Nondestructive inspection method inside the reinforced concrete slab

摘要

PROBLEM TO BE SOLVED: To provide a nondestructive inspection method of the inside of a reinforced-concrete floor slab capable of efficiently and accurately carrying out nondestructive inspection in the periphery of the haunch part of a floor slab.SOLUTION: In a nondestructive inspection method of the inside of a floor slab 104 for making a sensor part 12 opposite to a haunch part 106 connected to a main grinder 102 at the lower part of a floor slab 104 (reinforced concrete floor slab), and for emitting an electromagnetic wave to the haunch part 106, and for detecting a deterioration or failure of the inside of the floor slab 104 by using the reflection wave, an antenna part configuring the sensor part 12, and having a length which is substantially equal to the width in the shorter side direction of an inclined surface 110 configuring the haunch part 106, and exposed from the connection part to the main grinder 102 is made opposite to the inclined surface 110, and the sensor part 12 is brought into contact with the inclined surface 110 in a state that the longitudinal direction of the antenna part is directed to the shorter side direction, and the electromagnetic wave is emitted.SELECTED DRAWING: Figure 5