Sustainable Cement Paste Development Using Wheat Straw Ash and Silica Fume Replacement Model

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dc.article.number11226
dc.catalogadorpau
dc.contributor.authorBastías, Bryan
dc.contributor.authorGonzález, Marcelo
dc.contributor.authorRey-Rey, Juan
dc.contributor.authorValerio, Guillermo
dc.contributor.authorGuindos, Pablo
dc.date.accessioned2025-04-04T14:30:19Z
dc.date.available2025-04-04T14:30:19Z
dc.date.issued2024
dc.description.abstract© 2024 by the authors.Conventional cement production is a major source of carbon dioxide emissions, which creates a significant environmental challenge. This research addresses the problem of how to reduce the carbon footprint of cement paste production using agricultural and industrial waste by-products, namely wheat straw ash (WSA) and silica fume (SF). Currently, accurate models that can predict the mechanical properties of cement pastes incorporating these waste materials are lacking. To fill this gap, our study proposes a model based on response surface methodology and Box-Behnken design, designed to predict the strength of cement pastes with partial substitutions of WSA and SF. Through mechanical and characterization tests, the model demonstrated high accuracy in predicting the strength of the pastes, validated with three mixes, which showed maximum errors of less than 6% at different ages (7, 28, and 56 days). Response surface analysis revealed that replacing cement with 0–20% WSA and more than 5% SF can effectively reduce the carbon footprint by maximizing waste incorporation. This model allows for the calculation of optimal cement substitution levels based on the required strength, thus promoting sustainability in the construction industry through the use of local waste/resources.
dc.description.funderConcrete Innovation Hub UC
dc.description.funderPontificia Universidad Católica de Chile
dc.description.funderUniversidade da Coruña
dc.description.funderCENAMAD
dc.description.funderFONDEF
dc.description.funderFONDEF
dc.fechaingreso.objetodigital2025-03-31
dc.fuente.origenORCID
dc.identifier.doi10.3390/su162411226
dc.identifier.issn2071-1050
dc.identifier.scopusidSCOPUS_ID:85213236703
dc.identifier.urihttps://doi.org/10.3390/su162411226
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/103124
dc.information.autorucEscuela de Ingeniería; Bastías, Bryan; S/I; 1049378
dc.information.autorucEscuela de Ingeniería; Valerio, Guillermo; S/I; 1049360
dc.information.autorucEscuela de Ingeniería; Guindos, Pablo; 0000-0001-7471-0281; 1051045
dc.language.isoen
dc.nota.accesocontenido completo
dc.publisherMultidisciplinary Digital Publishing Institute (MDPI)
dc.revistaSustainability (Switzerland)
dc.rightsacceso abierto
dc.rights.licenseCC BY 4.0 Attribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectBox-Behnken Design
dc.subjectCement paste
dc.subjectDesign of experiment
dc.subjectLow carbon
dc.subjectSilica fume
dc.subjectSupplementary cementitious material
dc.subjectSustainable concrete
dc.subjectWheat straw ash
dc.subject.ddc550
dc.subject.deweyCiencias de la tierraes_ES
dc.titleSustainable Cement Paste Development Using Wheat Straw Ash and Silica Fume Replacement Model
dc.typeartículo
dc.volumen16
sipa.codpersvinculados1049378
sipa.codpersvinculados1049360
sipa.codpersvinculados1051045
sipa.trazabilidadORCID;2025-03-03
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