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Investigation of CFRP Reinforcement Ratio on the Flexural Capacity and Failure Mode of Plain Concrete Prisms

The utilization of carbon-fiber-reinforced polymer (CFRP) composites as strengthening materials for structural components has become quite famous over the last couple of decades. The present experimental study was carried out to examine the effect of varied widths of externally bonded CFRP on the de...

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Autores principales: Qureshi, Hisham Jahangir, Saleem, Muhammad Umair, Khurram, Nauman, Ahmad, Jawad, Amin, Muhammad Nasir, Khan, Kaffayatullah, Aslam, Fahid, Al Fuhaid, Abdulrahman Fahad, Arifuzzaman, Md
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9608264/
https://www.ncbi.nlm.nih.gov/pubmed/36295312
http://dx.doi.org/10.3390/ma15207248
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author Qureshi, Hisham Jahangir
Saleem, Muhammad Umair
Khurram, Nauman
Ahmad, Jawad
Amin, Muhammad Nasir
Khan, Kaffayatullah
Aslam, Fahid
Al Fuhaid, Abdulrahman Fahad
Arifuzzaman, Md
author_facet Qureshi, Hisham Jahangir
Saleem, Muhammad Umair
Khurram, Nauman
Ahmad, Jawad
Amin, Muhammad Nasir
Khan, Kaffayatullah
Aslam, Fahid
Al Fuhaid, Abdulrahman Fahad
Arifuzzaman, Md
author_sort Qureshi, Hisham Jahangir
collection PubMed
description The utilization of carbon-fiber-reinforced polymer (CFRP) composites as strengthening materials for structural components has become quite famous over the last couple of decades. The present experimental study was carried out to examine the effect of varied widths of externally bonded CFRP on the debonding strain of CFRP and the failure mode of plain concrete beams. Twelve plain concrete prims measuring 100 mm × 100 mm × 500 mm were cast and tested under identical loading conditions. The twelve specimens include two control prisms, i.e., without CFRP strips, and the remaining ten prisms were reinforced with CFRP strips with widths of 10 mm, 20 mm, 30 mm, 40 mm, and 50 mm, respectively, i.e., two prisms in each group. Four-point loading flexural testing was carried out, and the resulting data are presented in the form of peak load vs. midpoint displacement, load vs. concrete strain, and load vs. CFRP strain. The peak load was directly recorded from the testing machine, while the midpoint deflection was recorded through the linear variable differential transducer (LVDT) installed at the midpoint. To measure the strain, two separate strain gauges were installed at the bottom of each concrete prism, i.e., one on the concrete surface and the other on the surface of the CFRP strip. The results of this study indicate that the debonding strain is a function of CFRP strip width and that the failure patterns of beams are significantly affected by the CFRP reinforcement ratio.
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spelling pubmed-96082642022-10-28 Investigation of CFRP Reinforcement Ratio on the Flexural Capacity and Failure Mode of Plain Concrete Prisms Qureshi, Hisham Jahangir Saleem, Muhammad Umair Khurram, Nauman Ahmad, Jawad Amin, Muhammad Nasir Khan, Kaffayatullah Aslam, Fahid Al Fuhaid, Abdulrahman Fahad Arifuzzaman, Md Materials (Basel) Article The utilization of carbon-fiber-reinforced polymer (CFRP) composites as strengthening materials for structural components has become quite famous over the last couple of decades. The present experimental study was carried out to examine the effect of varied widths of externally bonded CFRP on the debonding strain of CFRP and the failure mode of plain concrete beams. Twelve plain concrete prims measuring 100 mm × 100 mm × 500 mm were cast and tested under identical loading conditions. The twelve specimens include two control prisms, i.e., without CFRP strips, and the remaining ten prisms were reinforced with CFRP strips with widths of 10 mm, 20 mm, 30 mm, 40 mm, and 50 mm, respectively, i.e., two prisms in each group. Four-point loading flexural testing was carried out, and the resulting data are presented in the form of peak load vs. midpoint displacement, load vs. concrete strain, and load vs. CFRP strain. The peak load was directly recorded from the testing machine, while the midpoint deflection was recorded through the linear variable differential transducer (LVDT) installed at the midpoint. To measure the strain, two separate strain gauges were installed at the bottom of each concrete prism, i.e., one on the concrete surface and the other on the surface of the CFRP strip. The results of this study indicate that the debonding strain is a function of CFRP strip width and that the failure patterns of beams are significantly affected by the CFRP reinforcement ratio. MDPI 2022-10-17 /pmc/articles/PMC9608264/ /pubmed/36295312 http://dx.doi.org/10.3390/ma15207248 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
Qureshi, Hisham Jahangir
Saleem, Muhammad Umair
Khurram, Nauman
Ahmad, Jawad
Amin, Muhammad Nasir
Khan, Kaffayatullah
Aslam, Fahid
Al Fuhaid, Abdulrahman Fahad
Arifuzzaman, Md
Investigation of CFRP Reinforcement Ratio on the Flexural Capacity and Failure Mode of Plain Concrete Prisms
title Investigation of CFRP Reinforcement Ratio on the Flexural Capacity and Failure Mode of Plain Concrete Prisms
title_full Investigation of CFRP Reinforcement Ratio on the Flexural Capacity and Failure Mode of Plain Concrete Prisms
title_fullStr Investigation of CFRP Reinforcement Ratio on the Flexural Capacity and Failure Mode of Plain Concrete Prisms
title_full_unstemmed Investigation of CFRP Reinforcement Ratio on the Flexural Capacity and Failure Mode of Plain Concrete Prisms
title_short Investigation of CFRP Reinforcement Ratio on the Flexural Capacity and Failure Mode of Plain Concrete Prisms
title_sort investigation of cfrp reinforcement ratio on the flexural capacity and failure mode of plain concrete prisms
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9608264/
https://www.ncbi.nlm.nih.gov/pubmed/36295312
http://dx.doi.org/10.3390/ma15207248
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