非破壊試験法 (3)

[V-619] Influences of Artificial Error in Measurement and Inhomogeneous Material on Stress Estimation in Concrete by Ultrasonic Method

*Ryoutarou Kagami¹, Yujin Komori¹, Kentaro Ohno¹, Atusi Ueno¹, Tomohisa Kamada¹, Naoki Nagamoto², Naohumi Ando² (1. Tokyo Metropolitan University, 2. Sumitomo Mitsui Construction Co.,Ltd)

Keywords:prestressed concrete, Stress Estimation, Ultrasonic velocity rate of change, Sound elasticity constant, Fluctuation of measured values