Publication detail

The Acoustic Emission Parameters Obtained during Three-point Bending Test on Thermal-stressed Concrete Specimens

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"
}