| Issue |
MATEC Web Conf.
Volume 107, 2017
Dynamics of Civil Engineering and Transport Structures and Wind Engineering – DYN-WIND’2017
|
|
|---|---|---|
| Article Number | 00040 | |
| Number of page(s) | 7 | |
| DOI | https://doi.org/10.1051/matecconf/201710700040 | |
| Published online | 24 May 2017 | |
Flexure response of thermal loaded concrete specimens by acoustic emission method
1 Brno University of Technology, Faculty of Civil Engineering, Veveri 331/95 Brno, Czech Republic
2 Rail Data Services Austria GmbH & Co KG, Steinergasse 11/5, A-1230 Wien, Austria
* Corresponding author: pazdera.l@fce.vutbr.cz
The response to fire of concrete structural members depends on the thermal, mechanical, and deformation properties of concrete. These properties vary significantly with temperature depending on the composition and characteristics of the concrete batch mix as well as heating rate and other environmental conditions. The paper presents the effects of a high temperature on selected physical properties of concrete. The main aim of the article is the evaluation of monitoring concrete properties loaded in a few thermal steps up to 1200 °C. Therefore, the concrete specimens were heated in a programmable laboratory furnace at a heating rate of 5 °C/min. The specimens were loaded at six temperatures, 200 °C, 400 °C, 600 °C, 800 °C, 1000 °C, and 1200 °C maintained for 60 minutes. The acoustic emission activity and some material characteristics were evaluated in a three-point bending test.
© The Authors, published by EDP Sciences, 2017
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