I2.2 - Application of active thermography to the detection of safety relevant defects in civil engineering structures

Christiane Maierhofer & Mathias Roellig
During the last ten years, advanced non-destructive testing (NDT) methods like radar, ultrasonic and sonic methods have become available for the assessment of existing structures in civil engineering. These technologies are mainly suited for the detection and characterization of inhomogeneities at depths between 5 and 100 cm. In the near surface region within the first 10 cm, there is still a deficiency of information as many safety relevant cases of damage originate from defects close...