MATEC Web Conf.
Volume 364, 2022International Conference on Concrete Repair, Rehabilitation and Retrofitting (ICCRRR 2022)
|Number of page(s)||5|
|Section||Fibre Reinforced Cementitious Materials|
|Published online||30 September 2022|
Flexural strength of fibre reinforced concrete in relation to the angle of magnetically orientated fibres
Czech Technical University in Prague, Faculty of Civil Engineering, Experimental Centre, Thákurova 7, Praha, 166 29, Czech Republic
2 Czech Technical University in Prague, Faculty of Electrical Engineering, Department of Electrotechnology, Technická 2, 166 27 Praha, Czech Republic
* Corresponding author: firstname.lastname@example.org
This paper focuses on high-performance fibre-reinforced concrete and its flexural strength concerning fibre orientation. The orientation is provided by a fully controlled special device. This device can align the fibres in fresh concrete using a magnetic field. The specimens are inserted into the device at different angles to ensure different fibre orientations concerning the longer side of the sample, which corresponds to the direction of the main tensile stresses. Specifically, angles of 0 °, 30 #x00B0;, 60 ° and 90 ° are tested and compared with each other and with reference specimens that are not exposed to a magnetic field. All samples are measured by a non-destructive method. This method was developed in our previous research and is based on measuring the quality factor Q of a measuring coil using an impedance meter. The samples are inserted into a measuring coil connected to an impedance meter. Flexural strength is obtained from the results of a three-point bending test. All samples are tested until complete failure.
© The Authors, published by EDP Sciences, 2022
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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