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Mechanical Properties of Aramid/Carbon Hybrid Fiber-Reinforced Concrete
In this study, aramid fiber (Kevlar(®) 29 fiber) and carbon fiber were added into concrete in a hybrid manner to enhance the static and impact mechanical properties. The coupling agent presence on the surface of carbon fibers was spotted in Scanning Electron Microscope (SEM) and energy-dispersive X-...
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/PMC8510375/ https://www.ncbi.nlm.nih.gov/pubmed/34640278 http://dx.doi.org/10.3390/ma14195881 |
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author | Li, Yeou-Fong Wang, Hsin-Fu Syu, Jin-Yuan Ramanathan, Gobinathan Kadagathur Tsai, Ying-Kuan Lok, Man Hoi |
author_facet | Li, Yeou-Fong Wang, Hsin-Fu Syu, Jin-Yuan Ramanathan, Gobinathan Kadagathur Tsai, Ying-Kuan Lok, Man Hoi |
author_sort | Li, Yeou-Fong |
collection | PubMed |
description | In this study, aramid fiber (Kevlar(®) 29 fiber) and carbon fiber were added into concrete in a hybrid manner to enhance the static and impact mechanical properties. The coupling agent presence on the surface of carbon fibers was spotted in Scanning Electron Microscope (SEM) and energy-dispersive X-ray spectroscopy (EDS) graphs. The carbon fiber with a coupling agent affected the mechanical strength of the reinforced concrete. At 1% fiber/cement weight percentage, the hybrid fiber-reinforced concrete (HFRC) prepared using Kevlar fiber and carbon fiber of 12 and 24 mm in length under different mix proportions was investigated to determine the maximum mechanical strengths. From the test results, the mechanical strength of the HFRC attained better performance than that of the concrete with only Kevlar or carbon fibers. Foremost, the mix proportion of Kevlar/carbon fiber (50–50%) significantly improved the compressive, flexural, and splitting tensile strengths. Under different impact energies, the impact resistance of the HFRC specimen was much higher than that of the benchmark specimen, and the damage of the HFRC specimens was examined with an optical microscope to identify slippage or rupture failure of the fiber in concrete. |
format | Online Article Text |
id | pubmed-8510375 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-85103752021-10-13 Mechanical Properties of Aramid/Carbon Hybrid Fiber-Reinforced Concrete Li, Yeou-Fong Wang, Hsin-Fu Syu, Jin-Yuan Ramanathan, Gobinathan Kadagathur Tsai, Ying-Kuan Lok, Man Hoi Materials (Basel) Article In this study, aramid fiber (Kevlar(®) 29 fiber) and carbon fiber were added into concrete in a hybrid manner to enhance the static and impact mechanical properties. The coupling agent presence on the surface of carbon fibers was spotted in Scanning Electron Microscope (SEM) and energy-dispersive X-ray spectroscopy (EDS) graphs. The carbon fiber with a coupling agent affected the mechanical strength of the reinforced concrete. At 1% fiber/cement weight percentage, the hybrid fiber-reinforced concrete (HFRC) prepared using Kevlar fiber and carbon fiber of 12 and 24 mm in length under different mix proportions was investigated to determine the maximum mechanical strengths. From the test results, the mechanical strength of the HFRC attained better performance than that of the concrete with only Kevlar or carbon fibers. Foremost, the mix proportion of Kevlar/carbon fiber (50–50%) significantly improved the compressive, flexural, and splitting tensile strengths. Under different impact energies, the impact resistance of the HFRC specimen was much higher than that of the benchmark specimen, and the damage of the HFRC specimens was examined with an optical microscope to identify slippage or rupture failure of the fiber in concrete. MDPI 2021-10-08 /pmc/articles/PMC8510375/ /pubmed/34640278 http://dx.doi.org/10.3390/ma14195881 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 Li, Yeou-Fong Wang, Hsin-Fu Syu, Jin-Yuan Ramanathan, Gobinathan Kadagathur Tsai, Ying-Kuan Lok, Man Hoi Mechanical Properties of Aramid/Carbon Hybrid Fiber-Reinforced Concrete |
title | Mechanical Properties of Aramid/Carbon Hybrid Fiber-Reinforced Concrete |
title_full | Mechanical Properties of Aramid/Carbon Hybrid Fiber-Reinforced Concrete |
title_fullStr | Mechanical Properties of Aramid/Carbon Hybrid Fiber-Reinforced Concrete |
title_full_unstemmed | Mechanical Properties of Aramid/Carbon Hybrid Fiber-Reinforced Concrete |
title_short | Mechanical Properties of Aramid/Carbon Hybrid Fiber-Reinforced Concrete |
title_sort | mechanical properties of aramid/carbon hybrid fiber-reinforced concrete |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8510375/ https://www.ncbi.nlm.nih.gov/pubmed/34640278 http://dx.doi.org/10.3390/ma14195881 |
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