Alkaline activated cement methods and compositions
AssigneeMaterial. Evolution Ltd.
InventorsEric WITT, Elizabeth GILLIGAN
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AssigneeMaterial. Evolution Ltd.
InventorsEric WITT, Elizabeth GILLIGAN
Estimating the term…
Provided herein are methods and compositions utilizing one or more cementitious replacement materials, one or more alkaline activating materials, and, optionally one or more bonding materials and/or one or more setting time enhancer materials. The one or more cement precursors comprises one or more of non-radioactive nuclear waste; swarf, insoluble hydroxide of carbonate salts, radioactive wastes, petroleum coke, spent solvent wastes, electroporating and other metal finishing wastes, dioxin-bearing wastes, chlorinated aliphatic hydrocarbons production, wood preserving wastes, petroleum refinery wastewater treatment sludges, multisource leachate, organic chemicals manufacturing waste, pesticide manufacturing waste, petroleum refining waste, human pharmaceuticals manufacturing waste; veterinary pharmaceuticals manufacturing waste; inorganic pigment manufacturing waste; inorganic chemicals manufacturing waste; explosives manufacturing waste; iron and/or steel production waste; primary aluminum production waste; secondary lead processing waste; ink formulation waste; coking waste; or a combination thereof. The one or more alkaline activating agents comprises potassium silicate, potassium hydroxide, sodium hydroxide, sodium silicate, calcium hydroxide, magnesium hydroxide, reactive magnesium oxide, calcium chloride, sodium carbonate, silicone dioxide, sodium aluminate, calcium sulfate, sodium sulfate, or dolomite, or a combination thereof. The system comprises a vertical impact mill.
A dry particulate composition comprising (i) one or more cement precursors;
A wet cement composition comprising
A method for producing a geopolymer cement comprising subjecting one or more cement precursors and one or more alkaline activating agent to a process comprising combining and treating the one or more cement precursors and the one or more alkaline activating agents to produce a geopolymer cement, wherein the method comprises at least one of (i) the method is a continuous method;
A system for producing a geopolymer cement comprising (i) a source of a cement precursor;
A network comprising a plurality of spatially separate geopolymer production systems, wherein each of the systems send information regarding one or more aspects of one or more processes at the system to a central processing unit.
A method for treating one or more cement precursors and one or more alkaline activating agents to produces a cementitious product, e.g., a geopolymer cement, wherein the method does not require, and does not utilize, grinding or milling and does not require, and does not utilize addition of exogenous heat to the materials, and wherein the materials are treated for less than 600, 500, 400, 300, 200, 100, 50, 40, 30, 25, 20, 17, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, or 2 seconds, and/or not more than 1000, 600, 500, 400, 300, 200, 100, 50, 40, 30, 25, 20, 17, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, or 3 seconds, preferably less than 30 seconds, more preferably less than 20 seconds, even more preferably less than 10 seconds.
A method for treating one or more starting materials to produce one or more cementitious products comprising introducing the one or more starting materials into an impact mixer, where they are subjected to impact mixing, to produce the one or more cementitious products.
A system for producing cementitious material, wherein the system comprises (i) one or more sources of starting materials operably connected to (ii) an impact mixer configured to treat the starting materials to produce a cementitious product.
A system for treating one or more starting materials to produce a cementitious product comprising (i) a first source of a first starting material;
Dependencies are inferred from the claim text.