Study of Behavior of Textile-Reinforced Concrete with Epoxy Resin Matrix in Fire
| Autor: | Vladimír Mózer, Richard Fürst, Marek Pokorný, Tomáš Vlach |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
040101 forestry
Textile reinforcement Polypropylene Temperature resistance Materials science 020101 civil engineering 04 agricultural and veterinary sciences 02 engineering and technology Epoxy Spall 0201 civil engineering Matrix (geology) chemistry.chemical_compound chemistry visual_art visual_art.visual_art_medium 0401 agriculture forestry and fisheries General Materials Science Composite material Safety Risk Reliability and Quality Temperature load Textile-reinforced concrete |
| Zdroj: | Fire Technology. 58:53-74 |
| ISSN: | 1572-8099 0015-2684 |
| DOI: | 10.1007/s10694-021-01116-y |
| Popis: | Textile-reinforced concrete is currently most frequently used for non-load–bearing structures, but there is a vision for also using it in load–bearing construction elements. In recent years, this construction material has been subjected to detailed examination. Different combinations of materials for potential use in textile-reinforced concrete have been described. These differ in the type of concrete mix and the composition of the textile reinforcement. The aim of this work is to test the application of a specific textile-reinforced concrete, consisting of high-performance concrete, textile reinforcement from carbon fibers and its epoxy resin matrix, at an elevated temperature. The combination of these materials makes it possible to produce subtle load–bearing structures with excellent mechanical properties. The critical issue is the behavior of these structures when exposed to fire. A series of medium-scale fire condition experiments were carried out with a temperature load based on the ISO 834 curve, followed up by mechanical tests. The aim of these experiments was to describe critical areas of textile-reinforced concrete in fire and to propose possible solutions. In an indicative fire experiment, experimental samples displayed massive spall of concrete layers, and interaction between materials was lost due to the low temperature resistance of the epoxy resin. Concurrently, the optimal quantity of polypropylene fibers was experimentally determined. This paper presents an experimental demonstration of the problematic aspects of textile-reinforced concrete and subsequent recommendations for future work with practical application in the design of load–bearing structures. |
| Databáze: | OpenAIRE |
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