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Effect of Fly Ash characteristics, sodium-based alkaline activators, and process variables on the compressive strength of siliceous Fly Ash geopolymers with microstructural properties: A comprehensive review

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dc.citedby6
dc.contributor.authorVenkatesan G.en_US
dc.contributor.authorAlengaram U.J.en_US
dc.contributor.authorIbrahim S.en_US
dc.contributor.authorIbrahim M.S.I.en_US
dc.contributor.authorid59166600700en_US
dc.contributor.authorid26533874300en_US
dc.contributor.authorid7202480735en_US
dc.contributor.authorid57199802346en_US
dc.date.accessioned2025-03-03T07:42:28Z
dc.date.available2025-03-03T07:42:28Z
dc.date.issued2024
dc.description.abstractGeopolymer concrete (GPC) exhibits enhanced performance compared to conventional concrete across various dimensions. These include decreased CO2 emissions, elevated mechanical strength, improved thermal insulation, greater fire resistance, the valorization of industrial wastes and increased efficiency in energy conservation and production costs. This review focuses on the impact of 11 factors such as class F Fly Ash (FA) characteristics (fineness, SiO2/Al2O3 ratio, and iron content), sodium-based alkaline activators parameters such as molarity of sodium hydroxide (SH), Silicate Modulus (SM) of sodium silicate (SS) solution, ratio of SS/SH solution, alkaline liquid to binder ratio, water to binder (w/b) ratio, H2O/Na2Oequivalent, and process variables such as heat curing temperature and heating duration on the compression strength of low calcium (class F or siliceous) FA-based geopolymers (GP). Existing literature explicitly indicates that the molarity of NaOH solution is the primary strength parameter that significantly affects the compression strength of the GPC, among other factors. The range of alkaline activator parameters and heat curing temperature contingent on the SiO2/Al2O3 ratio of FA moreover accurately the reactive SiO2/Al2O3. Among all factors, one of the crucial parameter is the water content because of its importance in geopolymerization; the additional water released during the chemical reaction has to be considered in the mix design. The aforementioned eleven parameters are analysed and reported in the development of the compressive strength. ? 2024 Elsevier Ltden_US
dc.description.natureFinalen_US
dc.identifier.ArtNo136808
dc.identifier.doi10.1016/j.conbuildmat.2024.136808
dc.identifier.scopus2-s2.0-85195602113
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85195602113&doi=10.1016%2fj.conbuildmat.2024.136808&partnerID=40&md5=e4485be3a42c455d1b1d557bc7d6b174
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/36446
dc.identifier.volume437
dc.publisherElsevier Ltden_US
dc.sourceScopus
dc.sourcetitleConstruction and Building Materials
dc.subjectAlkalinity
dc.subjectCompressive strength
dc.subjectConcretes
dc.subjectCuring
dc.subjectFire resistance
dc.subjectFly ash
dc.subjectGeopolymers
dc.subjectInorganic polymers
dc.subjectMolar ratio
dc.subjectSilicates
dc.subjectSilicon
dc.subjectSlags
dc.subjectSodium hydroxide
dc.subjectThermal insulation
dc.subjectAlkaline activators
dc.subjectClass F fly ash
dc.subjectCompression strength
dc.subjectCuring temperature
dc.subjectFly ash characteristics
dc.subjectGeopolymer
dc.subjectGeopolymer concrete
dc.subjectMolarity
dc.subjectProcess Variables
dc.subjectSiO2/al2O3 ratio
dc.subjectSilica
dc.titleEffect of Fly Ash characteristics, sodium-based alkaline activators, and process variables on the compressive strength of siliceous Fly Ash geopolymers with microstructural properties: A comprehensive reviewen_US
dc.typeReviewen_US
dspace.entity.typePublication
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