A: Ground penetrating radar is a fast, non-destructive method of using radar pulses to detect objects in the ground such as underground utilities, UST’s, sinkholes and voids. It can also be used to locate rebar, post-tension cables and conduits in concrete slabs, walls and ceilings.

A: The radar works by launching pulses of electromagnetic energy of a certain bandwidth into the ground under investigation. These pulses propagate through the ground and are reflected by sub-surface targets or at interfaces between different media. The radar measures the time taken for a pulse to travel to and from the target which indicates its depth and location. The transit time of the pulses depends on the dielectric constant properties of the material.

A: No, many people refer to concrete structural scanning as concrete x-ray, but this is incorrect. Concrete structural scanning and concrete x-ray are very different technologies. X-ray technology poses serious health risks, requires stopping work in the area, and is not as fast, accurate, or efficient as concrete structural scanning.