Influence of elevated temperatures on the mechanical behavior of one-part coal ash geopolymer concrete with sodium metasilicate pentahydrate and sodium metasilicate anhydrous as alkaline activators

• Main Authors: Samadi M., Wong L.S., Murali G., Lim N.H.A.S., Ayeni I.S.
• Other Authors: 55915984400
• Format: Article
• Published: Elsevier Ltd 2025
• Subjects: Aluminosilicates; Ash handling; Ashes; Coal ash; Concrete mixtures; Deterioration; Fly ash; Geopolymers; Inorganic polymers; Microstructure; Sodium compounds; Alkaline activators; Concrete specimens; Elevated temperature; Geopolymer concrete; One parts; One-part coal ash geopolymer concrete; Pentahydrates; Sodium metasilicate; Sodium metasilicate anhydrous; Sodium metasilicate pentahydrate; Compressive strength

Geopolymers can be synthesized through either a one-part or two-part combination methodology. The aluminosilicate precursor is blended with an alkaline activator solution in the two-part mixture. Conversely, the one-part mixture technique incorporates water directly into the dry composite comprising...