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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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I can confirm this is a private locate. For all public locates please contact 811.

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

What are we scanning for? Ex. rebar, tension cables, conduits, etc.

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What is the surface that we are performing the locate on? Ex. Ground/Dirt, asphalt, concrete, indoor/outdoor, etc.

What are we locating? Water, gas, electrical, sewer, etc.

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Austin Concrete Scanning Projects that Penhall Worked On

Concrete scanning on a suspended slab

We recently scanned a suspended slab to locate post tension cables and rebar. The contractor wanted to know the location of these hazards to install a metal plate to weld wall supports for a block wall. Our analyst scanned 10 2ft by 2ft areas using the GSSI HR Mini to locate the hazards in the slab. After the scan, the analyst provided all the information needed to complete the project in a safe and timely manner.

Locate post tension cables before coring holes

We scanned multiple locations on a suspended slab for a construction company. The contractor wanted us to locate rebar and post tension cables before coring holes after sleeves were missed during pre-construction. Our analyst scanned four 3ft by 3ft areas with the GSSI HR Mini. She located multiple hazards that were exactly where the core was intended to be drilled. By scanning first, the client missed hitting hazards and jeopardizing project budgets.

Ground penetrating radar used to minimize hazards before drilling

A Penhall Technologies’ analyst was recently called out to a residence in Hutto, Texas, where some immediate scanning was needed. Previously, this particular residence had a gun safe company present at their home to install a new gun safe. When the company arrived, they had notified the residence that they would be drilling into the garage concrete slab to anchor it in place. They asked if they knew the slab contained post tension cables, and if they had scanned the area. Unprepared, they had to find a private utility locator quickly. Making the installers wait presented a financial cost for the client.  The analyst was able to arrive within the hour. The customers were completely satisfied with the analyst. He ensured that the pattern of holes would not interfere with any observed and/or marked hazards.

Ground penetrating radar used to scan a rooftop for post tension cables

Scan concrete slab for rebart before drilling holesIn Austin, TX, three areas of a roof were in need of some concrete scanning. We used ground penetrating radar to scan a 13″ slab in order to drill 4″ diameter cores safely.