Mechanical performance of FRP-confined geopolymer concrete under seawater attack

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dc.authoridMohammedameen, Alaa/0000-0002-7933-8295
dc.authoridGülşan, Mehmet Eren/0000-0002-8991-0363
dc.authoridAlzeebaree, Radhwan/0000-0003-2496-3322;
dc.contributor.authorAlzeebaree, Radhwan
dc.contributor.authorCevik, Abdulkadir
dc.contributor.authorMohammedameen, Alaa
dc.contributor.authorNis, Anil
dc.contributor.authorGulsan, Mehmet Eren
dc.date.accessioned2024-09-11T19:52:19Z
dc.date.available2024-09-11T19:52:19Z
dc.date.issued2020
dc.departmentİstanbul Gelişim Üniversitesien_US
dc.description.abstractIn the study, mechanical properties and durability performance of confined/unconfined geopolymer concrete and ordinary concrete specimens were investigated under ambient and seawater environments. Some of the specimens were confined by carbon fiber and basalt fiber-reinforced polymer fabric materials with one layer and three layers under chloride and ambient environments to observe mechanical strength contribution and durability performances of these hybrid types of materials. These fiber-reinforced polymer fabric materials were also evaluated in terms of retrofit purposes especially in the marine structures. In addition, microstructural evaluation is also conducted using scanning electron microscope on geopolymer concrete and ordinary concrete specimens to observe the amount of deterioration in microscale due to the chloride attacks. Results indicated that confined specimens exhibited enhanced strength, ductility, and durability properties than unconfined specimens, and the degree of the enhancement depended on the fiber-reinforced polymer confinement type and the number of fiber-reinforced polymer layer. Specimens confined by carbon fabrics with three layers showed superior mechanical properties and durability performance against chloride attack, while specimens confined by basalt fabrics with one layer exhibited low performance, and unconfined specimens showed the worst performance. Both fiber-reinforced polymer fabric materials can be utilized as retrofit materials in structural elements against chloride attacks. The results also pointed out that seawater attack reduced the ductility performance of the geopolymer concrete and ordinary concrete specimens. Furthermore, geopolymer concrete specimens were found more durable than the ordinary concrete specimens, and both types of concretes exhibited similar fracture properties, indicating that geopolymer concrete can be utilized for structural elements instead of ordinary concretes.en_US
dc.identifier.doi10.1177/1369433219886964
dc.identifier.endpage1073en_US
dc.identifier.issn1369-4332
dc.identifier.issn2048-4011
dc.identifier.issue6en_US
dc.identifier.scopus2-s2.0-85075160555en_US
dc.identifier.startpage1055en_US
dc.identifier.urihttps://doi.org/10.1177/1369433219886964
dc.identifier.urihttps://hdl.handle.net/11363/7943
dc.identifier.volume23en_US
dc.identifier.wosWOS:000497101300001en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherSage Publications Incen_US
dc.relation.ispartofAdvances In Structural Engineeringen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.snmz20240903_Gen_US
dc.subjectbasalt fiber-reinforced polymeren_US
dc.subjectcarbon fiber-reinforced polymeren_US
dc.subjectconfinementen_US
dc.subjectgeopolymer concreteen_US
dc.subjectseawater attacken_US
dc.titleMechanical performance of FRP-confined geopolymer concrete under seawater attacken_US
dc.typeArticleen_US

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