NDT - Ground Penetrating Radar
PCTS use a high frequency GPR to locate objects such as rebar, conduits and post-tension cables embedded in concrete. PCTS also offer handheld GPR units for reinforcement mapping; data is collected in a grid format to produce a map of any targets located in the concrete.
Introduction
PCTS apply GPR technology as it is totally non-destructive and can quickly map large structures. GPR is a pulse echo method: radio wave energy propagates through the test object from a moving antenna. These waves travel through the test object and echoes are created at boundaries of dissimilar materials.
The arrival and strength of these echoes can then be used to calculate the properties and inclusions listed below.
Application
CTS use GPR technology to detect:
Cracks
Delamination's
Honeycomb
Thickness
Voids
Reinforcement steel


