Nonlinear Acoustic Spectroscopy Method for Nondestructive Testing of Thermally Damaged Concrete

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F18%3APU128241" target="_blank" >RIV/00216305:26110/18:PU128241 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.4028/www.scientific.net/SSP.276.128" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/SSP.276.128</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4028/www.scientific.net/SSP.276.128" target="_blank" >10.4028/www.scientific.net/SSP.276.128</a>

Result language
angličtina
Original language name
Nonlinear Acoustic Spectroscopy Method for Nondestructive Testing of Thermally Damaged Concrete
Original language description
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.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Binders, Materials and Technologies in Modern Construction IV
ISBN
978-3-0357-1348-0
ISSN
1662-9779
e-ISSN
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Number of pages
6
Pages from-to
128-133
Publisher name
Trans Tech Publications
Place of publication
Switzerland
Event location
Brno
Event date
Dec 7, 2017
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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