Durability of Ternary Cements Based on New Supplementary Cementitious Materials from Industrial Waste

[EN] Cement-based materials decay with exposure to aggressive agents, a development that raises infrastructure operation and maintenance costs substantially. This paper analyses the inclusion of ultrafine construction and demolition (UC&DW) and biomass-fuelled power plant (BA) waste as pozzolani...

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Detalles Bibliográficos
Autores: Sáez del Bosque, Isabel F., Sánchez de Rojas, María Isabel, Medina Martínez, Gabriel, Barcala, Sara, Medina Martínez, César
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Universidad de León
Repositorio:BULERIA. Repositorio Institucional de la Universidad de León
OAI Identifier:oai:buleria.unileon.es:10612/23813
Acceso en línea:https://www.mdpi.com/2076-3417/11/13/5977
https://hdl.handle.net/10612/23813
Access Level:acceso abierto
Palabra clave:Ingeniería mecánica
Biomass ash
Construction and demolition waste
Supplementary cementitious materials
Corrosion index
Cement pastes
Durability
3313.04 Material de Construcción
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spelling Durability of Ternary Cements Based on New Supplementary Cementitious Materials from Industrial WasteSáez del Bosque, Isabel F.Sánchez de Rojas, María IsabelMedina Martínez, GabrielBarcala, SaraMedina Martínez, CésarIngeniería mecánicaBiomass ashConstruction and demolition wasteSupplementary cementitious materialsCorrosion indexCement pastesDurability3313.04 Material de Construcción[EN] Cement-based materials decay with exposure to aggressive agents, a development that raises infrastructure operation and maintenance costs substantially. This paper analyses the inclusion of ultrafine construction and demolition (UC&DW) and biomass-fuelled power plant (BA) waste as pozzolanic additions to cement in pursuit of more sustainable and eco-respectful binders and assesses the durability of the end materials when exposed to seawater, chlorides (0.5 M NaCl) or sulphates (0.3 M Na2SO4). The effect of adding silica fume (SF) at a replacement ratio of 5% was also analysed. Durability was determined using the methodology proposed by Koch and Steinegger, whilst microstructural changes were monitored with mercury intrusion porosimetry (MIP), X-ray diffraction (XRD) and scanning electron microscopy (SEM) for a fuller understanding of decay processes. According to the findings, the new blended cements containing 20%UC&DW + 10%BA or 20%UC&DW + 20%BA + 5%SF resist the attack by the aggressive media studied, with a 56-d corrosion index of over 0.7. The composition of the reaction products generated with the attack is essentially the same in OPC and the SCM-bearing materials. The results show that the optimal replacement ratio for SCM is 30%.SIAEI (Agencia Española de la Investigación) 10.13039/501100011033Consejería de Economía, Ciencia y Agenda Digital (Junta de Extremadura) GR 18122MDPIIngenieria MecanicaEscuela de Ingenierias Industrial, Informática y Aeroespacial2021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttps://www.mdpi.com/2076-3417/11/13/5977https://hdl.handle.net/10612/23813reponame:BULERIA. Repositorio Institucional de la Universidad de Leóninstname:Universidad de LeónInglésinfo:eu-repo/grantAgreement/AEI/Programa Estatal de Generación de Conocimiento y Fortalecimiento Científico y Tecnológico del Sistema de I+D+i/ PID2019-107238RB-C21http://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:buleria.unileon.es:10612/238132026-06-24T12:43:27Z
dc.title.none.fl_str_mv Durability of Ternary Cements Based on New Supplementary Cementitious Materials from Industrial Waste
title Durability of Ternary Cements Based on New Supplementary Cementitious Materials from Industrial Waste
spellingShingle Durability of Ternary Cements Based on New Supplementary Cementitious Materials from Industrial Waste
Sáez del Bosque, Isabel F.
Ingeniería mecánica
Biomass ash
Construction and demolition waste
Supplementary cementitious materials
Corrosion index
Cement pastes
Durability
3313.04 Material de Construcción
title_short Durability of Ternary Cements Based on New Supplementary Cementitious Materials from Industrial Waste
title_full Durability of Ternary Cements Based on New Supplementary Cementitious Materials from Industrial Waste
title_fullStr Durability of Ternary Cements Based on New Supplementary Cementitious Materials from Industrial Waste
title_full_unstemmed Durability of Ternary Cements Based on New Supplementary Cementitious Materials from Industrial Waste
title_sort Durability of Ternary Cements Based on New Supplementary Cementitious Materials from Industrial Waste
dc.creator.none.fl_str_mv Sáez del Bosque, Isabel F.
Sánchez de Rojas, María Isabel
Medina Martínez, Gabriel
Barcala, Sara
Medina Martínez, César
author Sáez del Bosque, Isabel F.
author_facet Sáez del Bosque, Isabel F.
Sánchez de Rojas, María Isabel
Medina Martínez, Gabriel
Barcala, Sara
Medina Martínez, César
author_role author
author2 Sánchez de Rojas, María Isabel
Medina Martínez, Gabriel
Barcala, Sara
Medina Martínez, César
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ingenieria Mecanica
Escuela de Ingenierias Industrial, Informática y Aeroespacial
dc.subject.none.fl_str_mv Ingeniería mecánica
Biomass ash
Construction and demolition waste
Supplementary cementitious materials
Corrosion index
Cement pastes
Durability
3313.04 Material de Construcción
topic Ingeniería mecánica
Biomass ash
Construction and demolition waste
Supplementary cementitious materials
Corrosion index
Cement pastes
Durability
3313.04 Material de Construcción
description [EN] Cement-based materials decay with exposure to aggressive agents, a development that raises infrastructure operation and maintenance costs substantially. This paper analyses the inclusion of ultrafine construction and demolition (UC&DW) and biomass-fuelled power plant (BA) waste as pozzolanic additions to cement in pursuit of more sustainable and eco-respectful binders and assesses the durability of the end materials when exposed to seawater, chlorides (0.5 M NaCl) or sulphates (0.3 M Na2SO4). The effect of adding silica fume (SF) at a replacement ratio of 5% was also analysed. Durability was determined using the methodology proposed by Koch and Steinegger, whilst microstructural changes were monitored with mercury intrusion porosimetry (MIP), X-ray diffraction (XRD) and scanning electron microscopy (SEM) for a fuller understanding of decay processes. According to the findings, the new blended cements containing 20%UC&DW + 10%BA or 20%UC&DW + 20%BA + 5%SF resist the attack by the aggressive media studied, with a 56-d corrosion index of over 0.7. The composition of the reaction products generated with the attack is essentially the same in OPC and the SCM-bearing materials. The results show that the optimal replacement ratio for SCM is 30%.
publishDate 2021
dc.date.none.fl_str_mv 2021
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://www.mdpi.com/2076-3417/11/13/5977
https://hdl.handle.net/10612/23813
url https://www.mdpi.com/2076-3417/11/13/5977
https://hdl.handle.net/10612/23813
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/AEI/Programa Estatal de Generación de Conocimiento y Fortalecimiento Científico y Tecnológico del Sistema de I+D+i/ PID2019-107238RB-C21
dc.rights.none.fl_str_mv http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:BULERIA. Repositorio Institucional de la Universidad de León
instname:Universidad de León
instname_str Universidad de León
reponame_str BULERIA. Repositorio Institucional de la Universidad de León
collection BULERIA. Repositorio Institucional de la Universidad de León
repository.name.fl_str_mv
repository.mail.fl_str_mv
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