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Experimental Evaluation of Carbon Reinforced TRC with Cement Suspension Matrix at Elevated Temperature
Textile-reinforced concrete (TRC) is a new composite material comprising high-performance concrete and textile reinforcement from textile yarns with a matrix, usually consisting of epoxy resins (ER). The most significant advantage of ER is the homogenization of all filaments in the yarn and full uti...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9182705/ https://www.ncbi.nlm.nih.gov/pubmed/35683846 http://dx.doi.org/10.3390/polym14112174 |
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author | Fürst, Richard Hejtmánek, Petr Vlach, Tomáš Řepka, Jakub Mózer, Vladimír Hájek, Petr |
author_facet | Fürst, Richard Hejtmánek, Petr Vlach, Tomáš Řepka, Jakub Mózer, Vladimír Hájek, Petr |
author_sort | Fürst, Richard |
collection | PubMed |
description | Textile-reinforced concrete (TRC) is a new composite material comprising high-performance concrete and textile reinforcement from textile yarns with a matrix, usually consisting of epoxy resins (ER). The most significant advantage of ER is the homogenization of all filaments in the yarn and full utilization of its tensile potential. Nevertheless, ER matrix is a critical part of TRC design from the perspective of the fire resistance due to its relatively low resistance at temperatures of approximately 120 °C. This work expands the previously performed mechanical tests at normal temperatures with cement suspension (CS) as a non-combustible material for the yarn matrix. Here, the mechanical properties of CS matrix at elevated temperatures were verified. It was found that the addition of polypropylene fibers into HPC negatively affected the mechanical results of CS matrix specimens. Simultaneously, thermal insulation effect of the covering layers with different thicknesses did not significantly influence the residual bending strength of specimens with CS matrix and achieved similar results as reference specimens. Furthermore, all specimens with ER matrix progressively collapsed. Finally, CS as a textile reinforcement of yarn matrix appears to be a suitable solution for increasing the temperature resistance of TRC structures and for substituting synthetic resins. |
format | Online Article Text |
id | pubmed-9182705 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-91827052022-06-10 Experimental Evaluation of Carbon Reinforced TRC with Cement Suspension Matrix at Elevated Temperature Fürst, Richard Hejtmánek, Petr Vlach, Tomáš Řepka, Jakub Mózer, Vladimír Hájek, Petr Polymers (Basel) Article Textile-reinforced concrete (TRC) is a new composite material comprising high-performance concrete and textile reinforcement from textile yarns with a matrix, usually consisting of epoxy resins (ER). The most significant advantage of ER is the homogenization of all filaments in the yarn and full utilization of its tensile potential. Nevertheless, ER matrix is a critical part of TRC design from the perspective of the fire resistance due to its relatively low resistance at temperatures of approximately 120 °C. This work expands the previously performed mechanical tests at normal temperatures with cement suspension (CS) as a non-combustible material for the yarn matrix. Here, the mechanical properties of CS matrix at elevated temperatures were verified. It was found that the addition of polypropylene fibers into HPC negatively affected the mechanical results of CS matrix specimens. Simultaneously, thermal insulation effect of the covering layers with different thicknesses did not significantly influence the residual bending strength of specimens with CS matrix and achieved similar results as reference specimens. Furthermore, all specimens with ER matrix progressively collapsed. Finally, CS as a textile reinforcement of yarn matrix appears to be a suitable solution for increasing the temperature resistance of TRC structures and for substituting synthetic resins. MDPI 2022-05-27 /pmc/articles/PMC9182705/ /pubmed/35683846 http://dx.doi.org/10.3390/polym14112174 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Fürst, Richard Hejtmánek, Petr Vlach, Tomáš Řepka, Jakub Mózer, Vladimír Hájek, Petr Experimental Evaluation of Carbon Reinforced TRC with Cement Suspension Matrix at Elevated Temperature |
title | Experimental Evaluation of Carbon Reinforced TRC with Cement Suspension Matrix at Elevated Temperature |
title_full | Experimental Evaluation of Carbon Reinforced TRC with Cement Suspension Matrix at Elevated Temperature |
title_fullStr | Experimental Evaluation of Carbon Reinforced TRC with Cement Suspension Matrix at Elevated Temperature |
title_full_unstemmed | Experimental Evaluation of Carbon Reinforced TRC with Cement Suspension Matrix at Elevated Temperature |
title_short | Experimental Evaluation of Carbon Reinforced TRC with Cement Suspension Matrix at Elevated Temperature |
title_sort | experimental evaluation of carbon reinforced trc with cement suspension matrix at elevated temperature |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9182705/ https://www.ncbi.nlm.nih.gov/pubmed/35683846 http://dx.doi.org/10.3390/polym14112174 |
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