Influence of carbonation curing and nano-silica incorporation on compressive strength and micro-structural development of binary RMC-based systems

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dc.authoridAkturk, Busra/0000-0003-1484-7758
dc.authorwosidAkturk, Busra/JCO-1851-2023
dc.contributor.authorTaj, Khalilullah
dc.contributor.authorAkturk, Busra
dc.contributor.authorUlukaya, Serhan
dc.date.accessioned2024-07-18T20:42:47Z
dc.date.available2024-07-18T20:42:47Z
dc.date.issued2023
dc.departmentİstanbul Bilgi Üniversitesien_US
dc.description.abstractFresh-state properties, compressive strength, and microstructural properties of reactive MgO cement-based (RMC) systems cured under accelerated carbonation or ambient conditions were examined in the paper. RMC, which is an environmentally greener alternative to ordinary Portland cement (OPC), was incorporated in the reference series to contrast its mechanical properties with other cementitious materials. To assess the synergy of RMC with other binders such as microsilica, slag, and fly ash, as well as to find a way to incorporate more sustainable materials in the mortars, binary systems were designed. Lastly, to evaluate the influence of ultra-fine nano-silica (NS), on the composite binders, tertiary systems were formulated. In the carbonated series, a significant pH decrease, as well as a striking increase in compressive strength were observed. Accelerated carbonation induced the formation of magnesium calcite, which is supported by eclectic microstructural analyses. The highest compressive strength was measured in the carbonated reference series, binary and tertiary series also demonstrated respectable strength which was accompanied by compact microstructure. The addition of NS correlated with a decrease in the number of pores, especially large capillary pores, whereas no perceivable change in reaction products was discovered. In conclusion, this study demonstrated that reactive MgObased cement could be used as a complete or partial replacement for conventional binders in structural concrete; the promising qualities of carbonated specimens ensure its usage as highstrength concrete.en_US
dc.identifier.doi10.1016/j.jobe.2023.105856
dc.identifier.issn2352-7102
dc.identifier.scopus2-s2.0-85146145937en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.jobe.2023.105856
dc.identifier.urihttps://hdl.handle.net/11411/7422
dc.identifier.volume66en_US
dc.identifier.wosWOS:001008888900001en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofJournal of Building Engineeringen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectReactive Magnesium Cementen_US
dc.subjectPozzolansen_US
dc.subjectNano-Silicaen_US
dc.subjectAccelerated Carbonationen_US
dc.subjectMagnesium-Silicateen_US
dc.subjectReactive Mgoen_US
dc.subjectFly-Ashen_US
dc.subjectThermal-Decompositionen_US
dc.subjectAccelerated Carbonationen_US
dc.subjectCementitious Materialsen_US
dc.subjectPerformanceen_US
dc.subjectHydrationen_US
dc.subjectWateren_US
dc.subjectCo2en_US
dc.titleInfluence of carbonation curing and nano-silica incorporation on compressive strength and micro-structural development of binary RMC-based systemsen_US
dc.typeArticleen_US

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