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

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Miami Concrete Scanning Projects that Penhall Worked On

Avoid striking post tension cables with GPR

Miami concrete scanning analyst Recently, a contractor hired Penhall Technologies for GPR services. He was installing a set of stairs for a Miami high-rise. They needed to anchor a metal frame for a stairway on a top floor penthouse apartment in multiple different areas.  The slab contained many post-tension cables, so GPR was necessary to ensure the job could be completed safely and without striking any of these cables. The analyst used a 2700 MHz GPR unit to scan the necessary areas. After the scanning, the scan markings aided the contractor in finding safe places he could anchor the stairs, away from any post-tension cables.

Penhall locates conduit in outlet store

concrete scanning in Miami Recently, Penhall Technologies was contracted to scan a concrete slab in an outlet store so that a new display could be safely installed.  The analyst scanned the floor using a 2700 MHz GPR antenna. He identified a large bundle of conduit running through the floor, which provided power to five different outlets.  Thankfully, the contractor made the safe choice to scan before cutting and avoided what would have been a very costly repair.  In this case, the project was able to continue as soon as the survey was completed, and the hazards had been identified.

Scan to prevent hitting post tension cables

locate underground cable in Miami Recently, a development company contracted Penhall Technologies to scan multiple balconies in a large apartment complex.  The development company was refitting balconies to install new railings and was concerned about drilling into post tension cables.  Using a 2700 MHz GPR unit, Penhall Technologies spent multiple days on site, marking out the location of the PT cables. The client completed the replacement of the railings in a safe and timely manner.

Penhall Technologies uses GPR to scan before trenching concrete

Penhall Technologies of Fort Lauderdale was recently hired to scan a slab on grade at a mall. The contractor needed to trench the concrete in several spots, in order to install new displays and plumbing. The analyst used both an electromagnetic detection utility wand and a 2700 MHz GPR antenna to look for conduits in and below the concrete slab. Penhall Technologies identified a large bundle of live electrical lines that ran directly through the proposed trench area for the new electrical run. The contractor relocated the trench so that it would not interfere with the conduits.  Without conducting a GPR survey, it is likely that hitting the conduits would have caused power outages within neighboring outlet stores, costing the contractor greatly.

GPR scan to find post tension cables before drilling

GPR scan to mark PT cables before drillingPenhall Technologies was contacted to scan a rooftop at a condominium building on Collins Avenue in Miami Beach. The contractor was installing a new AC unit and need to drill into the concrete roof slab. The building engineers were concerned about hitting post tension cables while drilling. We scanned the perimeter to locate the post tension cables. By marking the location of the post tension cables, the contractor was able to drill safely into the slab without damaging the cables. Ground penetrating radar poses no health hazards typically associated with x-ray. GPR can locate reinforcing steel, conduits and voids in the concrete. It is useful to use GPR to locate underground utilities and storage tanks.

Identify all obstructions to cutting on a concrete slab on grade

locate conduit and utilities on concrete slab on gradeOur GPR Scanning Expert used ground penetrating radar and a utility wand to scan 5 areas prior to the customer saw cutting to renovate an existing retail space in Miami. GPR is an excellent method to locate conduits or utilities on a slab on grade project. GPR only needs access to one side of the slab while x-ray requires access to both side of the concrete. The analyst marked any anomalies with spray paint and communicated to the customer. Ground penetrating radar limits damage to conduits and utilities when drilling or cutting into concrete.

GPR scanning is a safe, non-destructive way to locate hazards before core drilling

concrete scanning using gpr before core drillingPenhall Technologies completed a concrete scanning project in Miami, Florida. The building required the use of non-destructive testing prior to core drilling. Our expert GPR analyst was able to scan the concrete slab using ground penetrating radar. The analyst marked the rebar in the slab with black marker. He also detected a conduit running in the slab and marked in red marker. We completed the concrete scanning  in real time and allows the customer to drill without any delays. The gpr service poses no health hazards and delivers no radiation making it a safer alternative than traditional x-ray.

Ground Penetrating Radar used to locate reinforcing steel and conduit within a concrete slab

gpr scanning used to locate reinforcing steel and conduitPenhall Technologies completed a concrete scanning project in Downtown Miami. We used ground penetrating radar to locate reinforcing steel and conduits in the slab. By using gpr, the customer could quickly and accurately locate anomalies in the slab and determine the safest area to complete the drilling. GPR scanning is the preferred method when the analyst only has access to one side of the concrete. Penhall Technologies can also use gpr to locate underground private utilities.