The influence of aggregate grain size on the parameters of acoustic emission signals obtained from a three-point bending test on concrete specimens degraded by high-temperatures

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F18%3APU130186" target="_blank" >RIV/00216305:26110/18:PU130186 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2452321618304827" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2452321618304827</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.prostr.2018.12.244" target="_blank" >10.1016/j.prostr.2018.12.244</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The influence of aggregate grain size on the parameters of acoustic emission signals obtained from a three-point bending test on concrete specimens degraded by high-temperatures

Popis výsledku v původním jazyce

One of the advantages of concrete when compared to other building materials is its fire resistance. Fire resistance of concrete structures depends on the thermal, mechanical and deformation properties of the used concrete. Some concrete structures can be exposed to extreme temperature conditions (e.g. concrete structures in nuclear power plants or in tunnels during fires). This paper presents the measurement results of a three-point bending test on three different mixtures of concrete specimens that have been exposed to high temperatures. The concrete specimens were heated in a programmable laboratory oven at a heating rate of 5 °C/min and were exposed to the following temperatures: 400 °C, 600 °C, 800 °C, 1000 °C and 1200 °C. The heating was maintained for 60 minutes. The obtained results indicate that the comparison of the absolute measured values is not sufficient. For this reason, the comparison of the individual mixtures is carried out using the relative values, which more clearly demonstrate the degree of damage to the concrete samples caused by exposure to elevated temperatures.

Název v anglickém jazyce

The influence of aggregate grain size on the parameters of acoustic emission signals obtained from a three-point bending test on concrete specimens degraded by high-temperatures

Popis výsledku anglicky

One of the advantages of concrete when compared to other building materials is its fire resistance. Fire resistance of concrete structures depends on the thermal, mechanical and deformation properties of the used concrete. Some concrete structures can be exposed to extreme temperature conditions (e.g. concrete structures in nuclear power plants or in tunnels during fires). This paper presents the measurement results of a three-point bending test on three different mixtures of concrete specimens that have been exposed to high temperatures. The concrete specimens were heated in a programmable laboratory oven at a heating rate of 5 °C/min and were exposed to the following temperatures: 400 °C, 600 °C, 800 °C, 1000 °C and 1200 °C. The heating was maintained for 60 minutes. The obtained results indicate that the comparison of the absolute measured values is not sufficient. For this reason, the comparison of the individual mixtures is carried out using the relative values, which more clearly demonstrate the degree of damage to the concrete samples caused by exposure to elevated temperatures.

Druh

D - Stať ve sborníku

CEP obor

—

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

ECF22 - Loading and Environmental effects on Structural Integrity

ISBN

—

ISSN

2452-3216

e-ISSN

—

Počet stran výsledku

6

Strana od-do

1177-1182

Název nakladatele

Elsevier

Místo vydání

Neuveden

Místo konání akce

Beograd

Datum konání akce

26. 8. 2018

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000459860900194