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X-ray Versus GPR When Concrete Scanning

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X-ray Versus GPR When Concrete Scanning
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GPR concrete scanning and digital X-ray imaging are two methods utilized in the construction industry. Both processes evaluate the integrity of the concrete structure as well as locate embedded features.

This is a necessary step before concrete cutting, coring, or drilling.
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concrete scanning and imaging with trinity subsurface before cutting, coring, or drillingi

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Of the two methods, which is more effective? Is GPR or X-ray more efficient, safe, and accurate? Trinity Subsurface performs concrete scanning and imaging with GPR equipment.

Ground penetrating radar can detect:

  1. Reinforcing steel locations
  2. Electrical conduits
  3. Post-tension cables
  4. Slab thickness and voids
  5. Non-metallic and metallic utilities
  6. Subsurface pipes

What are the risks of X-ray imaging?

The technology of the ground penetrating radar equipment is significantly safer for all workers on a construction site than X-ray imaging. The typical power output of a GPR antenna is less than a cell phone. X-ray equipment is a known health risk due to radiation exposure. Companies that provide X-ray imaging services must ensure safety by clearing all workers from a large area around their X-ray location.

GPR scanning demonstrates several other advantages in addition to worker safety. This includes:

  1. Immediate scan results: GPR equipment processes subsurface images in real-time.
  2. Silent equipment on site: Ground penetrating radar operates quietly.
  3. Highly efficient: Field employees can map large scopes with ease. GPR equipment is transportable and stores large quantities of underground map images.
  4. 3D reporting: GPR is more suitable for scanning slab-grade concrete structures. Leveraging Proseq equipment, receive concrete scan reports with augmented reality of subsurface features.

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gpr scanning on conrete features

Why are x-ray concrete investigations still viable?
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X-ray imaging relies heavily on technical interpretation to locate and identify structures within concrete. Although X-raying remains a viable and accurate testing method for marking objects embedded in concrete, the most cost-effective and safest option is GPR equipment. Trinity Subsurface, LLC provides GPR concrete imaging, a non-destructive concrete assessment method, to best meet the needs of its clients.

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