Chemically inert concrete composition
AssigneeMagneco/Metrel, Inc.
InventorsDominic Pautler, Michael W. Anderson, Lara Binz, Daniel Snyder
Life of this patent
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Abstract
A chemically inert concrete composition includes, based on dry weight, about 50% to about 95% by weight glass particles and about 3% to about 40% by weight colloidal silica particles. Optional additional chemically inert ingredients can be included in amounts of about 3% to about 40% by weight. The concrete composition is substantially or totally free of Group I and Group II metal oxides, exclusive of the glass particles, and is substantially or totally free of cement.
Claims18
A concrete composition, comprising based on dry weight:
- about 50% to about 95% by weight pulverized recycled glass particles;
- and
- about 3% to about 40% by weight colloidal silica particles;
- wherein the concrete composition is free of organic carriers and substantially free of Group I and Group II metal oxides exclusive of the glass particles, and the colloidal silica particles are provided as a colloidal silica dispersion that includes about 30-60% by weight colloidal silica particles having a median particle diameter of about 1-100 nanometers and about 40-70% by weight water.
A concrete composition, comprising based on dry weight:
- about 50% to about 95% by weight pulverized recycled glass particles;
- about 3% to about 40% by weight colloidal silica particles;
- and
- about 3% to about 40% by weight of one or more additional ingredients selected from the group consisting of SiO2, Al2O3, compounds thereof, and combination thereof;
- wherein the concrete composition is free of organic carriers and substantially free of cement, and the colloidal silica particles are provided as a colloidal silica dispersion that includes about 30-60% by weight colloidal silica particles having a median particle diameter of about 1-100 nanometers and about 40-70% by weight water.
A concrete composition, comprising based on dry weight:
- about 50% to about 95% by weight pulverized recycled glass particles selected from the group consisting of soda-lime glass, lead glass, borosilicate glass, and combinations thereof;
- and
- about 3% to about 40% by weight colloidal silica particles;
- wherein the concrete composition is free of organic carriers and comprises less than about 1.5% by weight Group I and Group II metal oxides exclusive of the glass particles, and the colloidal silica particles are provided as a colloidal silica dispersion that includes about 30-60% by weight colloidal silica particles having a median particle diameter of about 1-100 nanometers and about 40-70% by weight water.
Dependencies are inferred from the claim text.