Dielectric property enhancement of glass fiber-reinforced concrete via TiO? 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.accessioned2025-08-25T20:32:46Z
dc.date.available2025-08-25T20:32:46Z
dc.date.issued2025
dc.departmentDÜ, Gümüşova Meslek Yüksekokulu
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 TiO?-based hybrid composite (TiO?-@) into GFRC to develop multifunctional composites with enhanced dielectric, mechanical, and energy storage capabilities. Experimental results demonstrate that TiO?-@ 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 % TiO?-@ sample also exhibited a Leeb hardness increase to 486 HLD (from 159 HLD pre-aging), highlighting its structural robustness. Frequencydependent analyses revealed modified polarization mechanisms and charge transport dynamics, with ColeCole plots and impedance spectroscopy confirming reduced capacitive reactance and enhanced interfacial interactions. These results establish TiO?-@ as a transformative additive for GFRC, bridging the gap between structural performance and energy functionality. The work pioneers the integration of TiO? 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.issue109444
dc.identifier.urihttps://doi.org/10.1016/j.istruc.2025.109444
dc.identifier.urihttps://hdl.handle.net/20.500.12684/20137
dc.identifier.volume79
dc.indekslendigikaynakWeb of Sceince
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofStructures
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_Ozel_2025_08_25
dc.subjectDielectric behaviour
dc.subjectEnergy storage
dc.subjectHybrid composites
dc.subjectMechanical properties
dc.subjectSurface roughness
dc.subjectCharge transport dynamics
dc.subjectSmart construction materials
dc.titleDielectric property enhancement of glass fiber-reinforced concrete via TiO? nanocomposites
dc.typeArticle

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