Sustainable Fire-Resistant Materials: Thermal, Physical, Mechanical, and Environmental Behavior of Walls with Waste from the Aquaculture Industry

© 2025 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 (https://creativecommons.org/ licenses/by/4.0/).

Detalles Bibliográficos
Autores: Peceño, Begoña, Alonso-Fariñas, Bernabé, Vega, Giovanna, Carrizo, Daniel, Leiva Fernández, Carlos
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/183646
Acceso en línea:https://hdl.handle.net/11441/183646
https://doi.org/10.3390/ma18225086
Access Level:acceso abierto
Palabra clave:Fireproof materials
Seashell waste
Semi-industrial scale
Thermal properties
Environmental properties
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spelling Sustainable Fire-Resistant Materials: Thermal, Physical, Mechanical, and Environmental Behavior of Walls with Waste from the Aquaculture IndustryPeceño, BegoñaAlonso-Fariñas, BernabéVega, GiovannaCarrizo, DanielLeiva Fernández, CarlosFireproof materialsSeashell wasteSemi-industrial scaleThermal propertiesEnvironmental properties© 2025 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 (https://creativecommons.org/ licenses/by/4.0/).The aquaculture industry generates large amounts of shell waste, with limited recycling options at the industrial scale. This study explores the feasibility of substituting 20% of gypsum with seashell waste to produce sustainable, fire-resistant panels for non-load-bearing walls on a semi-industrial scale (2.4 × 2.2 × 0.1 m). The new composite exhibits high density (≈1500 kg/m3) and mechanical performance comparable to commercial gypsum. Thermal and fire tests confirmed its excellent insulation and stability: after 4 h of standard fire exposure, the non-exposed surface temperature remained below 80 °C, meeting European fire-resistance criteria. The incorporation of shell waste slightly reduced density and thermal conductivity (0.23 W/mK at 500 °C) without affecting strength or surface hardness. Environmental characterization revealed leaching and radionuclide levels well below regulatory limits, confirming its safety for building use. Overall, this work demonstrates, for the first time at a semi-industrial scale, the technical and environmental feasibility of reusing seashell waste as a gypsum substitute for fireproof materials. The proposed approach advances circular-economy strategies for aquaculture residues, providing an innovative pathway toward sustainable and low-impact construction products.Multidisciplinary Digital Publishing Institute (MDPI)Ingeniería Química y AmbientalAgencia Nacional de Investigación y Desarrollo de Chile2025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/183646https://doi.org/10.3390/ma18225086reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésMaterials, 18 (22), 5086. ACT 240004https://www.mdpi.com/1996-1944/18/22/5086info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1836462026-06-17T12:51:07Z
dc.title.none.fl_str_mv Sustainable Fire-Resistant Materials: Thermal, Physical, Mechanical, and Environmental Behavior of Walls with Waste from the Aquaculture Industry
title Sustainable Fire-Resistant Materials: Thermal, Physical, Mechanical, and Environmental Behavior of Walls with Waste from the Aquaculture Industry
spellingShingle Sustainable Fire-Resistant Materials: Thermal, Physical, Mechanical, and Environmental Behavior of Walls with Waste from the Aquaculture Industry
Peceño, Begoña
Fireproof materials
Seashell waste
Semi-industrial scale
Thermal properties
Environmental properties
title_short Sustainable Fire-Resistant Materials: Thermal, Physical, Mechanical, and Environmental Behavior of Walls with Waste from the Aquaculture Industry
title_full Sustainable Fire-Resistant Materials: Thermal, Physical, Mechanical, and Environmental Behavior of Walls with Waste from the Aquaculture Industry
title_fullStr Sustainable Fire-Resistant Materials: Thermal, Physical, Mechanical, and Environmental Behavior of Walls with Waste from the Aquaculture Industry
title_full_unstemmed Sustainable Fire-Resistant Materials: Thermal, Physical, Mechanical, and Environmental Behavior of Walls with Waste from the Aquaculture Industry
title_sort Sustainable Fire-Resistant Materials: Thermal, Physical, Mechanical, and Environmental Behavior of Walls with Waste from the Aquaculture Industry
dc.creator.none.fl_str_mv Peceño, Begoña
Alonso-Fariñas, Bernabé
Vega, Giovanna
Carrizo, Daniel
Leiva Fernández, Carlos
author Peceño, Begoña
author_facet Peceño, Begoña
Alonso-Fariñas, Bernabé
Vega, Giovanna
Carrizo, Daniel
Leiva Fernández, Carlos
author_role author
author2 Alonso-Fariñas, Bernabé
Vega, Giovanna
Carrizo, Daniel
Leiva Fernández, Carlos
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ingeniería Química y Ambiental
Agencia Nacional de Investigación y Desarrollo de Chile
dc.subject.none.fl_str_mv Fireproof materials
Seashell waste
Semi-industrial scale
Thermal properties
Environmental properties
topic Fireproof materials
Seashell waste
Semi-industrial scale
Thermal properties
Environmental properties
description © 2025 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 (https://creativecommons.org/ licenses/by/4.0/).
publishDate 2025
dc.date.none.fl_str_mv 2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/183646
https://doi.org/10.3390/ma18225086
url https://hdl.handle.net/11441/183646
https://doi.org/10.3390/ma18225086
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Materials, 18 (22), 5086.
ACT 240004
https://www.mdpi.com/1996-1944/18/22/5086
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute (MDPI)
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute (MDPI)
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,198674

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