E3S Web Conf.
Volume 106, 20195th International Scientific Conference on Civil Engineering-Infrastructure-Mining
|Number of page(s)||8|
|Published online||24 June 2019|
Strengthening of masonry and concrete structures working in elevated temperatures and mining tremors area
Cracow University of Technology, Faculty of Civil Engineering, Cracow, Poland
2 University of Ljubljana, Faculty of Civil and Geodetic Engineering, Ljubljana, Slovenia
* Corresponding author: firstname.lastname@example.org
In this paper, comparison of behaviour of composite strengthening bonded to concrete and masonry substrate are presented. Specimens are tested in single lap shear tests under constant load and action of elevated temperatures. Obtained results showed that tested stiff epoxy adhesives are vulnerable to elevated temperatures, changing strain distribution, whereas the tested flexible polyurethane adhesive works stable in the whole tested temperature range. The carried out analysis concerns cracked industrial chimneys working in mining areas, which are strengthened with composite materials and carry thermal and dynamic loads, and can be responsible for the composite strengthening detachment.
Key words: Elevated temperatures / Industrial chimneys / Stiff and flexible adhesives / Glass transition temperature / Mining tremors
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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