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Abstract In this research the influence of thermal treatment of cement kiln dust on the reactivity of geopolymer slag-based composites was studied. Three different sources of CKD were used. For each CKD source, two thermal treatment temperatures were investigated (700 and 800 {u02DA}C). Three different water to binder ratios 12%, 16% and 20% were investigated. Three curing regimes; Ambient temperature, oven curing and microwave were tested and investigated. The compressive strength was measured and SEM and EDX techniques were carried out in order to interpret the results |