GPRS Locates Rebar at Carnegie Mellon University
Ground Penetrating Radar Systems was recently called out to a project by a general contractor to locate rebar in a column and elevated slab for core drilling. This project is located in the city of Pittsburgh, PA. By using GPR location, spacing and depth of reinforcement was found and recorded on site for contractor. Painters tape was used for a clean look on a finished surface so it could be removed cleanly after work is complete. GPR is an accurate and effective way of locating reinforcement and conduits in slab on grade or elevated slabs. Why drill or cut not knowing where any reinforcement and conduit are when GPRS can locate and mark all reinforcement and conduits with location, spacing and depth indications for your safety!
For more information on how Ground Penetrating Radar Systems, LLC. can help you on your next project, please contact Brian Allison at (412) 292-3266 or by email at brian.allison@gprsinc.com. We also have the capabilities of locating conduits, rebar, and post tension cables in a concrete slab. Public and private utility locating is an additional service we also provide.
Equipment Used:
Ground Penetrating Radar (GPR)
1600 MHz GPR Antenna
The antenna is approximately 6”x9” and rolls over the surface. The data is displayed on a screen during the scanning and marked on the surface in real time. GPR works by sending pulses of energy into a material and recording the strength and the time required for the return of the reflected signal. The total depth achieved can be as much as 18” or more with this antenna but can vary widely depending on the conductivity of the materials and other factors such as the spacing of the reinforcing. No harmful radiation is emitted and the work can be performed at any time with people in close proximity. For more information, please visit: Link
2000 MHz GPR Antenna
The antenna is only approximately 4”x3.5” and rolls over the surface. The data is displayed on a screen during the scanning and marked on the surface in real time. GPR works by sending pulses of energy into a material and recording the strength and the time required for the return of the reflected signal. The total depth achieved can be as much as 18” or more with this antenna but can vary widely depending on the conductivity of the materials and other factors such as the spacing of the reinforcing. No harmful radiation is emitted and the work can be performed at any time with people in close proximity. For more information, please visit: Link