A more steady and quick application to institute in comparison to X-ray, ground penetrating radar offers no set up time, no radiation emittance, and our equipment arrives on site and ready to go as soon as the project is ready. GPR is commonly used to locate rebar, reinforcing steel, electrical conduits, water lines, post-tension cables and communication lines inside of concrete. GPR also has the capability to detect the presence and extent of voids within the subgrade to determine the structural integrity of the concrete.
Ground Penetrating Radar GPR uses a high frequency radio signal that is transmitted into the ground and reflected signals are returned to the receiver and stored on digital media.
The computer measures the time taken for a pulse to travel to and from the target which indicates its depth and location. In order to find the location and depth of an object, buried subsurface, various types of GPR equipment are used to collect the data.
The type of GPR equipment required is dependent on the depth and size of the target to be located. The radar unit emits and receives reflected signals up to a thousand times per second. These signals are viewed by the field operator on location immediate analysis and are also stored in the system and downloaded to a computer for further data analysis if required.
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To locate objects such as rebar, conduits and post-tension cables imbedded in concrete a high frequency GPR system is used. The data can be collected in simple line scans to determine the thickness of concrete or in a grid format which will produce a map of any targets located in the concrete.
