Fresh, mechanical, and microstructural properties of sustainable mortars made of two recycled sands from construction and demolition wastes

This paper analyses the ability of two recycled sands (RSs) from concrete (CON) and masonry (MAS) wastes for the manufacture of mortars for the construction industry. Manufactured sand (MS) was substituted by both RSs at the rates of 25%, 50%, 75%, and 100%. CON combinations did not demonstrate any...

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Autores: Seco Meneses, Andrés, Martín Antunes, Miguel Ángel, Espuelas Zuazu, Sandra, Marcelino Sádaba, Sara, Prieto Cobo, Eduardo
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2025
País:España
Institución:Universidad Pública de Navarra
Repositorio:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
OAI Identifier:oai:academica-e.unavarra.es:2454/54585
Acceso en línea:https://hdl.handle.net/2454/54585
Access Level:acceso abierto
Palabra clave:Recycled sand
Construction and demolition wastes
Concrete waste
Masonry waste
Mortars
Sustainable construction materials
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spelling Fresh, mechanical, and microstructural properties of sustainable mortars made of two recycled sands from construction and demolition wastesSeco Meneses, AndrésMartín Antunes, Miguel ÁngelEspuelas Zuazu, SandraMarcelino Sádaba, SaraPrieto Cobo, EduardoRecycled sandConstruction and demolition wastesConcrete wasteMasonry wasteMortarsSustainable construction materialsThis paper analyses the ability of two recycled sands (RSs) from concrete (CON) and masonry (MAS) wastes for the manufacture of mortars for the construction industry. Manufactured sand (MS) was substituted by both RSs at the rates of 25%, 50%, 75%, and 100%. CON combinations did not demonstrate any correlation between workability and the MS replacement ratio, whereas MAS combinations exhibited a direct relationship between these factors. A decrease in the starting and final setting times was observed for both RS combinations and, in general, longer total setting times. CON combinations showed mechanical strength increases for substitution rates between 25% and 50%, whereas MAS reached improved mechanical strength at 25%. Scanning electron microscopy-energy dispersive X-ray (SEM-EDX)-demonstrated tests allowed for mortar microstructure differences and hydration product formation. Thermogravimetric analysis/derivative thermogravimetry (TG/DTG) tests showed hydrated cementitious compounds' formation differences and the consumption of Portlandite between combinations and their evolution during curing.This work was funded by Gobierno de Navarra and Fondo Europeo de Desarrollo Regional (FEDER) through the research project 'Infraestructura Verde Modular para la Gestión Sostenible de Drenaje Urbano y Control de Vertidos-Gisud' (Reference No. 0011-1365-2021-000142).American Society of Civil EngineersIngenieríaIngeniaritzaInstitute of Smart Cities - ISCGobierno de Navarra / Nafarroako Gobernua2025info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://hdl.handle.net/2454/54585reponame:Academica-e. Repositorio Institucional de la Universidad Pública de Navarrainstname:Universidad Pública de NavarraInglésinfo:eu-repo/grantAgreement/Gobierno de Navarra//0011-1365-2021-000142© 2025 American Society of Civil Engineers.info:eu-repo/semantics/openAccessoai:academica-e.unavarra.es:2454/545852026-06-17T12:41:47Z
dc.title.none.fl_str_mv Fresh, mechanical, and microstructural properties of sustainable mortars made of two recycled sands from construction and demolition wastes
title Fresh, mechanical, and microstructural properties of sustainable mortars made of two recycled sands from construction and demolition wastes
spellingShingle Fresh, mechanical, and microstructural properties of sustainable mortars made of two recycled sands from construction and demolition wastes
Seco Meneses, Andrés
Recycled sand
Construction and demolition wastes
Concrete waste
Masonry waste
Mortars
Sustainable construction materials
title_short Fresh, mechanical, and microstructural properties of sustainable mortars made of two recycled sands from construction and demolition wastes
title_full Fresh, mechanical, and microstructural properties of sustainable mortars made of two recycled sands from construction and demolition wastes
title_fullStr Fresh, mechanical, and microstructural properties of sustainable mortars made of two recycled sands from construction and demolition wastes
title_full_unstemmed Fresh, mechanical, and microstructural properties of sustainable mortars made of two recycled sands from construction and demolition wastes
title_sort Fresh, mechanical, and microstructural properties of sustainable mortars made of two recycled sands from construction and demolition wastes
dc.creator.none.fl_str_mv Seco Meneses, Andrés
Martín Antunes, Miguel Ángel
Espuelas Zuazu, Sandra
Marcelino Sádaba, Sara
Prieto Cobo, Eduardo
author Seco Meneses, Andrés
author_facet Seco Meneses, Andrés
Martín Antunes, Miguel Ángel
Espuelas Zuazu, Sandra
Marcelino Sádaba, Sara
Prieto Cobo, Eduardo
author_role author
author2 Martín Antunes, Miguel Ángel
Espuelas Zuazu, Sandra
Marcelino Sádaba, Sara
Prieto Cobo, Eduardo
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ingeniería
Ingeniaritza
Institute of Smart Cities - ISC
Gobierno de Navarra / Nafarroako Gobernua
dc.subject.none.fl_str_mv Recycled sand
Construction and demolition wastes
Concrete waste
Masonry waste
Mortars
Sustainable construction materials
topic Recycled sand
Construction and demolition wastes
Concrete waste
Masonry waste
Mortars
Sustainable construction materials
description This paper analyses the ability of two recycled sands (RSs) from concrete (CON) and masonry (MAS) wastes for the manufacture of mortars for the construction industry. Manufactured sand (MS) was substituted by both RSs at the rates of 25%, 50%, 75%, and 100%. CON combinations did not demonstrate any correlation between workability and the MS replacement ratio, whereas MAS combinations exhibited a direct relationship between these factors. A decrease in the starting and final setting times was observed for both RS combinations and, in general, longer total setting times. CON combinations showed mechanical strength increases for substitution rates between 25% and 50%, whereas MAS reached improved mechanical strength at 25%. Scanning electron microscopy-energy dispersive X-ray (SEM-EDX)-demonstrated tests allowed for mortar microstructure differences and hydration product formation. Thermogravimetric analysis/derivative thermogravimetry (TG/DTG) tests showed hydrated cementitious compounds' formation differences and the consumption of Portlandite between combinations and their evolution during curing.
publishDate 2025
dc.date.none.fl_str_mv 2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2454/54585
url https://hdl.handle.net/2454/54585
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/Gobierno de Navarra//0011-1365-2021-000142
dc.rights.none.fl_str_mv © 2025 American Society of Civil Engineers.
info:eu-repo/semantics/openAccess
rights_invalid_str_mv © 2025 American Society of Civil Engineers.
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Society of Civil Engineers
publisher.none.fl_str_mv American Society of Civil Engineers
dc.source.none.fl_str_mv reponame:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
instname:Universidad Pública de Navarra
instname_str Universidad Pública de Navarra
reponame_str Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
collection Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
repository.name.fl_str_mv
repository.mail.fl_str_mv
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