Title

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

Authors

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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