Tensile Experiments and Numerical Analysis of Textile-Reinforced Lightweight Engineered Cementitious Composites
Despite many cases of textile-reinforced engineered cementitious composites (TR-ECCs) for repairing and strengthening concrete structures in the literature, research on lightweight engineered cementitious composites (LECC) combined with large rupture strain (LRS) textile and the effect of textile ar...
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MDPI AG
2022-08-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/16/5494 |
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| author | Mingzhao Chen Xudong Deng Rongxin Guo Chaoshu Fu Jiuchang Zhang |
| author_facet | Mingzhao Chen Xudong Deng Rongxin Guo Chaoshu Fu Jiuchang Zhang |
| author_sort | Mingzhao Chen |
| collection | DOAJ |
| description | Despite many cases of textile-reinforced engineered cementitious composites (TR-ECCs) for repairing and strengthening concrete structures in the literature, research on lightweight engineered cementitious composites (LECC) combined with large rupture strain (LRS) textile and the effect of textile arrangement on tensile properties is still lacking. Therefore, this paper develops textile-reinforced lightweight engineered cementitious composites (TR-LECCs) with high strain characteristics through reinforcement ratio, arrangement form, and textile type. The study revealed that, by combining an LRS polypropylene (PP) textile and LECC, TR-LECCs with an ultimate strain of more than 8.0% (3–4 times that of traditional TR-ECCs) could be developed, and the PP textile’s utilization rate seemed insensitive to the enhancement rate. The basalt fiber-reinforced polymer (BFRP) textile without epoxy resin coating had no noticeable reinforcement effect because of bond slip; in contrast, the BFRP grid with epoxy resin coating had an apparent improvement in bond performance with the matrix and a better reinforcement effect. The finite element method (FEM) verified that a concentrated arrangement increased the stress concentration in the TR-LECC, as well as the stress value. In contrast, a multilayer arrangement enabled uniform distribution of the stress value and revealed that the weft yarn could help the warp yarn to bear additional tensile loads. |
| first_indexed | 2024-03-09T09:54:39Z |
| format | Article |
| id | doaj.art-b90630f06e7b42139e8e64b0a13bd82a |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T09:54:39Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-b90630f06e7b42139e8e64b0a13bd82a2023-12-01T23:55:07ZengMDPI AGMaterials1996-19442022-08-011516549410.3390/ma15165494Tensile Experiments and Numerical Analysis of Textile-Reinforced Lightweight Engineered Cementitious CompositesMingzhao Chen0Xudong Deng1Rongxin Guo2Chaoshu Fu3Jiuchang Zhang4Yunnan Key Laboratory of Disaster Reduction in Civil Engineering, Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming 650500, ChinaYunnan Key Laboratory of Disaster Reduction in Civil Engineering, Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming 650500, ChinaYunnan Key Laboratory of Disaster Reduction in Civil Engineering, Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming 650500, ChinaYunnan Key Laboratory of Disaster Reduction in Civil Engineering, Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming 650500, ChinaYunnan Key Laboratory of Disaster Reduction in Civil Engineering, Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming 650500, ChinaDespite many cases of textile-reinforced engineered cementitious composites (TR-ECCs) for repairing and strengthening concrete structures in the literature, research on lightweight engineered cementitious composites (LECC) combined with large rupture strain (LRS) textile and the effect of textile arrangement on tensile properties is still lacking. Therefore, this paper develops textile-reinforced lightweight engineered cementitious composites (TR-LECCs) with high strain characteristics through reinforcement ratio, arrangement form, and textile type. The study revealed that, by combining an LRS polypropylene (PP) textile and LECC, TR-LECCs with an ultimate strain of more than 8.0% (3–4 times that of traditional TR-ECCs) could be developed, and the PP textile’s utilization rate seemed insensitive to the enhancement rate. The basalt fiber-reinforced polymer (BFRP) textile without epoxy resin coating had no noticeable reinforcement effect because of bond slip; in contrast, the BFRP grid with epoxy resin coating had an apparent improvement in bond performance with the matrix and a better reinforcement effect. The finite element method (FEM) verified that a concentrated arrangement increased the stress concentration in the TR-LECC, as well as the stress value. In contrast, a multilayer arrangement enabled uniform distribution of the stress value and revealed that the weft yarn could help the warp yarn to bear additional tensile loads.https://www.mdpi.com/1996-1944/15/16/5494fiber-reinforced polymerlightweight engineered cementitious compositesnumerical analysistextile gridrepair and reinforcement |
| spellingShingle | Mingzhao Chen Xudong Deng Rongxin Guo Chaoshu Fu Jiuchang Zhang Tensile Experiments and Numerical Analysis of Textile-Reinforced Lightweight Engineered Cementitious Composites Materials fiber-reinforced polymer lightweight engineered cementitious composites numerical analysis textile grid repair and reinforcement |
| title | Tensile Experiments and Numerical Analysis of Textile-Reinforced Lightweight Engineered Cementitious Composites |
| title_full | Tensile Experiments and Numerical Analysis of Textile-Reinforced Lightweight Engineered Cementitious Composites |
| title_fullStr | Tensile Experiments and Numerical Analysis of Textile-Reinforced Lightweight Engineered Cementitious Composites |
| title_full_unstemmed | Tensile Experiments and Numerical Analysis of Textile-Reinforced Lightweight Engineered Cementitious Composites |
| title_short | Tensile Experiments and Numerical Analysis of Textile-Reinforced Lightweight Engineered Cementitious Composites |
| title_sort | tensile experiments and numerical analysis of textile reinforced lightweight engineered cementitious composites |
| topic | fiber-reinforced polymer lightweight engineered cementitious composites numerical analysis textile grid repair and reinforcement |
| url | https://www.mdpi.com/1996-1944/15/16/5494 |
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