The present disclosure relates to admixtures, such as powdered admixtures, for concrete comprising sulfate, formate, water reducer and supplementary cementitious material. Preferably the admixture also comprises calcium carbonate. The admixtures of the invention enable higher levels of supplementary cementitious material to be used in concrete to reduce net embodied carbon. The present disclosure also describes preparations of the admixtures and uses thereof.
C04B 40/00 - Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
A solid component activator for use in a geopolymer cement containing a silico-aluminate material comprising a mixture of sodium silicate and sodium carbonate for activating the geopolymer cement by increasing reactivity of the silico-aluminate material in the geopolymer cement when forming geopolymer concrete.
C04B 7/28 - Cements from oil shales, residues or waste other than slag from combustion residues
C04B 28/00 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
A solid component activator for use in a geopolymer cement containing a silico-aluminate material comprising a mixture of sodium silicate and sodium carbonate for activating the geopolymer cement by increasing reactivity of the silico-aluminate material in the geopolymer cement when forming geopolymer concrete.
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