An experimental study on fracture energy of alkali activated slag composites incorporated different fibers

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dc.contributor.authorYurt, Umit
dc.date.accessioned2021-12-01T18:47:34Z
dc.date.available2021-12-01T18:47:34Z
dc.date.issued2020
dc.department[Belirlenecek]en_US
dc.description.abstractThis paper intended to comparatively investigate the fracture behavior of alkali activated slag concrete (AASC) containing glass fiber (GF), basalt fiber (BF) and polypropylene fiber (PP). Sodium hydroxide (8 mol, 10 mol and 12 mol aqueous solutions) and sodium silicate, and three different fiber dosages (1 kg/m(3), 2 kg/m(3) and 3 kg/m(3)) were used in the production of the fiber reinforced alkali activated slag composites (FRAASC). Additionally, a relatively low activation temperature of 60 degrees C as a curing condition to activate the AASC specimens was adopted in terms of ensuring energy-effective production in the study. Three-point bending tests were conducted to determine the fracture energy (Gf) values on notched beam specimens. In the study, the Gf values were measured by calculating the area under the curve of load and crack mouth opening displacement (CMOD) values. In addition, destructive and non-destructive tests such as splitting tensile strength, compressive strength, dynamic modulus of elasticity (DMoE), ultrasonic pulse velocity, density and porosity were applied onto the hardened AASC specimens. Microstructure analysis was carried out by Energy-Dispersive X-ray Spectroscopy (EDX) and Scanning Electron Microscopy (SEM). As a result, usage of GFs, BFs and PPs increases the energy dissipation capacity and ductility of FRAASCs. An increase of 84% for Gf values was observed from the FRAASC specimens having 8 molarity of sodium hydroxide aqueous solutions with polypropylene fibers. Based on the test results, it can be clearly said that using of glass, basalt and polypropylene fiber is improving the ductile behavior of eco-efficient slag based alkali-activated composites.en_US
dc.identifier.doi10.1016/j.jobe.2020.101519
dc.identifier.issn2352-7102
dc.identifier.scopus2-s2.0-85086898871en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.jobe.2020.101519
dc.identifier.urihttps://hdl.handle.net/20.500.12684/10311
dc.identifier.volume32en_US
dc.identifier.wosWOS:000588052000091en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorYurt, Umit
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofJournal Of Building Engineeringen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAlkali-activated slag compositesen_US
dc.subjectFracture energyen_US
dc.subjectMicrostructural analysisen_US
dc.subjectBasalt fiberen_US
dc.subjectGlass fiberen_US
dc.subjectPolypropylene fiberen_US
dc.subjectMechanical-Propertiesen_US
dc.subjectReinforced Concreteen_US
dc.subjectEngineering Propertiesen_US
dc.subjectPolypropylene Fibersen_US
dc.subjectCompressive Strengthen_US
dc.subjectCement Industryen_US
dc.subjectSteel Fibersen_US
dc.subjectMix Designen_US
dc.subjectBehavioren_US
dc.subjectGeopolymeren_US
dc.titleAn experimental study on fracture energy of alkali activated slag composites incorporated different fibersen_US
dc.typeArticleen_US

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