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Developing a Nondestructive Method for Revealing Defective Areas in Reinforced Concrete Under Bending Conditions

  • Electromagnetic Methods
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Abstract

We present results of studying the spatial variation of parameters of the electrical response to a weak impact under stepwise loading of concrete beams reinforced with steel rods. It is proposed to use the following diagnostic parameters to characterize the presence of a defective area in reinforced beams: the maximum coefficient of correlation between the spectrum of electrical signal after stepwise loading and the original spectrum; the frequency shift for which the maximum correlation coefficient is observed; the coefficient of correlation between the spectrum of signal at the current loading stage and the signal spectrum at the previous stage; and the center of gravity of the spectrum. The proposed method can be used to locate the defective area in reinforced concrete under bending conditions.

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Correspondence to T. V. Fursa, M. V. Petrov or D. D. Dann.

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Russian Text © The Author(s), 2019, published in Defektoskopiya, 2019, No. 4, pp. 37–42.

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Fursa, T.V., Petrov, M.V. & Dann, D.D. Developing a Nondestructive Method for Revealing Defective Areas in Reinforced Concrete Under Bending Conditions. Russ J Nondestruct Test 55, 293–298 (2019). https://doi.org/10.1134/S1061830919040065

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  • DOI: https://doi.org/10.1134/S1061830919040065

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