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Pullout Behavior of Bundled Aramid Fiber in Fiber-Reinforced Cementitious Composite
The tensile performance of fiber-reinforced cementitious composite (FRCC) after first matrix cracking is characterized by a tensile stress–crack width relationship called the bridging law. The bridging law can be obtained by an integral calculus of forces carried by individual bridging fibers consid...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7179034/ https://www.ncbi.nlm.nih.gov/pubmed/32283612 http://dx.doi.org/10.3390/ma13071746 |
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author | Kanakubo, Toshiyuki Echizen, Saki Wang, Jin Mu, Yu |
author_facet | Kanakubo, Toshiyuki Echizen, Saki Wang, Jin Mu, Yu |
author_sort | Kanakubo, Toshiyuki |
collection | PubMed |
description | The tensile performance of fiber-reinforced cementitious composite (FRCC) after first matrix cracking is characterized by a tensile stress–crack width relationship called the bridging law. The bridging law can be obtained by an integral calculus of forces carried by individual bridging fibers considering the effect of the fiber inclination angle. The main objective of this study is to investigate experimentally and evaluate the pullout behavior of a single aramid fiber, which is made with a bundling of original yarns of aramid fiber. The bundled aramid fiber has a nonsmooth surface, and it is expected to have good bond performance with the matrix. The test variables in the pullout test are the thickness of the matrix and the inclined angle of the fiber. From the test results, the pullout load–slip curves showed that the load increases lineally until maximum load, after which it decreases gradually. The maximum pullout load and slip at the maximum load increase as the embedded length of the fiber becomes larger. The pullout load–crack width relationship is modeled by a bilinear model, and the bridging law is calculated. The calculated result shows good agreement with the experimental curves obtained by the uniaxial tension test of aramid–FRCC. |
format | Online Article Text |
id | pubmed-7179034 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-71790342020-04-28 Pullout Behavior of Bundled Aramid Fiber in Fiber-Reinforced Cementitious Composite Kanakubo, Toshiyuki Echizen, Saki Wang, Jin Mu, Yu Materials (Basel) Article The tensile performance of fiber-reinforced cementitious composite (FRCC) after first matrix cracking is characterized by a tensile stress–crack width relationship called the bridging law. The bridging law can be obtained by an integral calculus of forces carried by individual bridging fibers considering the effect of the fiber inclination angle. The main objective of this study is to investigate experimentally and evaluate the pullout behavior of a single aramid fiber, which is made with a bundling of original yarns of aramid fiber. The bundled aramid fiber has a nonsmooth surface, and it is expected to have good bond performance with the matrix. The test variables in the pullout test are the thickness of the matrix and the inclined angle of the fiber. From the test results, the pullout load–slip curves showed that the load increases lineally until maximum load, after which it decreases gradually. The maximum pullout load and slip at the maximum load increase as the embedded length of the fiber becomes larger. The pullout load–crack width relationship is modeled by a bilinear model, and the bridging law is calculated. The calculated result shows good agreement with the experimental curves obtained by the uniaxial tension test of aramid–FRCC. MDPI 2020-04-09 /pmc/articles/PMC7179034/ /pubmed/32283612 http://dx.doi.org/10.3390/ma13071746 Text en © 2020 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Kanakubo, Toshiyuki Echizen, Saki Wang, Jin Mu, Yu Pullout Behavior of Bundled Aramid Fiber in Fiber-Reinforced Cementitious Composite |
title | Pullout Behavior of Bundled Aramid Fiber in Fiber-Reinforced Cementitious Composite |
title_full | Pullout Behavior of Bundled Aramid Fiber in Fiber-Reinforced Cementitious Composite |
title_fullStr | Pullout Behavior of Bundled Aramid Fiber in Fiber-Reinforced Cementitious Composite |
title_full_unstemmed | Pullout Behavior of Bundled Aramid Fiber in Fiber-Reinforced Cementitious Composite |
title_short | Pullout Behavior of Bundled Aramid Fiber in Fiber-Reinforced Cementitious Composite |
title_sort | pullout behavior of bundled aramid fiber in fiber-reinforced cementitious composite |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7179034/ https://www.ncbi.nlm.nih.gov/pubmed/32283612 http://dx.doi.org/10.3390/ma13071746 |
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