As the byproduct in fluoride production, fluorogypsum is of slow hydration and poor concreting, playing a role of threat to environmental safety. Microstructure and performances of sludge soil stabilized by fluorogypsum-based cementitious binder were investigated in comparison with the solidified sludge blended with quicklime (LM) and PC32.5 cement (PC32.5) in this paper. The water content (wt%), pH value, unconfined compressive strength (UCS) and strength loss after soaking in water for 24 h of the solidified sludge with different solidifications were discussed. The solidified sludge blended ...
