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Performance of Eco-Friendly Cement Mortars Incorporating Ceramic Molds Shells and Paraffin Wax

The lost wax foundry industry has been rapidly expanding in recent years, generating a large amount of waste due to the fact that most of the durable goods include castings and the need for dimensional precision castings for specific purposes, such as the automotive and aeronautics sectors. The wast...

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Detalles Bibliográficos
Autores principales: Cunha, Sandra, Silva, Raphael, Aguiar, José, Castro, Fernando
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10488404/
https://www.ncbi.nlm.nih.gov/pubmed/37687457
http://dx.doi.org/10.3390/ma16175764
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author Cunha, Sandra
Silva, Raphael
Aguiar, José
Castro, Fernando
author_facet Cunha, Sandra
Silva, Raphael
Aguiar, José
Castro, Fernando
author_sort Cunha, Sandra
collection PubMed
description The lost wax foundry industry has been rapidly expanding in recent years, generating a large amount of waste due to the fact that most of the durable goods include castings and the need for dimensional precision castings for specific purposes, such as the automotive and aeronautics sectors. The waste produced by this industry is currently being deposited in landfills because practical applications are not known and cannot be reused in a new production process, and recycling is also a challenge because of the economics of the process. Thus, the main objective of this study consists in the incorporation of the produced wastes by the lost wax casting foundry industry (ceramic molds shells and paraffin wax) as substitutes for natural aggregate in exterior coatings mortars, evaluating their behavior under normal operating conditions and against freeze–thaw actions. The obtained results revealed porosity, flexural strength, and compressive strength adequate under normal operating conditions. The freeze–thaw performance of the mortars with waste incorporation was similar to the mortars developed with natural aggregates. Thus, the potential of the ceramic mold shells and paraffinic waxes utilization in cementitious mortars for the construction sector was demonstrated.
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spelling pubmed-104884042023-09-09 Performance of Eco-Friendly Cement Mortars Incorporating Ceramic Molds Shells and Paraffin Wax Cunha, Sandra Silva, Raphael Aguiar, José Castro, Fernando Materials (Basel) Article The lost wax foundry industry has been rapidly expanding in recent years, generating a large amount of waste due to the fact that most of the durable goods include castings and the need for dimensional precision castings for specific purposes, such as the automotive and aeronautics sectors. The waste produced by this industry is currently being deposited in landfills because practical applications are not known and cannot be reused in a new production process, and recycling is also a challenge because of the economics of the process. Thus, the main objective of this study consists in the incorporation of the produced wastes by the lost wax casting foundry industry (ceramic molds shells and paraffin wax) as substitutes for natural aggregate in exterior coatings mortars, evaluating their behavior under normal operating conditions and against freeze–thaw actions. The obtained results revealed porosity, flexural strength, and compressive strength adequate under normal operating conditions. The freeze–thaw performance of the mortars with waste incorporation was similar to the mortars developed with natural aggregates. Thus, the potential of the ceramic mold shells and paraffinic waxes utilization in cementitious mortars for the construction sector was demonstrated. MDPI 2023-08-23 /pmc/articles/PMC10488404/ /pubmed/37687457 http://dx.doi.org/10.3390/ma16175764 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
Cunha, Sandra
Silva, Raphael
Aguiar, José
Castro, Fernando
Performance of Eco-Friendly Cement Mortars Incorporating Ceramic Molds Shells and Paraffin Wax
title Performance of Eco-Friendly Cement Mortars Incorporating Ceramic Molds Shells and Paraffin Wax
title_full Performance of Eco-Friendly Cement Mortars Incorporating Ceramic Molds Shells and Paraffin Wax
title_fullStr Performance of Eco-Friendly Cement Mortars Incorporating Ceramic Molds Shells and Paraffin Wax
title_full_unstemmed Performance of Eco-Friendly Cement Mortars Incorporating Ceramic Molds Shells and Paraffin Wax
title_short Performance of Eco-Friendly Cement Mortars Incorporating Ceramic Molds Shells and Paraffin Wax
title_sort performance of eco-friendly cement mortars incorporating ceramic molds shells and paraffin wax
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10488404/
https://www.ncbi.nlm.nih.gov/pubmed/37687457
http://dx.doi.org/10.3390/ma16175764
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