構造物調査・診断(3)／振動

[V-673] Fundamental study on exfoliation and exfoliation of concrete members using computed tomography

〇Yu Egashira², Fumiya Kaga², Naoko Yoshida³, Kohei Yamaguchi¹ (1.Nagasaki University, 2.Nagasaki graduate school, 3.FUJI FILM)

Keywords:Maintenance, Bridge periodic inspection, Concrete, Computed tomography

It is known that concrete frowning is caused by cracks caused by corrosion of steel bars and volume expansion. However, at present, the mechanism of concrete frowning has not been elucidated.
In this study, we use a composite deterioration tester that has both functions of a corrosion accelerator and a fatigue tester to generate winds that are as close as possible to those generated in an actual bridge. The purpose of this study is to clarify the mechanism of the generation by monitoring the inside of the concrete by computer tomography.