Vertex GPR was contracted to perform an investigation to determine the structural makeup of a concrete slab on grade. The concrete slab was thought to contain post-tension cables. However, once GPR scanning began, it was quickly determined that the slab was reinforced with one mat of rebar and grade beams. This information allowed the contractor to cut a trench rather than having to cut the floor in two locations and then horizontally excavate under the slab.
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