Journal Published Online: 01 January 1986
Volume 8, Issue 2

New Test for Determining Fundamental Frequencies of Concrete

CODEN: CCAGDP

Abstract

The standard methods for determining fundamental frequencies of concrete specimens (ASTM Test Method for Fundamental Transverse, Longitudinal and Torsional Frequencies of Concrete Specimens [C 215]) can be markedly improved by using modern electronic equipment. In the new method, a small accelerometer pickup senses the vibrations of a concrete specimen after it is lightly struck, and a spectrum analyzer portrays the information in the frequency domain. The main advantages of the new method are speed, ability to test small specimens, and no noise; the chief disadvantage is higher equipment cost.

Author Information

Gaidis, JM
Washington Research Center, W. R. Grace and Co., Columbia, MD
Rosenberg, AM
Washington Research Center, W. R. Grace and Co., Columbia, MD
Pages: 3
Price: $25.00
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Details
Stock #: CCA10065J
ISSN: 0149-6123
DOI: 10.1520/CCA10065J