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Recycled PET Sand for Cementitious Mortar

Cementitious materials cause a great impact on the environment due to the calcination of clinker and the extraction of non-renewable mineral resources. In this work, the replacement of quartz sand from the river by PET sand was evaluated at levels of 10%, 20%, and 30%. Tests were performed in the fr...

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Autores principales: Campanhão, Angélica Faria, Marvila, Markssuel Teixeira, de Azevedo, Afonso R. G., da Silva, Tulane Rodrigues, Fediuk, Roman, Vatin, Nikolai
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8745950/
https://www.ncbi.nlm.nih.gov/pubmed/35009419
http://dx.doi.org/10.3390/ma15010273
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author Campanhão, Angélica Faria
Marvila, Markssuel Teixeira
de Azevedo, Afonso R. G.
da Silva, Tulane Rodrigues
Fediuk, Roman
Vatin, Nikolai
author_facet Campanhão, Angélica Faria
Marvila, Markssuel Teixeira
de Azevedo, Afonso R. G.
da Silva, Tulane Rodrigues
Fediuk, Roman
Vatin, Nikolai
author_sort Campanhão, Angélica Faria
collection PubMed
description Cementitious materials cause a great impact on the environment due to the calcination of clinker and the extraction of non-renewable mineral resources. In this work, the replacement of quartz sand from the river by PET sand was evaluated at levels of 10%, 20%, and 30%. Tests were performed in the fresh state through consistency, air retention, density, and incorporated air and in the hardened state for compressive strength, flexural strength, density, capillarity, and water absorption. The results show that PET sand is viable in contents of up to 10%, improving the mechanical properties of the mortar and without compromising its workability and incorporated air properties. Above that level, the loss of properties is very excessive, mainly of workability and incorporated air. The incorporated air of the 30% composition, for example, reaches 24%, an excessive value that impacts the properties of the hardened state, making it impossible to use the material at levels greater than 20%. It is concluded that the use of recycled PET sand is a possibility that contributes to sustainable development, as it reduces the extraction of quartz sand from the river, a non-renewable mineral resource.
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spelling pubmed-87459502022-01-11 Recycled PET Sand for Cementitious Mortar Campanhão, Angélica Faria Marvila, Markssuel Teixeira de Azevedo, Afonso R. G. da Silva, Tulane Rodrigues Fediuk, Roman Vatin, Nikolai Materials (Basel) Article Cementitious materials cause a great impact on the environment due to the calcination of clinker and the extraction of non-renewable mineral resources. In this work, the replacement of quartz sand from the river by PET sand was evaluated at levels of 10%, 20%, and 30%. Tests were performed in the fresh state through consistency, air retention, density, and incorporated air and in the hardened state for compressive strength, flexural strength, density, capillarity, and water absorption. The results show that PET sand is viable in contents of up to 10%, improving the mechanical properties of the mortar and without compromising its workability and incorporated air properties. Above that level, the loss of properties is very excessive, mainly of workability and incorporated air. The incorporated air of the 30% composition, for example, reaches 24%, an excessive value that impacts the properties of the hardened state, making it impossible to use the material at levels greater than 20%. It is concluded that the use of recycled PET sand is a possibility that contributes to sustainable development, as it reduces the extraction of quartz sand from the river, a non-renewable mineral resource. MDPI 2021-12-30 /pmc/articles/PMC8745950/ /pubmed/35009419 http://dx.doi.org/10.3390/ma15010273 Text en © 2021 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
Campanhão, Angélica Faria
Marvila, Markssuel Teixeira
de Azevedo, Afonso R. G.
da Silva, Tulane Rodrigues
Fediuk, Roman
Vatin, Nikolai
Recycled PET Sand for Cementitious Mortar
title Recycled PET Sand for Cementitious Mortar
title_full Recycled PET Sand for Cementitious Mortar
title_fullStr Recycled PET Sand for Cementitious Mortar
title_full_unstemmed Recycled PET Sand for Cementitious Mortar
title_short Recycled PET Sand for Cementitious Mortar
title_sort recycled pet sand for cementitious mortar
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8745950/
https://www.ncbi.nlm.nih.gov/pubmed/35009419
http://dx.doi.org/10.3390/ma15010273
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