| Issue |
MATEC Web Conf.
Volume 107, 2017
Dynamics of Civil Engineering and Transport Structures and Wind Engineering – DYN-WIND’2017
|
|
|---|---|---|
| Article Number | 00034 | |
| Number of page(s) | 5 | |
| DOI | https://doi.org/10.1051/matecconf/201710700034 | |
| Published online | 24 May 2017 | |
Effect of steel fibres dosage in alkali-activated slag mortar on acoustic emission obtained during three-point bending tests
Brno University of Technology, Faculty of Civil Engineering, Veveří 331/95, Brno 602 00, Czech Republic
* Corresponding author: libor.topolar@vutbr.cz
The acoustic emission phenomenon is directly associated with nucleation of cracks in structural materials during loading. This paper analyses acoustic emission signals captured during three-point bending fracture tests of alkali-activated slag mortar specimens with different amount of steel fibres. Typical parameters of acoustic emission signals were identified for different mixtures to further describe the under-the-stress behaviour and failure development. The acoustic emission signals from crack growth were continuously monitored using acoustic emission sensors mounted on the specimen surface. Acoustic emission results are accompanied by selected mechanical fracture parameters determined via evaluation of load versus displacement diagrams recorded during three-point bending tests.
© The Authors, published by EDP Sciences, 2017
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