GPR Concrete Scanning Project on Rooftop

GPR Scanning Services, LLC completed a gpr concrete scanning project on a rooftop in downtown Fort Lauderdale, Florida. The customer was hired by the building management team to install new fall arrest anchors on the rooftop of the condo building. The scope of work included scanning 8 wall locations and 2 locations on the roof deck. In order to scan the roof deck, the customer needed to cut away the roofing membrane and the 4″-6″ of insulating foam underneath. By removing the membrane and foam, the technician was able to gain access to the concrete slab. The technician used a 1600MHz ground penetrating radar unit to scan the locations. The gpr unit is able to penetrate the concrete to locate conduits, post tension cables, and rebar. Ground penetrating radar uses electromagnetic pulses or waves to locate embedded objects in the concrete. The pulses are sent from the antenna to a computer unit and displayed in real time, on the screen for interpretation by the technician. A typical scan area of 2’x 2′ can be completed in approximately 5-15 minutes which includes setup, scanning of the area, and marking the results directly on the surface. As each location was scanned, the customer followed right behind to drill the bolts to secure the anchors in place. A benefit of gpr scanning is access is required only from one side of the concrete slab. The technology allows scanning on the concrete floor or concrete ceiling. Scanning of the ceiling enables customers to drill into the bottom of the slab safely. Damage to pt cables can injure workers and are costly to repair. GPR Scanning Services, LLC can also scan to determine spacing and depth of reinforcing steel along with possible voids in or below the concrete.

Please call us today to discuss your concrete scanning needs. We offer low hourly pricing with night and weekend scheduling available.