TY - GEN
T1 - Effects of moisture on ultrasound propagation in cement mortar
AU - Ju, Taeho
AU - Li, Shuaili
AU - Achenbach, Jan
AU - Qu, Jianmin
N1 - Publisher Copyright:
© 2015 AIP Publishing LLC.
PY - 2015
Y1 - 2015
N2 - In concrete structures, moisture is often a major cause of chemically related degradations such as alkaline-silica reaction. To develop ultrasonic nondestructive evaluation techniques for monitoring such chemical degradations, it is necessary to understand how moisture affects the propagation of ultrasound in concrete. To this end, the objective of this paper is to experimentally determine the correlation between the moisture content in cement mortar and ultrasonic wave propagation. Specifically, effects of moisture on the ultrasonic phase velocity and attenuation are examined. It is found that, for the cement mortar samples considered in this study, moisture has negligible effect on the ultrasonic phase velocity. However, moisture can significantly increase the attenuation of ultrasound in cement mortar even in the sub-MHz frequency range.
AB - In concrete structures, moisture is often a major cause of chemically related degradations such as alkaline-silica reaction. To develop ultrasonic nondestructive evaluation techniques for monitoring such chemical degradations, it is necessary to understand how moisture affects the propagation of ultrasound in concrete. To this end, the objective of this paper is to experimentally determine the correlation between the moisture content in cement mortar and ultrasonic wave propagation. Specifically, effects of moisture on the ultrasonic phase velocity and attenuation are examined. It is found that, for the cement mortar samples considered in this study, moisture has negligible effect on the ultrasonic phase velocity. However, moisture can significantly increase the attenuation of ultrasound in cement mortar even in the sub-MHz frequency range.
UR - http://www.scopus.com/inward/record.url?scp=85063848584&partnerID=8YFLogxK
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U2 - 10.1063/1.4914756
DO - 10.1063/1.4914756
M3 - Conference contribution
AN - SCOPUS:85063848584
T3 - AIP Conference Proceedings
SP - 1409
EP - 1414
BT - 41st Annual Review of Progress in Quantitative Nondestructive Evaluation, Volume 34
A2 - Chimenti, Dale E.
A2 - Bond, Leonard J.
T2 - 41st Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2014
Y2 - 20 July 2014 through 25 July 2014
ER -