[V-551] Ultrasonic tomography measurement of concrete specimens that produced ASR
Keywords:ASR, Ultrasound tomography, Nondestructive testing
Ultrasonic tomography measurement of concrete specimens that produced ASR
It is thought that cracks in the concrete affect the decrease in compressive strength, elastic modulus, and ultrasonic wave propagation speed in concrete deteriorated by ASR, but the distribution of cracks by ASR affects the physical properties of concrete Has not been elucidated. In order to understand the influence of the difference in the amount of prestress introduction on the occurrence of cracks and the ultrasonic wave propagation velocity by ASR, specimens with different amounts of prestress introduction were manufactured, and crack observation and ultrasonic tomography measurement were performed.
It is thought that cracks in the concrete affect the decrease in compressive strength, elastic modulus, and ultrasonic wave propagation speed in concrete deteriorated by ASR, but the distribution of cracks by ASR affects the physical properties of concrete Has not been elucidated. In order to understand the influence of the difference in the amount of prestress introduction on the occurrence of cracks and the ultrasonic wave propagation velocity by ASR, specimens with different amounts of prestress introduction were manufactured, and crack observation and ultrasonic tomography measurement were performed.
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