Effect of microencapsulated phase change material on the rheological and thermal properties of asphalt binder

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dc.authorid0000-0002-1643-2487
dc.authorid0000-0002-7496-6006
dc.authorid0000-0002-4872-154X
dc.contributor.authorOzdemir, Ahmet Munir
dc.contributor.authorKok, Baha Vural
dc.contributor.authorYildirim, Furkan
dc.contributor.authorAydogmus, Ercan
dc.date.accessioned2026-02-08T15:15:21Z
dc.date.available2026-02-08T15:15:21Z
dc.date.issued2025
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractAsphalt binders are known for their pronounced sensitivity to temperature fluctuations, often leading to rutting under high temperatures and thermal cracking in colder conditions. While phase change materials (PCMs) have potential to regulate these thermal effects, their direct incorporation into binder poses challenges such as leakage and a lack of structural integrity. In this study, the effects of microencapsulated PCM additives on the rheological and thermal characteristics of asphalt binder was investigated. The results of Rotational Viscosity (RV), Temperature Sweep, Frequency Sweep and Bending Beam Rheometer (BBR) tests showed that PCM additions improve high-temperature performance by boosting viscosity and stiffness, and also help reduce brittleness at low temperatures. Supporting chemical analyses such as FTIR, TGA-DSC, and SEM confirmed both the successful integration and thermal stability of the microencapsulated PCM within the binder matrix. Further evaluation using master curves and the Cross Model highlighted a notable increase in zero-shear viscosity, particularly with an 8 % PCM content, along with improved flow consistency across varying temperatures. Additionally, thermal behavior assessments using a custom-designed experimental setup showed that PCM incorporation had a significant effect on the binder's temperature-time response. The duration to achieve peak temperature was extended, while both the heating rate and cooling slope were reduced, leading to a decrease in the overall thermal load in samples containing PCM. The area under the curve and thermal lag times indicated that PCM effectively absorbs heat during phase transitions, thereby dampening temperature fluctuations and ensuring a more stable thermal response of the binder.
dc.description.sponsorshipFimath;rat University Scientific Research Unit (FUBAP) [MF.25.100]
dc.description.sponsorshipThis study was supported by F & imath;rat University Scientific Research Unit (FUBAP) with project number MF.25.100.
dc.identifier.doi10.1016/j.jmrt.2025.09.246
dc.identifier.endpage2339
dc.identifier.issn2238-7854
dc.identifier.issn2214-0697
dc.identifier.scopus2-s2.0-105020589746
dc.identifier.scopusqualityQ1
dc.identifier.startpage2322
dc.identifier.urihttps://doi.org/10.1016/j.jmrt.2025.09.246
dc.identifier.urihttps://hdl.handle.net/20.500.12885/5733
dc.identifier.volume39
dc.identifier.wosWOS:001590204100001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofJournal of Materials Research and Technology-Jmr&T
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzWOS_KA_20260207
dc.subjectAsphalt
dc.subjectEncapsulated phase change material
dc.subjectRheology
dc.subjectThermal regulation
dc.subjectDynamic shear rheometer
dc.titleEffect of microencapsulated phase change material on the rheological and thermal properties of asphalt binder
dc.typeArticle

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