GCS offers Ground Penetrating Radar and Dynamic Cone Penetrometer testing in addition to our grouting services. We use Ground Penetrating Radar to create the most accurate image possible of the area beneath your valuable structures. We use the Dynamic Cone Penetrometer to measure the strength of subgrade soils and to identify weak layers of soil within a soil mass. We often run into situations where these testing methods are required to properly construct a soil grouting repair plan.
On one particular project, a CMP stormwater pipe failed, likely due to age, causing soils outside the loading dock to erode. The initial sign there was a problem was settling concrete at the surface. Sometimes that can be due simply to poor compaction. Without proper testing, the real underlying issues wouldn’t have been diagnosed and resolved.
We ended up finding areas with as much as 2 feet of sub-slab void and 30 feet of unstable soil. That’s pretty scary in any location, let alone a busy loading dock area. If you are seeing settlement signs around your property, don’t ignore the danger signs! Give us a call at 678-337-8374.