What type of information does radiography provide about the internal structure of concrete that other NDT methods might miss?

Radiography provides a direct, visual image of the internal structure of concrete, allowing for the detection of variations in density and the identification of embedded objects with a high degree of clarity that other non-destructive testing (NDT) methods might miss. Radiography uses X-rays or gamma rays to penetrate the concrete. As the radiation passes through the concrete, it is absorbed to varying degrees depending on the density and composition of the material. A detector, such as a film or di....