Investigation of Usability of Sepiolite as a Pozzolan in Production of High Performance Cementitious Composites

dc.contributor.authorSaka, Rasim Cem
dc.contributor.authorSubaşı, Serkan
dc.date.accessioned2024-08-23T16:08:08Z
dc.date.available2024-08-23T16:08:08Z
dc.date.issued2024en_US
dc.departmentDüzce Üniversitesien_US
dc.description.abstractThe continuous growth of population and urbanization in the world significantly increases the demand for cement. In terms of sustainability, the cement industry needs to develop new and effective pozzolans with the appropriate recycling of alternative raw materials. It is also important to evaluate sepiolite, which has very limited resources in the world compared to other industrial minerals and whose economic deposits are limited to Spain and Türkiye. In this study, the usability of sepiolite as a pozzolan in cement and its effects on physical, mechanical and durability properties were investigated. First of all, the chemical and physical properties of sepiolite in Eskisehir region were investigated. Crude and ground sepiolite calcined at 500 ºC, 700 ºC and 900ºC were substituted for CEM I 42.5 R class standard Portland cement at 5-10-15% and 20% ratios. The pozzolanic activities of produced sepiolite substituted cement were determined according to ASTM C-311. As a result, crude sepiolite retains more water than calcined sepiolite, thus negatively affecting the strength properties of the concrete. Additionally, sepiolite is considered suspicious (harmful-harmless) in terms of alkali silica reactivity except 10%-15%-20% crude sepiolite substitutions. Overall, It has been observed that sepiolite does not have sufficient pozzolanic properties in cementitious composites.en_US
dc.identifier.doi10.16984/saufenbilder.1245404
dc.identifier.endpage495en_US
dc.identifier.issn1301-4048
dc.identifier.issn2147-835X
dc.identifier.issue3en_US
dc.identifier.startpage480en_US
dc.identifier.trdizinid1247244en_US
dc.identifier.urihttps://doi.org/10.16984/saufenbilder.1245404
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/1247244
dc.identifier.urihttps://hdl.handle.net/20.500.12684/15113
dc.identifier.volume28en_US
dc.indekslendigikaynakTR-Dizinen_US
dc.language.isoenen_US
dc.relation.ispartofSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisien_US
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.titleInvestigation of Usability of Sepiolite as a Pozzolan in Production of High Performance Cementitious Compositesen_US
dc.typeArticleen_US

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