Effect of Fly Ash and PVA Fiber on Microstructural Damage and Residual Properties of Engineered Cementitious Composites Exposed to High Temperatures

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dc.authoridLi, Victor/0000-0002-8678-3493
dc.contributor.authorSahmaran, Mustafa
dc.contributor.authorOzbay, Erdogan
dc.contributor.authorYucel, Hasan E.
dc.contributor.authorLachemi, Mohamed
dc.contributor.authorLi, Victor C.
dc.date.accessioned2024-09-18T20:16:55Z
dc.date.available2024-09-18T20:16:55Z
dc.date.issued2011
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.description.abstractThis paper discusses the influence of high volumes of fly ash and micro polyvinyl alcohol (PVA) fibers on the fire resistance and microstructure of engineered cementitious composites (ECC). Composites containing two different contents of fly ash as a replacement for cement (55 and 70% by weight of total cementitious materials) are examined. To determine the effects of microfibers and ultrahigh ductility of ECC, ECC matrix mixtures of similar composition except PVA fiber are also produced and tested for the fire resistance. The mixtures are exposed to temperatures up to 800 degrees C for one hour. Fire resistances of the mixtures are then quantified in terms of the residual mechanical properties (strength, stress-strain curve, deflection, and stiffness) and mass loss. The role of PVA fibers and fly ash is discussed through the analysis of microstructure and fiber-matrix interactions as a function of heat treatment. The microstructural characterization is examined before and after exposure to fire deterioration by using scanning electron microscopy and the pore size distribution is obtained by mercury intrusion porosimetry. Results indicate that adding micro PVA fiber to the ECC matrix substantially improves the fire resistance and eliminates the explosive spalling behaviors of the ECC matrix. Fire resistance of ECC mixtures is further improved with the increase of fly ash content. DOI: 10.1061/(ASCE)MT.1943-5533.0000335. (C) 2011 American Society of Civil Engineers.en_US
dc.description.sponsorshipScientific and Technical Research Council (TUBITAK) of Turkey [MAG-108M495]; Gaziantep University Scientific Research Centre [MF.10.09]; Council of Higher Education of Turkey; Natural Sciences and Engineering Research Council (NSERC) of Canada; Canada Research Chair Program; U.S. National Science Foundation (NSF CI-Team) [OCI 0636300]en_US
dc.description.sponsorshipThe authors gratefully acknowledge the financial assistance of the Scientific and Technical Research Council (TUBITAK) of Turkey provided under Project: MAG-108M495, Gaziantep University Scientific Research Centre provided under Project: MF.10.09, The Council of Higher Education of Turkey, and the Natural Sciences and Engineering Research Council (NSERC) of Canada, the Canada Research Chair Program. Support from the U.S. National Science Foundation (NSF CI-Team OCI 0636300) for international collaborative research on ECC is gratefully acknowledged.en_US
dc.identifier.doi10.1061/(ASCE)MT.1943-5533.0000335
dc.identifier.endpage1745en_US
dc.identifier.issn0899-1561
dc.identifier.issn1943-5533
dc.identifier.issue12en_US
dc.identifier.scopus2-s2.0-84855939273en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1735en_US
dc.identifier.urihttps://doi.org/10.1061/(ASCE)MT.1943-5533.0000335
dc.identifier.urihttps://hdl.handle.net/20.500.12483/9809
dc.identifier.volume23en_US
dc.identifier.wosWOS:000299134100020en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherAsce-Amer Soc Civil Engineersen_US
dc.relation.ispartofJournal of Materials in Civil Engineeringen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectEngineered cementitious compositesen_US
dc.subjectFire resistanceen_US
dc.subjectFly ashen_US
dc.subjectPVA fibersen_US
dc.subjectMicrostructureen_US
dc.titleEffect of Fly Ash and PVA Fiber on Microstructural Damage and Residual Properties of Engineered Cementitious Composites Exposed to High Temperaturesen_US
dc.typeArticleen_US

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