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

Patent metadata

Field	Value
Publication number	US-2018339943-A1
Application number	US-201816049399-A
Country	US
Kind code	A1
Filing date	Jul 30, 2018
Priority date	May 15, 2017
Publication date	Nov 29, 2018
Grant date	—

Abstract

The invention comprises a composition 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 invention also comprises a cementitious material comprising a hydraulic cement and a natural pozzolan selected from hyaloclastite, sideromelane, tachylite or combination or mixtures thereof, wherein the natural pozzolan has a volume-based mean particle size of less than or equal to approximately 40 μm. The invention further comprises a cementitious-based material comprising aggregate, a cementitious material comprising a hydraulic cement and a natural pozzolan selected from hyaloclastite, sideromelane, tachylite or combination or mixtures thereof, wherein the natural pozzolan has a volume-based mean particle size of less than or equal to approximately 40 μm and water sufficient to hydrate the cementitious material. A method of using the composition of the present invention is also disclosed.

First claim

1 - 19 . (canceled)

20 . A composition formed from a molten mineral that has been quenched by water to form a fragmented, solid mineral, wherein the mineral comprises approximately 43% to approximately 57% by weight SiO 2 , wherein the mineral comprises approximately 10% to approximately 99% by weight amorphous form and wherein the mineral is reduced in size to a plurality of particles having a volume-based mean particle size of less than or equal to approximately 20 μm.

21 . The composition of claim 20 , wherein the mineral comprises approximately 15% to approximately 95% by weight amorphous form.

22 . The composition of claim 20 , wherein the mineral comprises approximately 50% to approximately 95% by weight amorphous form.

23 . The mixture of claim 20 , wherein the mineral comprises approximately 43% to approximately 53% by weight SiO 2 .

24 . The mixture of claim 20 , wherein the mineral comprises approximately 53% to approximately 57% by weight SiO 2 .

25 . The composition of claim 20 , wherein the mineral is basaltic or intermediate.

26 . The composition of claim 20 , wherein the mineral has a volume-based mean particle size of less than or equal to approximately 10 μm.

27 . The composition of claim 20 , wherein the mineral has a volume-based mean particle size of less than or equal to approximately 5 μm.

28 . A mixture comprising:
a composition formed from a molten mineral that has been quenched by water to form a fragmented, solid mineral, wherein the mineral comprises approximately 43% to approximately 57% by weight SiO 2 , wherein the mineral comprises approximately 10% to 99% by weight amorphous form, wherein the mineral is reduced in size to a plurality of particles having a volume-based mean particle size of less than or equal to approximately 40 μm and wherein the plurality of particles have pozzolanic properties; and a hydraulic cement.

29 . The mixture of claim 28 , wherein the mineral comprises approximately 15% to approximately 95% by weight amorphous form.

30 . The mixture of claim 28 , wherein the mineral comprises approximately 50% to approximately 95% by weight amorphous form.

31 . The mixture of claim 28 , wherein the mineral is basaltic.

32 . The mixture of claim 28 , wherein the mineral is intermediate.

33 . The mixture of claim 28 , wherein the mineral comprises approximately 43% to approximately 53% by weight SiO 2 .

34 . The mixture of claim 28 , wherein the mineral comprises approximately 53% to approximately 57% by weight SiO 2 .

35 . The mixture of claim 28 , wherein the mineral has a volume-based mean particle size of less than or equal to approximately 20 μm.

36 . The mixture of claim 28 , wherein the mineral has a volume-based mean particle size of less than or equal to approximately 10 μm.

37 . The mixture of claim 28 , wherein the mineral has a volume-based mean particle size of less than or equal to approximately 5 μm.

38 . The mixture of claim 37 , wherein the mineral comprises approximately 50% to approximately 95% by weight amorphous form.

39 . The mixture of claim 38 further comprising aggregate and water sufficient to hydrate the hydraulic cement.

Assignees

• Ciuperca Romeo Ilarian

Inventors

• Ciuperca Romeo Ilarian

Classifications

• C04B28/04

  Portland cements · CPC title

• C04B18/02

  Agglomerated materials {, e.g. artificial aggregates} · CPC title

• C04B7/12 Primary

  Natural pozzuolanas; Natural pozzuolana cements; {Artificial pozzuolanas or artificial pozzuolana cements other than those obtained from waste or combustion residues, e.g. burned clay; Treating inorganic materials to improve their pozzuolanic characteristics (cements containing slag C04B7/14)} · CPC title

• C04B14/04

  Silica-rich materials; Silicates · CPC title

• C04B12/005

  Geopolymer cements, e.g. reaction products of aluminosilicates with alkali metal hydroxides or silicates · CPC title