A comparative analysis of curing regimes of GGBFS and fly ash based alkali activated concrete

Alkali-activated concrete (AAC) is a sustainable concrete system using alkali-activating aluminosilicate precursors (e. g., fly ash (FA), slag). AAC requires careful curing as its mechanical and durability properties are majorly affected by its curing conditions. This study presents an experimental work covering the influence of various curing regimes on the shortterm mechanical properties of AAC formulated with a blend of ground granulated blast furnace slag (GGBFS) and FA on different compressive strengths. The hybrid GGBFS-FA based AAC cured under ambient or membrane conditions has shown good strength development kinetics and emerges as a practical, energy-efficient, and environmentally sustainable alternative to conventional concrete for structural applications.