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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Acoustic Emission Behavior of Concrete
Author(s): P.F. Mlakar, R.E. Walker, B.R. Sullivan,
and V.P. Chiarito
Publication: Special Publication
Appears on pages(s): 619-638
Keywords: acoustic emission; nondestructive tests; pipes (tubes);
reinforced concrete; stresses; vibration.
Abstract:The acoustic emissions of various concrete specimens under different loadings are studied. First, six monotonic and six cyclic load compression tests on 6- by 12-in. cylindrical concrete specimens were monitored for acoustic emission. Fundamental data were collected and analyzed and the Kaiser effect was observed. The data are presented as counts versus events to aid in the identification of source characteristics. Next, one multiaxial load (compression and tension) test was monitored. The slope of the counts- versus-events curve for this primarily tension test differed from those of the curves for the compression test. This difference suggests that the source characteristics of concrete acoustic emissions can be empirically separated and identified. Finally, the emissions detected in a model of a reinforced concrete circular conduit
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