US 2022/0153641 A1

Hyaloclastite, sideromelane or tachylite pozzolan-based geopolymer cement and concrete and method of making and using same

(22) 01.02.2022

(43) 19.05.2022

(57) 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.

(71) Romeo Ilarian Ciuperca, Atlanta, GA (US)

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