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MATYSÍK, M. CARBOL, L. CHOBOLA, Z. PLŠKOVÁ, I.
Original Title
Nonlinear Acoustic Spectroscopy Method for Nondestructive Testing of Thermally Damaged Concrete
Type
conference paper
Language
English
Original Abstract
Most concrete structures are subjected to a range of temperature corresponding to normal environmental temperatures. However, there are important cases where concrete structures may be exposed to much higher temperatures (e.g., jet aircraft engine blasts, building fires, chemical and metallurgical industrial applications in which the concrete is in close proximity to furnaces, and some nuclear power-related postulated accident conditions). Exposure of concrete to high temperatures affects its mechanical properties. In this paper we examine the dependence of the fundamental frequency on temperature to which the concrete beams were heated. Fundamental frequencies were obtained by an innovative method used Pseudorandom Binary Sequence of Maximum Length as a perturbation signal. For the verification of the results the Ultrasonic Pulse Velocity in concrete were also measured and flexural bending strengths were determined. The results show method with Pseudorandom Binary Sequence of Maximum Length as a perturbation signal as a very promising for non-destructive testing of thermally damaged concrete.
Keywords
Maximum Length Sequence, Pseudorandom Binary Sequence, Ultrasonic Pulse Velocity, Concrete, Thermally Damaged Concrete, Flexural Bending Strength
Authors
MATYSÍK, M.; CARBOL, L.; CHOBOLA, Z.; PLŠKOVÁ, I.
Released
20. 6. 2018
Publisher
Trans Tech Publications
Location
Switzerland
ISBN
978-3-0357-1348-0
Book
Binders, Materials and Technologies in Modern Construction IV
1662-9779
Periodical
Solid State Phenomena
Year of study
2018
Number
276
State
Swiss Confederation
Pages from
128
Pages to
133
Pages count
6
BibTex
@inproceedings{BUT148496, author="Michal {Matysík} and Ladislav {Carbol} and Zdeněk {Chobola} and Iveta {Plšková}", title="Nonlinear Acoustic Spectroscopy Method for Nondestructive Testing of Thermally Damaged Concrete", booktitle="Binders, Materials and Technologies in Modern Construction IV", year="2018", journal="Solid State Phenomena", volume="2018", number="276", pages="128--133", publisher="Trans Tech Publications", address="Switzerland", doi="10.4028/www.scientific.net/SSP.276.128", isbn="978-3-0357-1348-0", issn="1662-9779" }