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Concrete with a High Content of End-of-Life Tire Materials for Flexural Strengthening of Reinforced Concrete Structures

This research investigates the performance of Steel Fiber Reinforced Rubberized Concrete (SFRRC) that incorporates high volumes of End-of-life tire materials, (i.e., both rubber particles and recycled tire steel fibers) in strengthening existing reinforced concrete (RC) beams. The mechanical and dur...

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Autores principales: Polydorou, Thomaida, Kyriakides, Nicholas, Lampropoulos, Andreas, Neocleous, Kyriacos, Votsis, Renos, Tsioulou, Ourania, Pilakoutas, Kypros, Hadjimitsis, Diofantos G.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9457986/
https://www.ncbi.nlm.nih.gov/pubmed/36079531
http://dx.doi.org/10.3390/ma15176150
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author Polydorou, Thomaida
Kyriakides, Nicholas
Lampropoulos, Andreas
Neocleous, Kyriacos
Votsis, Renos
Tsioulou, Ourania
Pilakoutas, Kypros
Hadjimitsis, Diofantos G.
author_facet Polydorou, Thomaida
Kyriakides, Nicholas
Lampropoulos, Andreas
Neocleous, Kyriacos
Votsis, Renos
Tsioulou, Ourania
Pilakoutas, Kypros
Hadjimitsis, Diofantos G.
author_sort Polydorou, Thomaida
collection PubMed
description This research investigates the performance of Steel Fiber Reinforced Rubberized Concrete (SFRRC) that incorporates high volumes of End-of-life tire materials, (i.e., both rubber particles and recycled tire steel fibers) in strengthening existing reinforced concrete (RC) beams. The mechanical and durability properties were determined for an environmentally friendly SFRRC mixture that incorporates a large volume (60% by volume aggregate replacement) of rubber particles and is solely reinforced by recycled tire steel fibers. The material was assessed experimentally under flexural, compressive and impact loading, and thus results led to the development of a numerical model using the Finite Element Method. Furthermore, a numerical study on full-scale structural members was conducted, focusing on conventional RC beams strengthened with SFRRC layers. This research presents the first study where SFRRC is examined for structural strengthening of existing RC beams, aiming to enable the use of such novel materials in structural applications. The results were compared to respective results of beams strengthened with conventional RC layers. The study reveals that incorporation of End-of-life tire materials in concrete not only serves the purpose of recycling End-of-life tire products, but can also contribute to unique properties such as energy dissipation not attained by conventional concrete and therefore leading to superior performance as flexural strengthening material. It was found that by incorporating 60% by volume rubber particles in combination with recycled steel fibers, it increased the damping ratio of concrete by 75.4%. Furthermore, SFRRC was proven effective in enhancing the energy dissipation of existing structural members.
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spelling pubmed-94579862022-09-09 Concrete with a High Content of End-of-Life Tire Materials for Flexural Strengthening of Reinforced Concrete Structures Polydorou, Thomaida Kyriakides, Nicholas Lampropoulos, Andreas Neocleous, Kyriacos Votsis, Renos Tsioulou, Ourania Pilakoutas, Kypros Hadjimitsis, Diofantos G. Materials (Basel) Article This research investigates the performance of Steel Fiber Reinforced Rubberized Concrete (SFRRC) that incorporates high volumes of End-of-life tire materials, (i.e., both rubber particles and recycled tire steel fibers) in strengthening existing reinforced concrete (RC) beams. The mechanical and durability properties were determined for an environmentally friendly SFRRC mixture that incorporates a large volume (60% by volume aggregate replacement) of rubber particles and is solely reinforced by recycled tire steel fibers. The material was assessed experimentally under flexural, compressive and impact loading, and thus results led to the development of a numerical model using the Finite Element Method. Furthermore, a numerical study on full-scale structural members was conducted, focusing on conventional RC beams strengthened with SFRRC layers. This research presents the first study where SFRRC is examined for structural strengthening of existing RC beams, aiming to enable the use of such novel materials in structural applications. The results were compared to respective results of beams strengthened with conventional RC layers. The study reveals that incorporation of End-of-life tire materials in concrete not only serves the purpose of recycling End-of-life tire products, but can also contribute to unique properties such as energy dissipation not attained by conventional concrete and therefore leading to superior performance as flexural strengthening material. It was found that by incorporating 60% by volume rubber particles in combination with recycled steel fibers, it increased the damping ratio of concrete by 75.4%. Furthermore, SFRRC was proven effective in enhancing the energy dissipation of existing structural members. MDPI 2022-09-05 /pmc/articles/PMC9457986/ /pubmed/36079531 http://dx.doi.org/10.3390/ma15176150 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
Polydorou, Thomaida
Kyriakides, Nicholas
Lampropoulos, Andreas
Neocleous, Kyriacos
Votsis, Renos
Tsioulou, Ourania
Pilakoutas, Kypros
Hadjimitsis, Diofantos G.
Concrete with a High Content of End-of-Life Tire Materials for Flexural Strengthening of Reinforced Concrete Structures
title Concrete with a High Content of End-of-Life Tire Materials for Flexural Strengthening of Reinforced Concrete Structures
title_full Concrete with a High Content of End-of-Life Tire Materials for Flexural Strengthening of Reinforced Concrete Structures
title_fullStr Concrete with a High Content of End-of-Life Tire Materials for Flexural Strengthening of Reinforced Concrete Structures
title_full_unstemmed Concrete with a High Content of End-of-Life Tire Materials for Flexural Strengthening of Reinforced Concrete Structures
title_short Concrete with a High Content of End-of-Life Tire Materials for Flexural Strengthening of Reinforced Concrete Structures
title_sort concrete with a high content of end-of-life tire materials for flexural strengthening of reinforced concrete structures
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9457986/
https://www.ncbi.nlm.nih.gov/pubmed/36079531
http://dx.doi.org/10.3390/ma15176150
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