Concrete Material Response by Acoustic Spectra Analysisby Demeter G. Fertis, (M.ASCE), Prof. of Civ. Engrg.; The Univ. of Akron, Akron, Ohio,
Serial Information: Journal of the Structural Division, 1976, Vol. 102, Issue 2, Pg. 387-400
Document Type: Journal Paper
Abstract: The purpose of the research in this paper was to determine material behavior and strength characteristics of concrete materials, by studying stochastically the random-type acoustic emission patterns and intensities that emanate from concrete during loading. The concrete specimens used for this purpose are standard concrete cylinders made up from specific concrete mixtures with definite material properties and strength characteristics. The first objective in this research was to develop an experimental setup and recording system that is capable of recording the waveform patterns and intensities of these acoustic emissions. The second objective was to develop a methodology that will establish the relationship of these emissions with general material behavior of concrete mixtures, as well as their relationship to specific concrete properties. Suggestions are also included here about the types of concrete problems that can be approached by using this method.
Subject Headings: Concrete | Strength of materials | Acoustic techniques | Emissions | Mixtures | Stochastic processes
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