wall inside a hospital in Charleston, SC. The hiring company was interested in knowing how much structural rebar was in the concrete wall and in what direction the rebar was going. The contracting company is interested in building an addition to the one story building and the project engineer wanted to know if the wall was originally engineered to support the added load of a second story. Penhall Technologies scanned the wall with the Structure Scan Mini HR from Geophysical Survey Systems Inc. (GSSI) collecting both 2D profiles as well as two 3D volumes. The 2D profiles were used to map the rebar at the surface while the 3D volumes were used to map out the rebar to deliver to the structural engineer. Penhall Technologies was able to exceed the expectations of the client by not only locating the rebar, but marking them out on the surface in real time and providing limited technical support viewing the delivered 3D volume. The project was completed in a safe and non-destructive manner.

Determine if there are any obstructions with concrete using GPR scanning

locating obstruction in concrete using GPR scanning This project called for Penhall to travel to Moncks Corner, SC. Once there, we were instructed to perform concrete scanning for obstructions in several areas before drilling for 12” cores on the 8” slab.

Locate and mark rebar and post tension cable to ensure safety when core drilling

locate and mark rebar and post tension cable in concrete slabPenhall was contacted to perform concrete scanning on 150 separate areas at a central location in Charleston, SC. We used ground penetrating radar to locate rebar in preparation for the core drilling on the 5” thick slab.