Abstract The purpose of this study was to evaluate the possibility using ground waste-expanded perlite (WP) as a sustainable replacement for granulated blast-furnace slag (GGBFS) precursor in alkali-activated systems. nature and amount hydration products, microstructure, compressive strength development were investigated mixtures where GGBFS substituted with 10, 20 40% by weight WP activated tw...

Using ground granulated blast-furnace slag (GGBS) under different alkaline conditions, we studied the mechanisms and extents of Cr(VI) reduction and sorption and compared them to reactions with Portland cement (PC). We also investigated the effects of mixing PC/GGBS ratios on Cr(VI) dissolution after carbonating the substrates. We observed a complete sorption and reduction of Cr(VI) to Cr(III) ...