The effect of carbon nanotube on self-healing properties of engineered cementitious composites subjected to high temperatures

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dc.authoridBulut, Metehan/0000-0002-2079-7059
dc.authoridTANYILDIZI, Harun/0000-0002-7585-2609
dc.contributor.authorTanyildizi, Harun
dc.contributor.authorBulut, Metehan
dc.date.accessioned2024-11-07T13:31:34Z
dc.date.available2024-11-07T13:31:34Z
dc.date.issued2024
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractThis study aims to examine the effect of carbon nanotubes (CNT) on the self-healing performance of engineered cementitious composites (ECC) subjected to high temperatures. In ECC samples, CNT was used at 0%, 0.25%, 0.50%, and 0.75% by weight instead of cementitious materials. The cylindrical specimens containing CNT (o100 x 200 mm) were manufactured. The produced specimens were subjected to temperatures of 23 +/- 2, 100, 200, 300, 400, 500, 600, 700, and 800 degrees C after being cured at 23 +/- 2 degrees C for 28 days, and then, they left to cool at 23 +/- 2 degrees C for 1 day. Then, these specimens were preloaded at 70% of the ultimate splitting tensile strength to produce microcracks. Lastly, wetting-drying cycles were performed on ECCs for self-healing. The ultrasonic pulse velocity (UPV), splitting tensile strength (fst), and rapid chloride permeability (RCPT) tests were applied to evaluate the self-healing performance of specimens. Moreover, microstructural analyses such as scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDX), and X-ray diffraction (XRD) were accomplished to identify the healing products formed in self-healed cracks. According to the results of this study, the highest recovery rate of fst with 103.46% was attained from the ECC specimen containing 0.25% CNT exposed to 200 degrees C.
dc.identifier.doi10.1002/suco.202400184
dc.identifier.issn1464-4177
dc.identifier.issn1751-7648
dc.identifier.scopus2-s2.0-85191180876
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1002/suco.202400184
dc.identifier.urihttps://hdl.handle.net/11480/14926
dc.identifier.wosWOS:001205799100001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherErnst & Sohn
dc.relation.ispartofStructural Concrete
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241106
dc.subjectcarbon nanotube
dc.subjectECC
dc.subjecthigh temperatures
dc.subjectself-healing
dc.titleThe effect of carbon nanotube on self-healing properties of engineered cementitious composites subjected to high temperatures
dc.typeArticle

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