INVESTIGATION OF APPLICABILITY OF ACOUSTIC PULSE VELOCITY MEASUREMENTS TO EVALUATION OF QUALITY OF CONCRETE IN BRIDGE DECKS
THE COMPRESSIONAL WAVE VELOCITY AND SEVERAL OTHER SIGNIFICANT PROPERTIES OF CONCRETE SPECIMENS WERE DETERMINED IN THE LABORATORY BY USING A WIDE VARIETY OF CONCRETE COMPOSITIONS. IT WAS FOUND THAT THE MEASURED VELOCITY AND THE UNIT WEIGHT COULD BE USED TO ESTIMATE THE ELASTIC MODULUS OF THE CONCRETE AS MEASURED EITHER BY STRESS-STRAIN OBSERVATIONS OR BY RESONANT FREQUENCY TESTING. IT WAS ALSO FOUND THAT THE COMPRESSIONAL WAVE VELOCITY IN CONCRETES OF SIMILAR COMPOSITION WAS GENERALLY INDICATIVE OF QUALITY. A PORTABLE VELOCITY-MEASURING INSTRUMENT EMPLOYING SOME NOVEL FEATURES WAS DEVELOPED TO MEASURE ACOUSTIC PULSE VELOCITIES ON THE ACCESSIBLE UPPER SURFACE OF BRIDGE DECKS. IT APPEARS THAT THIS INSTRUMENT FULFILLS ITS DESIGN OBJECTIVES AND IS APPLICABLE TO THE PROBLEM OF DETECTING THE EXTENT OF DETERIORATION OF CONCRETE IN BRIDGE DECKS. /AUTHOR/
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Supplemental Notes:
- Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
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Authors:
- Swift, Gilbert
- Moore, William M
- Publication Date: 1972
Media Info
- Media Type: Digital/other
- Features: Figures; References; Tables;
- Pagination: p. 29-39
- Monograph Title: Nondestructive testing of concrete
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Serial:
- Highway Research Record
- Issue Number: 378
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Acoustic measuring instruments; Acoustics; Bridge decks; Concrete; Concrete tests; Nondestructive tests; Speed of sound
- Old TRIS Terms: Acoustic measurement
- Subject Areas: Highways; Materials;
Filing Info
- Accession Number: 00214127
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Jun 5 1972 12:00AM