Dielectric property enhancement of glass fiber-reinforced concrete via TiO₂ nanocomposites

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dc.contributor.authorRamazanoğlu, Doğu
dc.contributor.authorSubaşı, Azime
dc.contributor.authorMusatat, Ahmad Badreddin
dc.contributor.authorDemir, Ahmet
dc.contributor.authorSubaşı, Serkan
dc.contributor.authorMaraşlı, Muhammed
dc.date.accessioned2025-07-03T05:47:24Z
dc.date.available2025-07-03T05:47:24Z
dc.date.issued2025
dc.departmentFakülteler, Mühendislik Fakültesi, Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü
dc.description.abstractThis study addresses the critical gap in traditional glass fiber-reinforced concrete (GFRC), which lacks tailored electrical properties for modern energy-related applications. We introduce a novel approach by incorporating a TiO₂-based hybrid composite (TiO₂-@) into GFRC to develop multifunctional composites with enhanced dielectric, mechanical, and energy storage capabilities. Experimental results demonstrate that TiO₂-@ doping at 2 % concentration achieves the most significant improvements: a dielectric constant increase to ∼420 at 100 Hz (compared to ∼180 for undoped GFRC), capacitance enhancement to 71 pF at 100 Hz (versus 18 pF in the reference), and AC conductivity elevation by 205 % after aging. The 2 % TiO₂-@ sample also exhibited a Leeb hardness increase to 486 HLD (from 159 HLD pre-aging), highlighting its structural robustness. Frequency-dependent analyses revealed modified polarization mechanisms and charge transport dynamics, with Cole-Cole plots and impedance spectroscopy confirming reduced capacitive reactance and enhanced interfacial interactions. These results establish TiO₂-@ as a transformative additive for GFRC, bridging the gap between structural performance and energy functionality. The work pioneers the integration of TiO₂ nanocomposites into cementitious matrices, offering a dual-purpose material for smart construction systems and embedded energy storage devices.
dc.identifier.doi10.1016/j.istruc.2025.109444
dc.identifier.issn2352-0124
dc.identifier.scopus2-s2.0-105008792831
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.istruc.2025.109444
dc.identifier.urihttps://hdl.handle.net/11501/2249
dc.identifier.volume79
dc.identifier.wosWOS:001517355000005
dc.identifier.wosqualityQ1
dc.indekslendigikaynakScopus
dc.indekslendigikaynakWeb of Science
dc.institutionauthorRamazanoğlu, Doğu
dc.institutionauthorid0000-0002-6356-5792
dc.language.isoen
dc.publisherElsevier Ltd
dc.relation.ispartofStructures
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.relation.tubitakinfo:eu-repo/grantAgreement/TUBITAK/SOBAG/122C050
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectCharge Transport Dynamics
dc.subjectDielectric Behaviour
dc.subjectEnergy Storage
dc.subjectHybrid Composites
dc.subjectMechanical Properties
dc.subjectSmart Construction Materials
dc.subjectSurface Roughness
dc.titleDielectric property enhancement of glass fiber-reinforced concrete via TiO₂ nanocomposites
dc.typeArticle

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