Ultrasonic Wave Reflection and Resonant Frequency Measurements for Monitoring Early-Age Concrete
Publication: Journal of Materials in Civil Engineering
Volume 21, Issue 9
Abstract
Various methods of nondestructive testing offer the opportunity to understand hydration of cement-based materials. In particular, the ultrasonic wave reflection method does not require access to two sides of a structural member and can be performed continuously and on site. This advantage is very significant when estimating the in situ compressive strength of early-age concrete. However, it is also necessary to understand which properties are measured by the ultrasonic wave reflection method and compare the measurements with other testing methods. This paper demonstrates the nature of these measurements with the wave reflection method by comparing the results of the other nondestructive testing method using resonant frequencies.
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Acknowledgments
This work was supported by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD) (Grant No. UNSPECIFIEDKRF-2006–612-D00087), the National Science Foundation (Grant Nos. NSF0408427, NSF0653869, and NSF0654263), and the University of Louisville (Intramural Research Incentive Grants). Special appreciation is expressed to Mr. Larry D. Olson for his valuable comments and for the lending of the equipment.
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 21 • Issue 9 • September 2009
Pages: 476 - 483
Copyright
© 2009 ASCE.
History
Received: Aug 31, 2007
Accepted: Mar 11, 2009
Published online: Aug 14, 2009
Published in print: Sep 2009
Notes
Note. Associate Editor: John S. Popovics
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