Physical and Chemical Actions of Nano-Mineral Additives on Properties of High-Volume Fly Ash Engineered Cementitious Composites

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dc.authoridAL-DAHAWI, Ali Majeed Khudayer/0000-0001-7836-1525
dc.authoridSelcuk, Seda/0000-0002-2046-3841
dc.contributor.authorAl-Najjar, Y.
dc.contributor.authorYesilmen, S.
dc.contributor.authorAl-Dahawi, Majeed
dc.contributor.authorSahmaran, M.
dc.contributor.authorYildirim, G.
dc.contributor.authorLachemi, M.
dc.contributor.authorAmleh, L.
dc.date.accessioned2025-01-06T17:36:58Z
dc.date.available2025-01-06T17:36:58Z
dc.date.issued2016
dc.description.abstractUnlike conventional concrete, the material design process for engineered cementitious composites (ECC) involves micromechanics-based design theory, paving the way for the use of high volumes of fly ash (HVFA) as a major component. Using high volumes of fly ash (up to 85% weight fraction of cement) in ECC mixtures enables improved tensile ductility (approximately a 3% increase in long-term tensile strain) with reduced crack widths, although it also leads to significantly reduced early-age compressive and tensile strength and chloride ion resistance. However, nanomineral additives are known to improve mechanical strength and durability of HVFA systems. The study emphasizes the effects of different fly ash (FA)/cement ratios on various properties (hydration and microstructural characteristics, transport and mechanical properties) of ECC mixtures designed with different mineral additives. Experimental results confirm that although different optimum levels can be selected to favor various ECC properties, optimum weight fraction of FA is dependent on the mechanism of nanomodification (that is, type of modifier). The optimum level of fly ash weight fraction that yields the highest rate of improvement through nanomodification of ECC varies for different mechanical and transport properties.
dc.identifier.doi10.14359/51689114
dc.identifier.endpage801
dc.identifier.issn0889-325X
dc.identifier.issn1944-737X
dc.identifier.issue6
dc.identifier.scopus2-s2.0-85006341524
dc.identifier.scopusqualityQ2
dc.identifier.startpage791
dc.identifier.urihttps://doi.org/10.14359/51689114
dc.identifier.urihttps://hdl.handle.net/20.500.14669/2059
dc.identifier.volume113
dc.identifier.wosWOS:000389695800010
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherAmer Concrete Inst
dc.relation.ispartofAci Materials Journal
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241211
dc.subjectchloride ion permeability
dc.subjectengineered cementitious composites
dc.subjecthigh-volume fly ash
dc.subjecthydration characteristics
dc.subjectmechanical properties
dc.subjectnanomineral additives
dc.titlePhysical and Chemical Actions of Nano-Mineral Additives on Properties of High-Volume Fly Ash Engineered Cementitious Composites
dc.typeArticle

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