“…Numerous studies have substantiated that enhancing the ratio of alkaline activator, thereby reducing the pH of geopolymer binders, reduces the setting time. This enhancement reinforces the influence of mineral fillers, primarily FA, GBFA, RHA, SF, and MK, on the rheological properties of UHPGPC [ 32 , 43 , 47 , 60 ]. Multiple research studies have found that the water demand in UHPGPC with SF increases as the proportion of SF in the mixture increases [ 32 , 43 , 47 , 60 ].…”