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Cement-Matrix Composites Using CFRP Waste: A Circular Economy Perspective Using Industrial Symbiosis

This study aims to provide a mitigation strategy for reducing the economic and environmental impacts of carbon fiber wastes deriving from automotive industry. Recycling and reuse in the construction industry is proposed, according to an industrial symbiosis within a circular economy perspective. Spe...

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Autores principales: Vitale, Pierluca, Napolitano, Rosanna, Colella, Francesco, Menna, Costantino, Asprone, Domenico
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8002981/
https://www.ncbi.nlm.nih.gov/pubmed/33803556
http://dx.doi.org/10.3390/ma14061484
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author Vitale, Pierluca
Napolitano, Rosanna
Colella, Francesco
Menna, Costantino
Asprone, Domenico
author_facet Vitale, Pierluca
Napolitano, Rosanna
Colella, Francesco
Menna, Costantino
Asprone, Domenico
author_sort Vitale, Pierluca
collection PubMed
description This study aims to provide a mitigation strategy for reducing the economic and environmental impacts of carbon fiber wastes deriving from automotive industry. Recycling and reuse in the construction industry is proposed, according to an industrial symbiosis within a circular economy perspective. Specifically, the process consists of repurposing carbon fiber reinforced polymer (CFRP) scraps/waste into new cement-matrix composites, for which the resulting benefits, in terms of mechanical and environmental performance, are herein described. An experimental campaign, starting with a specific heat treatment of CFRP sheets and an accurate dimensional distribution analysis of the short carbon fibers, is presented. The influence of the fiber content and length on both the workability and the mechanical performance of cement-based carbon fiber reinforced mortars is also evaluated. A reduced amount of either sand or cement (up to 8% and 12.8% in volume, respectively) is also considered in the mix design of the fiber reinforced mortars and derives from the substitution of the sand or binder with an equivalent volume of CFRP fibers. The results show a satisfactory increase in compressive and flexural strength in the range 10–18% for the samples characterized by a volume fraction of fibers of approximately 4% and having a 2–5 mm length. Finally, a life cycle assessment (LCA, 14040/14044) was carried out to quantify the environmental burden reductions associated with the implementation of the proposed symbiotic scheme.
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spelling pubmed-80029812021-03-28 Cement-Matrix Composites Using CFRP Waste: A Circular Economy Perspective Using Industrial Symbiosis Vitale, Pierluca Napolitano, Rosanna Colella, Francesco Menna, Costantino Asprone, Domenico Materials (Basel) Article This study aims to provide a mitigation strategy for reducing the economic and environmental impacts of carbon fiber wastes deriving from automotive industry. Recycling and reuse in the construction industry is proposed, according to an industrial symbiosis within a circular economy perspective. Specifically, the process consists of repurposing carbon fiber reinforced polymer (CFRP) scraps/waste into new cement-matrix composites, for which the resulting benefits, in terms of mechanical and environmental performance, are herein described. An experimental campaign, starting with a specific heat treatment of CFRP sheets and an accurate dimensional distribution analysis of the short carbon fibers, is presented. The influence of the fiber content and length on both the workability and the mechanical performance of cement-based carbon fiber reinforced mortars is also evaluated. A reduced amount of either sand or cement (up to 8% and 12.8% in volume, respectively) is also considered in the mix design of the fiber reinforced mortars and derives from the substitution of the sand or binder with an equivalent volume of CFRP fibers. The results show a satisfactory increase in compressive and flexural strength in the range 10–18% for the samples characterized by a volume fraction of fibers of approximately 4% and having a 2–5 mm length. Finally, a life cycle assessment (LCA, 14040/14044) was carried out to quantify the environmental burden reductions associated with the implementation of the proposed symbiotic scheme. MDPI 2021-03-18 /pmc/articles/PMC8002981/ /pubmed/33803556 http://dx.doi.org/10.3390/ma14061484 Text en © 2021 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
Vitale, Pierluca
Napolitano, Rosanna
Colella, Francesco
Menna, Costantino
Asprone, Domenico
Cement-Matrix Composites Using CFRP Waste: A Circular Economy Perspective Using Industrial Symbiosis
title Cement-Matrix Composites Using CFRP Waste: A Circular Economy Perspective Using Industrial Symbiosis
title_full Cement-Matrix Composites Using CFRP Waste: A Circular Economy Perspective Using Industrial Symbiosis
title_fullStr Cement-Matrix Composites Using CFRP Waste: A Circular Economy Perspective Using Industrial Symbiosis
title_full_unstemmed Cement-Matrix Composites Using CFRP Waste: A Circular Economy Perspective Using Industrial Symbiosis
title_short Cement-Matrix Composites Using CFRP Waste: A Circular Economy Perspective Using Industrial Symbiosis
title_sort cement-matrix composites using cfrp waste: a circular economy perspective using industrial symbiosis
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8002981/
https://www.ncbi.nlm.nih.gov/pubmed/33803556
http://dx.doi.org/10.3390/ma14061484
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