Development of Flash-Calcined Sediment and Blast Furnace Slag Ternary Binders

Partial cement replacement by low-carbon-impact additions has the potential to reduce CO2 emissions. The aim of this study is development a ternary binder that includes ordinary Portland (OPC), ground granulated blast furnace slag (GGBS), and flash-calcined sediment (FCS). To upgrade dredged mineral material into FCS, new heat treatment, i.e., flash calcination, was used. used materials were physically, chemically, mineralogically characterized. mixture design method optimize blended binders. A model developed validated for prediction 90-day compressive strength mortars composed OPC (C), GGBS (S), FCS (F). Five mixes, reference RM (100% OPC), binary mix (50% 50% GGBS), three mixes with rates 10%, 15%, 20% characterized in fresh hardened states. results show incorporation reduced workability increased their densities. Moreover, initial setting time delayed, hydration peak decreased. strengths containing 10% higher than those RM. In conclusion, use 40% an efficient substitute OPC.