Void Detection

Subsurface voids are gaps within or below concrete slabs and are a great concern for Engineers and property owners.
Voids can be caused by a number of factors, but typically it is related to substandard concrete construction, leaking or broken utilities, poor compaction of the subgrade, or poor drainage of the subgrade.
Utilizing our Xradar™ concrete scanning methods we are able to accurately locate and map the presence of voids in a non-destructive way. Highlighting the exact location and allowing you to take the necessary measures to repair the concrete slab.

Voids are typically caused by:

Substandard concrete construction
Leaking and broken utilities
Poor compaction of the subgrade
Poor drainage of the subgrade

Voids are commonly found:

In large concrete slabs
Below roadways and bridges
Within block wall

Analyzing the Presence of Voids

Our Xradar™ technicians carry out a full scan of the area where voids are suspected and produce a void survey outlining the presence of any detected voids.

Survey results can be presented in a number of ways depending on your needs. In addition to our standard survey, we can also perform a 3D laser scan of the area, allowing you to better reference the area in a virtual walkthrough, or with the survey results overlaid on actual images of the site. This can then be produced and handed off in AutoCAD, allowing your team to make fast and accurate decisions without the need for a site visit.