An activator composition for a non-OPC hydraulically-active material comprises CaO or lime and a polycarboxylate-ether-based (PCE) superplasticiser, and is mixable with a hydraulically active material comprising ground granulated blast furnace slag (GGBS) and/or pulverized fuel ash (PFA) to form a cementitious binder. The cementitious binder does not comprise any Portland cement and is, therefore, more environmentally friendly.

A process for producing cement includes combining a cement precursor and a wax, wherein the wax includes alkyl ketene dimer wax and/or alkenyl ketene dimer wax, grinding the cement precursor and the wax to yield cement grains coated with the wax. A cement includes cement powder grains and a coating of wax on the Portland cement powder grains, wherein the wax includes alkyl ketene dimer wax and/or alkenyl ketene dimer wax. A process for making cementitious material includes combining a cement with water to yield a slurry, wherein the cement includes cement powder grains and a coating of wax on the cement powder grains, wherein the wax includes alkyl ketene dimer wax and/or alkenyl ketene dimer wax, and allowing the slurry to set.

A process for producing cement includes combining a cement precursor and a wax, wherein the wax includes alkyl ketene dimer wax and/or alkenyl ketene dimer wax, grinding the cement precursor and the wax to yield cement grains coated with the wax. A cement includes cement powder grains and a coating of wax on the Portland cement powder grains, wherein the wax includes alkyl ketene dimer wax and/or alkenyl ketene dimer wax. A process for making cementitious material includes combining a cement with water to yield a slurry, wherein the cement includes cement powder grains and a coating of wax on the cement powder grains, wherein the wax includes alkyl ketene dimer wax and/or alkenyl ketene dimer wax, and allowing the slurry to set.

Methods and systems are provided for forming a cement material incorporating an industrial byproduct. In at least one embodiment, a method for forming a cement material includes maintaining a slag as an at least partially molten material and adding one or additives to modify the at least partially molten material. The method further comprises cooling the at least partially molten material to comprise a solid non-metallic fraction with a substantially amorphous molecular structure and a metal fraction that is substantively separated from the solid non-metallic fraction.

Methods and systems are provided for forming a cement material incorporating an industrial byproduct. In at least one embodiment, a method for forming a cement material includes maintaining a slag as an at least partially molten material and adding one or additives to modify the at least partially molten material. The method further comprises cooling the at least partially molten material to comprise a solid non-metallic fraction with a substantially amorphous molecular structure and a metal fraction that is substantively separated from the solid non-metallic fraction.

Methods and systems are provided for forming a cement material incorporating an industrial byproduct. In at least one embodiment, a method for forming a cement material includes maintaining a slag as an at least partially molten material and adding one or additives to modify the at least partially molten material. The method further comprises cooling the at least partially molten material to comprise a solid non-metallic fraction with a substantially amorphous molecular structure and a metal fraction that is substantively separated from the solid non-metallic fraction.

Methods and systems are provided for forming a cement material incorporating an industrial byproduct. In at least one embodiment, a method for forming a cement material includes maintaining a slag as an at least partially molten material and adding one or additives to modify the at least partially molten material. The method further comprises cooling the at least partially molten material to comprise a solid non-metallic fraction with a substantially amorphous molecular structure and a metal fraction that is substantively separated from the solid non-metallic fraction.