Concrete Scanning, GPR, & X-Ray in Honolulu, HI

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99-1026 Iwaena Street, Aiea, HI 96701

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Your local scanning expert

Penhall Technologies Scanning Analyst Joe


  • GSSI StructureScan and UtilityScan certified
  • RD7000 Utility locator trained
  • Hilti Transpointer trained
  • OSHA 30
  • US Air Force veteran
  • FDA and Metrology background
  • Avid golfer
Penhall Technologies Scanning Analyst Bryan


  • 9 yrs. as Penhall Employee
  • 6 yrs. of GPR Experience
  • Strong Leadership Skills
  • OSHA 30 Certified

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Scanning ensures safety when performing flat saw cutting into concrete

Safe to flat saw after concrete scanning for obstructionsAt a job site in Honolulu, HI, Penhall was asked to scan for any obstructions prior to flat sawing. The concrete that was scanned was 5400 linear feet, where we were able to find and mark all obstructions to ensure safety when cutting.

Ground penetrating radar used to locate obstruction before core drilling

GPR Scanning to locate post tension cable before core drillingWhen Penhall was tasked to scan for another client in Honolulu, HI, we used ground penetrating radar in 6 different areas of the location. This was to ensure that it was safe to core drill 6″ holes into the 12″ thick concrete slab.

Finding rebar and identifying other hazards in suspended concrete slab

Finding rebar and identifying hazards with GPR concrete scanningAt yet another location in Honolulu, HI, ground penetrating radar was used to identify hazards within a 6″ suspended concrete slab. After scanning, the client was now safe to have an 8″ diameter core drill performed.

Concrete scanning detects post tension cables

Concrete scanning to find post tension cable and rebar in slabWe recently worked with another client in Honolulu, where we did concrete scanning on 120 different areas at a single location. Penhall was able to detect post tension cable prior to core drilling as to avoid risking any accidents.

We mark the rebar and other hazards after scanning

Marking rebar and other hazards with concrete scanningIn order to prepare for some sawing, Penhall inspected 530 square feet of concrete using GPR scanning. We were able to locate any obstructions so that the area was good to cut safely.