Mechanical and durability properties of fly ash and slag based geopolymer concrete

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dc.authoridGülşan, Mehmet Eren/0000-0002-8991-0363
dc.authoridAlzeebaree, Radhwan/0000-0003-2496-3322
dc.authoridNIS, ANIL/0000-0001-9092-8088
dc.contributor.authorKurtoglu, Ahmet Emin
dc.contributor.authorAlzeebaree, Radhwan
dc.contributor.authorAljumaili, Omar
dc.contributor.authorNis, Anil
dc.contributor.authorGulsan, Mehmet Eren
dc.contributor.authorHumur, Ghassan
dc.contributor.authorCevik, Abdulkadir
dc.date.accessioned2024-09-11T19:52:31Z
dc.date.available2024-09-11T19:52:31Z
dc.date.issued2018
dc.departmentİstanbul Gelişim Üniversitesien_US
dc.description.abstractIn this paper, mechanical and short-term durability properties of fly ash and slag based geopolymer concretes (FAGPC-SGPC) were investigated. The alkaline solution was prepared with a mixture of sodium silicate solution (Na2SiO3) and sodium hydroxide solution (NaOH) for geopolymer concretes. Ordinary Portland Cement (OPC) concrete was also produced for comparison. Main objective of the study was to examine the usability of geopolymer concretes instead of the ordinary Portland cement concrete for structural use. In addition to this, this study was aimed to make a contribution to standardization process of the geopolymer concretes in the construction industry. For this purpose; SGPC, FAGPC and OPC specimens were exposed to sulfuric acid (H2SO4), magnesium sulfate (MgSO4) and sea water (NaCl) solutions with concentrations of 5%, 5% and 3.5%, respectively. Visual inspection and weight change of the specimens were evaluated in terms of durability aspects. For the mechanical aspects; compression, splitting tensile and flexural strength tests were conducted before and after the chemical attacks to investigate the residual mechanical strengths of geopolymer concretes under chemical attacks. Results indicated that SGPC (100% slag) is stronger and durable than the FAGPC due to more stable and strong cross-linked alumina-silicate polymer structure. In addition, FAGPC specimens (100% fly ash) showed better durability resistance than the OPC specimens. However, FAGPC specimens (100% fly ash) demonstrated lower mechanical performance as compared to OPC specimens due to low reactivity of fly ash particles, low amount of calcium and more porous structure. Among the chemical environments, sulfuric acid (H2SO4) was most dangerous environment for all concrete types.en_US
dc.identifier.doi10.12989/acc.2018.6.4.345
dc.identifier.endpage362en_US
dc.identifier.issn2287-5301
dc.identifier.issn2287-531X
dc.identifier.issue4en_US
dc.identifier.scopus2-s2.0-85052485545en_US
dc.identifier.startpage345en_US
dc.identifier.urihttps://doi.org/10.12989/acc.2018.6.4.345
dc.identifier.urihttps://hdl.handle.net/11363/7965
dc.identifier.volume6en_US
dc.identifier.wosWOS:000442924600002en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherTechno-Pressen_US
dc.relation.ispartofAdvances In Concrete Constructionen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.snmz20240903_Gen_US
dc.subjectfly ash/slag based geopolymer concrete (FAGPC)/(SGPC)en_US
dc.subjectsulfuric aciden_US
dc.subjectmagnesium sulfateen_US
dc.subjectsea wateren_US
dc.titleMechanical and durability properties of fly ash and slag based geopolymer concreteen_US
dc.typeArticleen_US

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