Effect of high temperature, acid and sulfate on properties of alkali-activated lightweight aggregate concretes

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dc.authoridCELIKTEN, SERHAT/0000-0001-8154-7590
dc.contributor.authorSaridemir, Mustafa
dc.contributor.authorCelikten, Serhat
dc.date.accessioned2024-11-07T13:31:20Z
dc.date.available2024-11-07T13:31:20Z
dc.date.issued2022
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractThe primary aim of the present study is to research the effect of binary blended on the mechanical, microstructural and durability properties of alkali activated lightweight aggregate concretes (AALWACs) used basaltic pumice (BP) as lightweight aggregate. Ground granulated blast furnace slag (GGBFS) and fly ash (FA) as precursors are activated with the mixtures of sodium silicate (Na2SiO3) and sodium hydroxide (NaOH) in diverse SiO2/Na2O ratios (Ms). The unit weight, compressive strength (f(c)), flexural strength (f(fs)) and splitting tensile strength (f(sts)) and water absorption of AALWACs are determined. Moreover, the f(c) and weight loss of AALWACs exposed to high temperature, acid and sulfate effects are determined separately. The results show that higher strength can be obtained from the AALWACs compared to the control concrete (C) produced with only Portland cement. The effects of high temperatures on the microstructures of AALWACs are examined by X-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive spectroscopy (EDS) and polarized light microscope (PLM) analyses. As the temperature exposed to the AALWACs increases, SEM and PLM analyses indicate that the deterioration, alteration, discoloration, pore and crack in their microstructures increase.
dc.description.sponsorshipNigde Omer Halisdemir University Scientific Research Projects Committee [FEB2018/10-BAGEP]
dc.description.sponsorshipThis study is supported by Nigde Omer Halisdemir University Scientific Research Projects Committee (Project No: FEB2018/10-BAGEP).
dc.identifier.doi10.1016/j.conbuildmat.2021.125886
dc.identifier.issn0950-0618
dc.identifier.issn1879-0526
dc.identifier.scopus2-s2.0-85120454913
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.conbuildmat.2021.125886
dc.identifier.urihttps://hdl.handle.net/11480/14778
dc.identifier.volume317
dc.identifier.wosWOS:000736961400001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Sci Ltd
dc.relation.ispartofConstruction and Building Materials
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241106
dc.subjectBasaltic pumice
dc.subjectBlast furnace slag
dc.subjectFly ash
dc.subjectAlkali-activated lightweight aggregate concrete
dc.subjectMechanical, microstructural and durability properties
dc.titleEffect of high temperature, acid and sulfate on properties of alkali-activated lightweight aggregate concretes
dc.typeArticle

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