Yes it can! Because GPR only needs access to one side of a concrete slab or structure to scan the material for anomalies, it can evaluate slab-on-grade.

While the GPR itself can only identify anomalies, our expertly trained GPR technicians can interpret the provided data and let you know what it is the GPR has found and where it's located. Our field markings and reports then help you to understand what we've located so you can make an educated decision on where to drill, core or cut.

Concrete scanning in the average slab is very accurate. In general, the resolution and accuracy of the radar diminishes as the target depth increases. For concrete slabs up to 12” we are able to locate targets to within about 1 cm horizontally.

Our work flow is designed to take into account both the radar accuracy and the type of target. First, we "calibrate” the radar (hyperbola matching) to increase radar accuracy for each site. We also use safety margins for our markings that take into account the critical nature of the target. ie. Wider for post tension cables and narrower for rebar.

No. GPR scanners use radio waves, and typically produce a smaller power output than most cell phones. It is also non-destructive.

Our rule of thumb for scanning time for clearing for core drilling is 30 minutes for a 3’x3’ area. This is based on scanning from one side only and will vary depending on the quantity and types of targets found during the scan.