品質管理(3)

[VI-814] Development of the optical fiber type concrete filling judgment device and application to the spot

〇Yuichi Iai¹, Yoshihiko Nakamura¹, Shinya Osawa¹, Hirokazu Ide¹ (1.IHI Infrastructure Systems Co.,Ltd.)

Keywords:concrete, filling, optical fiber

In the casting of the concrete at the construction site, it is important that the fresh concrete is filled into the form surely to ensure the quality of the concrete structure and extend its life.There are various types of sensors that detect unfilling, but conventional filling sensors have problems such as being of the left-over type and requiring many man-hours for wiring.Therefore, based on these problems,we developed a new compact optical fiber type concrete filling judgment device that can be removed after sensing and we carried out performance test in a laboratory and the spot.