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TOPOLÁŘ, L. KUCHARCZYKOVÁ, B. KOCÁB, D. PAZDERA, L.
Original Title
The Acoustic Emission Parameters Obtained during Three-point Bending Test on Thermal-stressed Concrete Specimens
Type
conference paper
Language
English
Original Abstract
Fire response of concrete structural members depends on thermal, mechanical, and deformation properties of concrete. These properties vary significantly with temperature and also depend on the composition and characteristics of the concrete batch mix as well as heating rate and other environmental conditions. Concrete structures could be exposed to extreme temperature conditions. Examples of such conditions are concrete foundations for launching rockets carrying spaceships, concrete structures in nuclear power stations or those accidentally exposed to fire, for instance in the case of tunnel fires. This paper analyses acoustic emission signals captured during three-point bending test on thermal-stressed concrete specimens. The method of acoustic emission is an experimental tool suitable for monitoring the failure processes in materials. The typical parameters of acoustic emission signal were identified during the acoustic emission records for different concrete specimens to further describe the under-the-stress behaviour and failure development. The amount of crack growth was continuously monitored using four acoustic emission sensorsmounted on the specimens.
Keywords
acoustic emission method; three-point bending test; plain concrete; high-temperature degradation; modulus of elasticity;
Authors
TOPOLÁŘ, L.; KUCHARCZYKOVÁ, B.; KOCÁB, D.; PAZDERA, L.
Released
2. 6. 2017
Publisher
Elsevier
Location
Netherlands
ISBN
1877-7058
Periodical
Procedia Engineering
Year of study
190
Number
2017
State
Kingdom of the Netherlands
Pages from
111
Pages to
117
Pages count
7
URL
http://www.sciencedirect.com/science/article/pii/S1877705817324554
Full text in the Digital Library
http://hdl.handle.net/11012/69342
BibTex
@inproceedings{BUT135710, author="Libor {Topolář} and Barbara {Kucharczyková} and Dalibor {Kocáb} and Luboš {Pazdera}", title="The Acoustic Emission Parameters Obtained during Three-point Bending Test on Thermal-stressed Concrete Specimens", booktitle="Structural and Physical Aspects of Construction Engineering", year="2017", journal="Procedia Engineering", volume="190", number="2017", pages="111--117", publisher="Elsevier", address="Netherlands", doi="10.1016/j.proeng.2017.05.315", issn="1877-7058", url="http://www.sciencedirect.com/science/article/pii/S1877705817324554" }