Investigation of Properties of Engineered Cementitious Composites Incorporating High Volumes of Fly Ash and Metakaolin

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dc.authoridAtis, Cengiz Duran/0000-0003-3459-329X
dc.contributor.authorOzbay, E.
dc.contributor.authorKarahan, O.
dc.contributor.authorLachemi, M.
dc.contributor.authorHossain, K. M. A.
dc.contributor.authorAtis, C. Duran
dc.date.accessioned2024-09-18T20:16:35Z
dc.date.available2024-09-18T20:16:35Z
dc.date.issued2012
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.description.abstractThis study was carried out to develop engineered cementitious composites (ECCs) incorporating binary blends of high volumes of fly ash (FA) and metakaolin (MK) for the purpose of achieving low drying shrinkage and high composite strength with adequate ductility and improved durability. ECC, an ultra-ductile cement-based composite reinforced with short random fibers, exhibits strain-hardening and multiple-cracking behavior in uniaxial tension and bending. Standard (M45) and high-volume FA ECC mixtures are typically produced by replacing portland cement (PC) with 55% and 70% of FA, respectively (FA-to-cement ratio of 1.2 and 2.2 by weight). In this study, the (FA + MK)/PC ratio was maintained at 1.2 and 2.2 and the FA/MK ratio was maintained at 4.5. Two replacement levels of MK with FA were adopted. The investigation used 10% and 12.5% MK by weight of total binder content, respectively. For the purposes of comparison, standard and high-volume FA ECCs were also studied. To determine the effect of binary blends of FA and MK on the properties of ECC, this study focused on the evaluation of free drying shrinkage, flexural and compressive strengths, porosity and water absorption (WA), sorptivity, and chloride-ion permeability. The experimental results showed that the drying shrinkage, porosity, absorption, sorptivity, and chloride-ion permeability properties were significantly reduced with the use of binary blends of FA and MK, while ECC's ultra-high ductility and strain-hardening properties were preserved at an adequate level.en_US
dc.description.sponsorshipCouncil of Higher Education of Turkey (YOK); Natural Sciences and Engineering Research Council (NSERC) of Canada; Canada Research Chair Programen_US
dc.description.sponsorshipThe authors gratefully acknowledge the financial assistance of The Council of Higher Education of Turkey (YOK), the Natural Sciences and Engineering Research Council (NSERC) of Canada, and the Canada Research Chair Program.en_US
dc.identifier.endpage571en_US
dc.identifier.issn0889-325X
dc.identifier.issn1944-737X
dc.identifier.issue5en_US
dc.identifier.startpage565en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12483/9605
dc.identifier.volume109en_US
dc.identifier.wosWOS:000309735600009en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherAmer Concrete Insten_US
dc.relation.ispartofAci Materials Journalen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectdrying shrinkageen_US
dc.subjectdurabilityen_US
dc.subjectengineered cementitious compositesen_US
dc.subjectmetakaolinen_US
dc.titleInvestigation of Properties of Engineered Cementitious Composites Incorporating High Volumes of Fly Ash and Metakaolinen_US
dc.typeArticleen_US

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