HIGHLIGHTS
SUMMARY
The mechanical properties would be further improved by adding lime to the pozzolanic mineral mixture. In a study by Chen et_al, blast furnace slag (GGBS) was used to make geopolymer pastes in which sludge ash was used as a precursor. Effect of sludge dewatered and stabilized by hydrated lime on the physicochemical properties of slag-based geopolymers To improve the hardness and mechanical performance of geopolymers, it is necessary to optimize the curing conditions, by heat curing and/ or inclusion of a high calcium addition, and to incorporate an aluminosilicate binder with a calcium . . .
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