Concrete Scanning, GPR, & X-Ray in San Leandro, CA

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13750 Catalina Street, San Leandro, CA 94577

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Your local scanning expert

Penhall Technologies Scanning Analyst Ken


  • Osha 30 certified
  • 1 year experience in concrete demo
  • Certified utility locator
  • GSSI SIR 3000 & HD Mini certified
  • TWIC Clearance

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Concrete roof being scanned for post tension cable or any other obstructions

concrete roof scanned for post tension cables
Penhall was asked to scan an 8″ thick concrete on a roof in Fremont, CA. The client was looking for post tension cable along with any other obstructions before core drilling in two areas.

GPR scanning to locate all obstructions including rebar, tension cables, and conduit

ground penetrating radar used to find rebar, cables, and conduit
In San Francisco, CA, we located existing post tension cables, conduits, and rebar within a 12″ thick suspended concrete slab. In addition, we scanned another area of 24″ x 24″.

San Francisco Zoo hired us to perform concrete scanning before setting anchors in birdcage

Concrete scanning at SF zoo
Penhall had the opportunity to perform concrete scanning for the San Francisco Zoo inside their birdcage. We scanned an 8″ thick concrete slab for obstructions in four 16″ x 16″ areas prior to their installing anchors.

To ensure accuracy, we use a number of GPR antennas

GPR scanning equipment
At another job location in Oakland, CA, we used ground penetrating radar to scan concrete at a site to avoid any cutting hazards. We used several antennas to ensure the accuracy of our findings so it was safe to move forward with electric saw work to create a trench.