Applicability of Ground Penetrating Radar Exploration Technique for the Diagnosis of Concrete Structures

Ground Penetrating Radar Technique that is method of nondestructive testing is useful to detect other materials that exist inside to concrete without destroying concrete. The purpose of this study is to detect character of concrete electric wave, thickness measurement, Pipe that is laid under the ground on concrete inside through an experiment about interior prospecting of concrete slab. We made a concrete slab (This construction's dimensions are 1400 mm(L)×600 mm(W)×300 mm(D)) and there are the diameter 40, 90, 110 mm PVC pipe and floor of 100, 150, 200, 250, 300 mm on its inside. This experiment show small difference between real value and measured value. But, Analysis process of GPR has much variables. So, if we do a experiment with other nondestructive testing than we will get more correct result.