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Optimizing an eco-friendly high-density concrete for offshore applications: A study on fly ash partial replacement and graphene oxide nano reinforcement

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dc.citedby17
dc.contributor.authorUdeze O.J.en_US
dc.contributor.authorMohammed B.S.en_US
dc.contributor.authorAdebanjo A.U.en_US
dc.contributor.authorAbdulkadir I.en_US
dc.contributor.authorid58788063600en_US
dc.contributor.authorid57203590522en_US
dc.contributor.authorid57302608100en_US
dc.contributor.authorid57218298049en_US
dc.date.accessioned2025-03-03T07:43:16Z
dc.date.available2025-03-03T07:43:16Z
dc.date.issued2024
dc.description.abstractThere is a need in enhancing high-density concrete (HDC) for safeguarding sub-sea pipelines and constructing concrete mattresses for pipeline stabilization. To tackle these issues, a novel approach using a combination of supplementary cementitious materials like fly ash (FA) and graphene oxide (GO) have been successfully used in the partial replacement of the cement in this study. This research aims to enhance density, water resistance, and compressive strength properties for offshore applications by using GO and FA. A central composite design (CCD) of the response surface methodology (RSM) was employed, generating thirteen mixes with varying dosages of GO in the range of 0.013%?0.053% by weight of the cement and FA in the range of 20%?50% by weight of the cement. The HDC mixes exhibited enhanced characteristics, including an increased density of 4282 kg/m?, a maximum compressive strength of 37.9 MPa, and reduced water absorption at 2.52%. Response predicted models were established and validated through ANOVA, and multi-objective optimization was performed at a desirability of 58%. This yielded optimal GO and FA dosages of 0.013% and 37.87% respectively, for HDC with improved performance. The R2 values for the models range from 70% to 96%, showing a good level of the model quality. The findings present promising opportunities for more sustainable, cost-effective, and environmentally friendly HDC solutions for offshore applications. ? 2023 The Authorsen_US
dc.description.natureFinalen_US
dc.identifier.ArtNo100592
dc.identifier.doi10.1016/j.cscee.2023.100592
dc.identifier.scopus2-s2.0-85181138192
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85181138192&doi=10.1016%2fj.cscee.2023.100592&partnerID=40&md5=5f30ee4641fded51dd9f66d1b95e4794
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/36591
dc.identifier.volume9
dc.publisherElsevier Ltden_US
dc.relation.ispartofAll Open Access; Hybrid Gold Open Access
dc.sourceScopus
dc.sourcetitleCase Studies in Chemical and Environmental Engineering
dc.titleOptimizing an eco-friendly high-density concrete for offshore applications: A study on fly ash partial replacement and graphene oxide nano reinforcementen_US
dc.typeArticleen_US
dspace.entity.typePublication
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