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Reinforced Concrete Slabs Strengthened with Carbon Textile Grid and Cementitious Grout
A textile reinforced concrete (TRC) system has been widely used for repair and strengthening of deteriorated reinforced concrete (RC) structures. This paper proposes an accelerated on-site installation method of a TRC system by grouting to strengthen deteriorated RC structures. Four RC slabs were st...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8433900/ https://www.ncbi.nlm.nih.gov/pubmed/34501137 http://dx.doi.org/10.3390/ma14175046 |
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author | Kim, Hyeong-Yeol You, Young-Jun Ryu, Gum-Sung |
author_facet | Kim, Hyeong-Yeol You, Young-Jun Ryu, Gum-Sung |
author_sort | Kim, Hyeong-Yeol |
collection | PubMed |
description | A textile reinforced concrete (TRC) system has been widely used for repair and strengthening of deteriorated reinforced concrete (RC) structures. This paper proposes an accelerated on-site installation method of a TRC system by grouting to strengthen deteriorated RC structures. Four RC slabs were strengthened with one ply of carbon textile grid and 20 mm-thick cementitious grout. The TRC strengthened slab specimens were tested under flexure and the test results were compared with those of an unstrengthened specimen and theoretical solutions. Furthermore, the TRC strengthened specimens experienced longer plastic deformation after steel yield than the unstrengthened specimen. The TRC strengthened specimens exhibited many fine cracks and finally failed by rupture of the textile. Therefore, TRC system with the proposed installation method can effectively be used for strengthening of deteriorated RC structural elements. The theoretically computed steel yield and ultimate loads overestimate the test data by 11% and 5%, respectively. |
format | Online Article Text |
id | pubmed-8433900 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-84339002021-09-12 Reinforced Concrete Slabs Strengthened with Carbon Textile Grid and Cementitious Grout Kim, Hyeong-Yeol You, Young-Jun Ryu, Gum-Sung Materials (Basel) Article A textile reinforced concrete (TRC) system has been widely used for repair and strengthening of deteriorated reinforced concrete (RC) structures. This paper proposes an accelerated on-site installation method of a TRC system by grouting to strengthen deteriorated RC structures. Four RC slabs were strengthened with one ply of carbon textile grid and 20 mm-thick cementitious grout. The TRC strengthened slab specimens were tested under flexure and the test results were compared with those of an unstrengthened specimen and theoretical solutions. Furthermore, the TRC strengthened specimens experienced longer plastic deformation after steel yield than the unstrengthened specimen. The TRC strengthened specimens exhibited many fine cracks and finally failed by rupture of the textile. Therefore, TRC system with the proposed installation method can effectively be used for strengthening of deteriorated RC structural elements. The theoretically computed steel yield and ultimate loads overestimate the test data by 11% and 5%, respectively. MDPI 2021-09-03 /pmc/articles/PMC8433900/ /pubmed/34501137 http://dx.doi.org/10.3390/ma14175046 Text en © 2021 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 Kim, Hyeong-Yeol You, Young-Jun Ryu, Gum-Sung Reinforced Concrete Slabs Strengthened with Carbon Textile Grid and Cementitious Grout |
title | Reinforced Concrete Slabs Strengthened with Carbon Textile Grid and Cementitious Grout |
title_full | Reinforced Concrete Slabs Strengthened with Carbon Textile Grid and Cementitious Grout |
title_fullStr | Reinforced Concrete Slabs Strengthened with Carbon Textile Grid and Cementitious Grout |
title_full_unstemmed | Reinforced Concrete Slabs Strengthened with Carbon Textile Grid and Cementitious Grout |
title_short | Reinforced Concrete Slabs Strengthened with Carbon Textile Grid and Cementitious Grout |
title_sort | reinforced concrete slabs strengthened with carbon textile grid and cementitious grout |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8433900/ https://www.ncbi.nlm.nih.gov/pubmed/34501137 http://dx.doi.org/10.3390/ma14175046 |
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