Three-dimensional Ground Penetrating Radar (3D GPR) allows us to peer inside visually impenetrable building elements. We most often use it locate embedded steel reinforcement,tendons, pipes etc., in concrete slabs. There are other technologies that can perform such tasks, but they have a number of shortcomings.
1. Radiography can produce reliable, high-resolution images, but the process requires a potentially hazardous radioactive source and access to both sides of the scanned item. It’s also tedious and time consuming.
2. Magnetometers can detect ferrous metal (iron and steel), but cannot determine depth or dimensions. Deeply embedded materials can be elusive to most hand-held magnetometers and non-ferrous materials (aluminum, plastic, copper, etc.) are undetectable.
3. Two-dimensional GPR will locate embedded items and gross anomalies in the scanned materials, but depth cannot be accurately determined. It also produces a lower resolution image compared to 3D.
The system we use can scan extremely dense materials (such as concrete) to depths of up to 20 inches in any plane. The three-dimensional aspect reliably depicts the scanned items in context. Please do not hesitate to ask us for a free demonstration of our 3D GPR.