Evaluation of acoustic emission signals obtained during the three-point bending loading of thermally degraded concrete samples

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Evaluation of acoustic emission signals obtained during the three-point bending loading of thermally degraded concrete samples

Popis výsledku v původním jazyce

Due to fires of building structures, there has been a growing interest in investigating the properties of concrete at high temperatures. In a fire, a temperature of up to 1400 °C may be measured. Such high temperatures will cause changes in the structures of the entire construction. Ultrasonic methods such as acoustic emission method can be used to monitor changes in the structure caused by a fire. Heated to selected temperatures of 200 °C, 400 °C, 600 °C, 800 °C, 1000 °C, and 1200 °C, the concrete specimens were maintained for 60 minutes. Then, they were dried for another 48 hours at 110 °C and, after that, cooled down to a laboratory temperature. Beam concrete specimens were loaded under a three-point bending test. The evaluations of the experiments imply the possibility of using the acoustic emission method to describe the changes in a concrete structure after it is fire-degraded at the three-point bending loading.

Název v anglickém jazyce

Evaluation of acoustic emission signals obtained during the three-point bending loading of thermally degraded concrete samples

Popis výsledku anglicky

Due to fires of building structures, there has been a growing interest in investigating the properties of concrete at high temperatures. In a fire, a temperature of up to 1400 °C may be measured. Such high temperatures will cause changes in the structures of the entire construction. Ultrasonic methods such as acoustic emission method can be used to monitor changes in the structure caused by a fire. Heated to selected temperatures of 200 °C, 400 °C, 600 °C, 800 °C, 1000 °C, and 1200 °C, the concrete specimens were maintained for 60 minutes. Then, they were dried for another 48 hours at 110 °C and, after that, cooled down to a laboratory temperature. Beam concrete specimens were loaded under a three-point bending test. The evaluations of the experiments imply the possibility of using the acoustic emission method to describe the changes in a concrete structure after it is fire-degraded at the three-point bending loading.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Experimental Stress Analysis - 56th International Scientific Conference, EAN 2018 - Conference Proceedings

ISBN

9788027040629

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

326-331

Název nakladatele

Czech society for Mechanics

Místo vydání

Harachov

Místo konání akce

Harachov

Datum konání akce

5. 6. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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