Ground Penetrating Radar System, Inc was contacted by Brasfield & Gorrie about mapping rebar and post-tensioning cable in a structural concrete slab prior to setting anchor bolts to hold a large piece of art. There were several conditions that Ground Penetrating Radar System had to account for. First, the Ground Penetrating Radar survey was to be completed on the ceiling, meaning all scanning was done from the underside of the slab. We are often asked about our capabilities of running ground penetrating radar on ceilings and vertical structures, and fortunately we are almost always able to accommodate.
Because our 1500 MHz Ground Penetrating Radar antenna is attached to a small hand cart we are easily able to flip the cart and scan concrete ceilings. It is a very versatile piece of equipment. Secondly, the technician and the equipment had to fit through a 3’x3’ square cut into the drop drywall ceiling. Because of the portability of our GSSI equipment we were also able to accommodate this need. Finally, the work was being performed in a down town Tampa high rise building and had to be completed on a Saturday. Again, with an emphasis on customer service this was no issue for the Ground Penetrating Radar System technician.
The work was completed with successfully. We plotted the rebar and post tensioning grid directly on the bottom side of the concrete. At that point Brasfield & Gorrie could easily pick a “square” to set their anchors.
GPRS Inc. continues to strive to meet the ever changing needs of our customers and their jobsites. This is a recent example of how ground penetrating radar and Ground Penetrating Radar were able to step to the plate and hit a home run.
Concrete scanning for the layout of reinforcing steel and embedded electrical conduits prior to core drilling and saw cutting is one of the most common applications we perform for our customers. Chris Moore is the Ground Penetrating Radar director of Florida operations. He can be reached at (727) 420-3292 or by e-mail at chris.moore@gp-radar.com. We do perform Ground Penetrating Radar surveys anywhere in Florida and nationwide.
