Comparison of the Mechanical Behavior of Concrete Containing Recycled CFRP Fibers and Polypropylene Fibers

The incorporation of natural or recycled fibers in concrete represents a field for improvement in this structural material and a step towards sustainability. The objective of this research is to determine whether the addition of recycled carbon fibers (CFRP), which have been hardened using epoxy res...

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Autores principales:	María Isabel Prieto, María de las Nieves González, Alfonso Cobo, David Alonso
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	recycled CFRP fibers polypropylene fibers concrete compression flexural impact Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/f36b0ca6033a4311895f5bdbbc11db38
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spelling	oai:doaj.org-article:f36b0ca6033a4311895f5bdbbc11db382021-11-11T15:16:25ZComparison of the Mechanical Behavior of Concrete Containing Recycled CFRP Fibers and Polypropylene Fibers10.3390/app1121102262076-3417https://doaj.org/article/f36b0ca6033a4311895f5bdbbc11db382021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/21/10226https://doaj.org/toc/2076-3417The incorporation of natural or recycled fibers in concrete represents a field for improvement in this structural material and a step towards sustainability. The objective of this research is to determine whether the addition of recycled carbon fibers (CFRP), which have been hardened using epoxy resin, improves the behavior of concrete and whether its performance is comparable to that achieved by adding polypropylene fibers, which would result in a viable recycling alternative for this type of fiber. In order to explore this objective, 120 specimens were produced, on which compression, flexural, and impact tests were performed, and into which recycled CFRP fibers or polypropylene fibers were incorporated. By comparing the results obtained, it may be concluded that the addition of fibers substantially improves the ductility of the concrete and reduces the spalling effect when compared to concretes without added fibers. The concretes containing recycled CFRP fibers in quantities of 3 kg/m<sup>3</sup> and 6 kg/m<sup>3</sup> obtain better flexural and impact behaviors than concretes featuring the same amounts of polypropylene fibers, making this recycling alternative viable for CFRP fibers as well as reducing the amount of energy and raw materials that would be used to manufacture the fibers.María Isabel PrietoMaría de las Nieves GonzálezAlfonso CoboDavid AlonsoMDPI AGarticlerecycled CFRP fiberspolypropylene fibersconcretecompressionflexuralimpactTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10226, p 10226 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	recycled CFRP fibers polypropylene fibers concrete compression flexural impact Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	recycled CFRP fibers polypropylene fibers concrete compression flexural impact Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 María Isabel Prieto María de las Nieves González Alfonso Cobo David Alonso Comparison of the Mechanical Behavior of Concrete Containing Recycled CFRP Fibers and Polypropylene Fibers
description	The incorporation of natural or recycled fibers in concrete represents a field for improvement in this structural material and a step towards sustainability. The objective of this research is to determine whether the addition of recycled carbon fibers (CFRP), which have been hardened using epoxy resin, improves the behavior of concrete and whether its performance is comparable to that achieved by adding polypropylene fibers, which would result in a viable recycling alternative for this type of fiber. In order to explore this objective, 120 specimens were produced, on which compression, flexural, and impact tests were performed, and into which recycled CFRP fibers or polypropylene fibers were incorporated. By comparing the results obtained, it may be concluded that the addition of fibers substantially improves the ductility of the concrete and reduces the spalling effect when compared to concretes without added fibers. The concretes containing recycled CFRP fibers in quantities of 3 kg/m<sup>3</sup> and 6 kg/m<sup>3</sup> obtain better flexural and impact behaviors than concretes featuring the same amounts of polypropylene fibers, making this recycling alternative viable for CFRP fibers as well as reducing the amount of energy and raw materials that would be used to manufacture the fibers.
format	article
author	María Isabel Prieto María de las Nieves González Alfonso Cobo David Alonso
author_facet	María Isabel Prieto María de las Nieves González Alfonso Cobo David Alonso
author_sort	María Isabel Prieto
title	Comparison of the Mechanical Behavior of Concrete Containing Recycled CFRP Fibers and Polypropylene Fibers
title_short	Comparison of the Mechanical Behavior of Concrete Containing Recycled CFRP Fibers and Polypropylene Fibers
title_full	Comparison of the Mechanical Behavior of Concrete Containing Recycled CFRP Fibers and Polypropylene Fibers
title_fullStr	Comparison of the Mechanical Behavior of Concrete Containing Recycled CFRP Fibers and Polypropylene Fibers
title_full_unstemmed	Comparison of the Mechanical Behavior of Concrete Containing Recycled CFRP Fibers and Polypropylene Fibers
title_sort	comparison of the mechanical behavior of concrete containing recycled cfrp fibers and polypropylene fibers
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/f36b0ca6033a4311895f5bdbbc11db38
work_keys_str_mv	AT mariaisabelprieto comparisonofthemechanicalbehaviorofconcretecontainingrecycledcfrpfibersandpolypropylenefibers AT mariadelasnievesgonzalez comparisonofthemechanicalbehaviorofconcretecontainingrecycledcfrpfibersandpolypropylenefibers AT alfonsocobo comparisonofthemechanicalbehaviorofconcretecontainingrecycledcfrpfibersandpolypropylenefibers AT davidalonso comparisonofthemechanicalbehaviorofconcretecontainingrecycledcfrpfibersandpolypropylenefibers
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Comparison of the Mechanical Behavior of Concrete Containing Recycled CFRP Fibers and Polypropylene Fibers

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