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Lower Carbon Footprint Concrete Using Recycled Carbon Fiber for Targeted Strength and Insulation
The production of concrete leads to substantial carbon emissions (~8%) and includes reinforcing steel which is prone to corrosion and durability issues. Carbon-fiber-reinforced concrete is attractive for structural applications due to its light weight, high modulus, high strength, low density, and r...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10420308/ https://www.ncbi.nlm.nih.gov/pubmed/37570158 http://dx.doi.org/10.3390/ma16155451 |
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author | Patchen, Andrew Young, Stephen Goodbred, Logan Puplampu, Stephen Chawla, Vivek Penumadu, Dayakar |
author_facet | Patchen, Andrew Young, Stephen Goodbred, Logan Puplampu, Stephen Chawla, Vivek Penumadu, Dayakar |
author_sort | Patchen, Andrew |
collection | PubMed |
description | The production of concrete leads to substantial carbon emissions (~8%) and includes reinforcing steel which is prone to corrosion and durability issues. Carbon-fiber-reinforced concrete is attractive for structural applications due to its light weight, high modulus, high strength, low density, and resistance to environmental degradation. Recycled/repurposed carbon fiber (rCF) is a promising alternative to traditional steel-fiber reinforcement for manufacturing lightweight and high-strength concrete. Additionally, rCF offers a sustainable, economical, and less energy-intensive solution for infrastructure applications. In this paper, structure–process–property relationships between the rheology of mix design, carbon fiber reinforcement type, thermal conductivity, and microstructural properties are investigated targeting strength and lighter weight using three types of concretes, namely, high-strength concrete, structural lightweight concrete, and ultra-lightweight concrete. The concrete mix designs were evaluated non-destructively using high-resolution X-ray computed tomography to investigate the microstructure of the voids and spatially correlate the porosity with the thermal conductivity properties and mechanical performance. Reinforced concrete structures with steel often suffer from durability issues due to corrosion. This paper presents advancements towards realizing concrete structures without steel reinforcement by providing required compression, adequate tension, flexural, and shear properties from recycled/repurposed carbon fibers and substantially reducing the carbon footprint for thermal and/or structural applications. |
format | Online Article Text |
id | pubmed-10420308 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-104203082023-08-12 Lower Carbon Footprint Concrete Using Recycled Carbon Fiber for Targeted Strength and Insulation Patchen, Andrew Young, Stephen Goodbred, Logan Puplampu, Stephen Chawla, Vivek Penumadu, Dayakar Materials (Basel) Article The production of concrete leads to substantial carbon emissions (~8%) and includes reinforcing steel which is prone to corrosion and durability issues. Carbon-fiber-reinforced concrete is attractive for structural applications due to its light weight, high modulus, high strength, low density, and resistance to environmental degradation. Recycled/repurposed carbon fiber (rCF) is a promising alternative to traditional steel-fiber reinforcement for manufacturing lightweight and high-strength concrete. Additionally, rCF offers a sustainable, economical, and less energy-intensive solution for infrastructure applications. In this paper, structure–process–property relationships between the rheology of mix design, carbon fiber reinforcement type, thermal conductivity, and microstructural properties are investigated targeting strength and lighter weight using three types of concretes, namely, high-strength concrete, structural lightweight concrete, and ultra-lightweight concrete. The concrete mix designs were evaluated non-destructively using high-resolution X-ray computed tomography to investigate the microstructure of the voids and spatially correlate the porosity with the thermal conductivity properties and mechanical performance. Reinforced concrete structures with steel often suffer from durability issues due to corrosion. This paper presents advancements towards realizing concrete structures without steel reinforcement by providing required compression, adequate tension, flexural, and shear properties from recycled/repurposed carbon fibers and substantially reducing the carbon footprint for thermal and/or structural applications. MDPI 2023-08-03 /pmc/articles/PMC10420308/ /pubmed/37570158 http://dx.doi.org/10.3390/ma16155451 Text en © 2023 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 Patchen, Andrew Young, Stephen Goodbred, Logan Puplampu, Stephen Chawla, Vivek Penumadu, Dayakar Lower Carbon Footprint Concrete Using Recycled Carbon Fiber for Targeted Strength and Insulation |
title | Lower Carbon Footprint Concrete Using Recycled Carbon Fiber for Targeted Strength and Insulation |
title_full | Lower Carbon Footprint Concrete Using Recycled Carbon Fiber for Targeted Strength and Insulation |
title_fullStr | Lower Carbon Footprint Concrete Using Recycled Carbon Fiber for Targeted Strength and Insulation |
title_full_unstemmed | Lower Carbon Footprint Concrete Using Recycled Carbon Fiber for Targeted Strength and Insulation |
title_short | Lower Carbon Footprint Concrete Using Recycled Carbon Fiber for Targeted Strength and Insulation |
title_sort | lower carbon footprint concrete using recycled carbon fiber for targeted strength and insulation |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10420308/ https://www.ncbi.nlm.nih.gov/pubmed/37570158 http://dx.doi.org/10.3390/ma16155451 |
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