Comparison of acoustic emission activity in steel-reinforced and FRP-reinforced concrete beams

    Authors

    A. Mirmiran;S. Philip

    Comments

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    Abbreviated Journal Title

    Constr. Build. Mater.

    Keywords

    acoustic emission; FRP; concrete; Construction & Building Technology; Engineering, Civil; Materials; Science, Multidisciplinary

    Abstract

    In order to compare the acoustic emission signature of concrete beams reinforced with fiber reinforced polymer (FRP) or steel re-bars, a total of 16 203 x 203 x 1320-mm FRP-RC and steel-RC beams were tested under bending. The FRP-RC beams emitted higher activity and peak amplitude than their steel-RC counterparts. They also had lower felicity ratios, showed higher activity at each load drop, and emitted signals even during the unloading process. These characteristics were attributed to the lower stiffness, larger deflections, and brittleness of FRP re-bars, as well as their lower bond strength with concrete. (C) 2000 Elsevier Science Ltd. All rights reserved.

    Journal Title

    Construction and Building Materials

    Volume

    14

    Issue/Number

    6-7

    Publication Date

    1-1-2000

    Document Type

    Article

    Language

    English

    First Page

    299

    Last Page

    310

    WOS Identifier

    WOS:000165381700001

    ISSN

    0950-0618

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