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US 2022/0153641 A1Published application
Hyaloclastite, sideromelane or tachylite pozzolan-based geopolymer cement and concrete and method of making and using same
OwnerRomeo Ilarian Ciupercainventor
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Abstract
The invention comprises a cementitious material comprising a natural pozzolan selected from hyaloclastite, sideromelane or tachylite, wherein the natural pozzolan has a volume-based mean particle size of less than or equal to 40 μm. The cementitious material also comprising an aqueous alkaline activating solution suitable for forming a geopolymer. A method making a cementitious material is also disclosed.
Claims20
A cementitious material comprising:
- a natural pozzolan selected from hyaloclastite, sideromelane, tachylite or combinations or mixtures thereof, wherein the natural pozzolan has a volume-based mean particle size of less than or equal to approximately 40 μm;
- and
- an aqueous alkaline activating solution suitable for forming a geopolymer, wherein the aqueous alkaline activating solution comprises:
- a hydroxide;
- and
- a water-soluble alkali metal silicate.
3 more elements
A cementitious material comprising:
- a natural pozzolan selected from hyaloclastite, sideromelane, tachylite or combinations or mixtures thereof, wherein the natural pozzolan has a volume-based mean particle size of less than or equal to approximately 40 μm;
- and
- an aqueous alkaline activating solution suitable for forming a geopolymer, wherein the aqueous alkaline activating solution comprises:
- a hydroxide selected from NaOH or KOH;
- and
- a water-soluble alkali metal silicate selected from sodium silicate or potassium silicate.
3 more elements
A method of making a cementitious material comprising:
- combining a natural pozzolan and an aqueous alkaline activating solution suitable for forming a geopolymer;
- wherein the natural pozzolan is selected from hyaloclastite, sideromelane, tachylite or combinations or mixtures thereof, wherein the natural pozzolan has a volume-based mean particle size of less than or equal to approximately 40 μm;
- and
- wherein the aqueous alkaline activating solution comprises a hydroxide and a water-soluble alkali metal silicate.
1 more element
Dependencies are inferred from the claim text.