Effects of microencapsulated phase change material on physico-mechanical and thermoregulation performance of lightweight geopolymer concrete with zeolite and perlite

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dc.authoridKaya, Mehmet/0000-0002-8116-0123
dc.contributor.authorOren, Osman Hulusi
dc.contributor.authorMandev, Emre
dc.contributor.authorKaya, Mehmet
dc.contributor.authorSari, Ahmet
dc.contributor.authorHekimoglu, Gokhan
dc.contributor.authorCikman, Ismail Umit
dc.contributor.authorSubasi, Serkan
dc.date.accessioned2025-02-22T14:09:02Z
dc.date.available2025-02-22T14:09:02Z
dc.date.issued2025
dc.departmentDicle Üniversitesien_US
dc.description.abstractThis study examines impact of microencapsulated phase change material (MPCM) additives on physical and mechanical characteristics of geopolymers produced using natural zeolite and slaked lime. The binder composition consists of 90 % zeolite and 10 % slaked lime, activated with NaOH at a Na/binder ratio of 14 % by weight. Basalt-based sand and perlite were used as aggregates with a water/binder ratio of 0.60. MPCM was added in varying proportions of 8 %, 16 %, and 24 % relative to the binder weight. Samples were molded in dimensions of 50 x 50 x 50 mm and 200 x 200 x 20 mm, then cured at 95 degrees C for 24 h. Differential Scanning Calorimetry (DSC) outcomes presented that geopolymer composite with MPCM has a melting degree of 26.45 degrees C and a melting enthalpy of 17.8 J/g. Fourier Transform Infrared Spectroscopy (FTIR) results confirmed physical integration of MPCM into geopolymer structure. The study also evaluated compressive strength, ultrasound pulse velocity (UPV), dry unit weight, and microstructural properties using Scanning Electron Microscopy (SEM) and Energy Dispersive Spectroscopy (EDS). Thermoregulation performance experiments demonstrated that the MPCMenhanced samples effectively moderated temperature fluctuations, maintaining lower temperatures for controlled heating and higher temperatures for natural cooling phases compared to the control sample. Thermal regulation capabilities of MPCM-infused geopolymers were evidenced by their property of absorbing and releasing heat, which is critical for energy-efficient building materials. Additionally, the durability and stability of the geopolymer matrix were enhanced by the uniform dispersion of MPCMs, which also improved the composite's mechanical performance. The successful integration of MPCMs highlights their potential in developing sustainable construction materials that contribute to energy savings and environmental conservation.en_US
dc.identifier.doi10.1016/j.est.2024.115225
dc.identifier.issn2352-152X
dc.identifier.issn2352-1538
dc.identifier.scopus2-s2.0-85213854675en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.est.2024.115225
dc.identifier.urihttps://hdl.handle.net/11468/29764
dc.identifier.volume109en_US
dc.identifier.wosWOS:001402237900001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofJournal of Energy Storageen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.snmzKA_WOS_20250222
dc.subjectMicroencapsulated phase change materialen_US
dc.subjectLightweight geopolymer concreteen_US
dc.subjectSustainable environment and urbanizationen_US
dc.subjectThermal energy storageen_US
dc.subjectRenewable energyen_US
dc.subjectEnergy and energy efficiencyen_US
dc.titleEffects of microencapsulated phase change material on physico-mechanical and thermoregulation performance of lightweight geopolymer concrete with zeolite and perliteen_US
dc.typeArticleen_US

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