Abstract
Effect of Fly ash blending on self-compacting geopolymer concrete (SCGC) in terms of durability and microstructure is discussed here. 10% Class C fly ash was incorporated into Class F fly ash in self-compacting geopolymer, to alter the conventional methods of heat curing and aiming for commercialisation in concrete production. Geopolymer (GP) synthesis of low calcium fly ash was prepared using combination of sodium hydroxide and sodium silicate, to achieve M30 grade concrete. Tests such as acid resistance, sulphate resistance, water absorption, sorption test, chloride penetration and accelerated corrosion were performed on account of durability, and interstitial characteristics were diagnosed using SEM analysis. Results prove that the inclusion of Class C fly ash did not show any detrimental effects in SCGC, and are viable for use in hazardous environmental conditions.
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