Concrete Scanning, GPR, & X-Ray in Washington, D.C.

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8536 Terminal Road, Unit G, Lorton, VA 22079

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GPR Concrete scanning used across multiple locations and floors prior to core drilling on multiple floors

Concrete scanning before core drillingPenhall Technologies was asked to scan 17 locations in American University prior to core drilling. A GSSI StructureScan MINI was used to scan these areas. The locations were spread throughout the building on various floors. The customer wanted to be aware of any rebar or conduits running through the areas so they would be able to move the core locations if necessary. GPR only requires access to one side of the concrete. Ground penetrating radar is the preferred method for slab on grade projects. GPR scanning is quick and reliable with results in real time with no processing time. To check for live conduits, a utility wand was used to sweep each area for power.

GPR scanning is used to find rebar and cables in a concrete slab

Find rebar and cables in concrete slab or wallAt a location in Washington, D.C., Penhall was asked to perform some concrete scanning of two areas prior to core drilling.  This was done to ensure that there were no obstructions, such as post-tension cable, rebar, or conduit damaged before drilling.

Ground penetrating radar is used to scan elevated concrete slab to locate tension cables

Concrete scan using GPR on elevated slabIn Tysons Corner, VA, we were asked to scan (5) areas prior to core drilling five 3.5” holes through 6” elevated concrete slab. We were able to successfully locate and drill holes without touching the post-tension cable to secure the integrity of the slab.

Locate post tension cables and detect patterns within concrete slab

Detect rebar patterns using GPR in concreteAt an apartment complex in Potomac, MD, Penhall was asked to cut two area of 2’ x2’ and 10” x 10” openings within a 24” elevated concrete slab.  Prior to cutting, it was necessary for our analysts to scan each location to make certain post-tension cable is not hit and ensure the integrity of the slab is kept.

Detect hazards before performing renovations to avoid costly damage to vital cables or conduits

GPR scan to find hazards before renovationPenhall was asked to perform concrete cutting and coring at a hospital in Bethesda, MD. Our team suggested we scan before any cutting began to help avoid costly damage to vital cables or conduits. For this particular project, we scanned (12) areas prior to cutting (3) door openings and (1) square opening.