Cementitious composition incorporating high levels of glass aggregate for producing solid surfaces
AssigneePolycor Vetrazzo, Inc.
InventorDonald Martin McPherson
Life of this patent
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Abstract
A cementitious compostion for high density, low porosity sheet-form building materials having solid surfaces is comprised of cement, pozzolans, and a high percentage of fine and/or coarse glass aggregate.
Claims24
A cementitious composition for a sheet-form material having an exposed solid surface comprising cement, pozzolan, and aggregate glass, wherein said pozzolan is present at about 5% to about 20% by weight, said cement is present at about 3% to about 20% by weight, the pozzolan to cement ratio is between about 0.25 to 4, and the aggregate glass is at least about 60% by weight of the composition, and wherein the size of the aggregate glass is about equal to or greater than 12 mesh glass aggregate.
A cementitious composition for a sheet-form material having an exposed solid surface comprising
- cement,
- pozzolan comprising at least one pozzolan selected from the group consisting of metakaolin, wollastonite, micro-silica and finely ground glass powder, said finely ground glass powder being made from recycled glass, and aggregate glass comprised of recycled fine and coarse aggregate glass, the size of the fine aggregate glass being about or less than 12 mesh glass aggregate, the cement being present at about 5% to about 20% by weight, and the pozzolan to cement ratio being from about 0.25 to about 1, and wherein the aggregate glass and finely ground glass powder constitute at least about 60% by weight of the composition.
A cementitious composition for a sheet-form material having an exposed solid surface comprising
- ordinary Portland cement (OPC) selected from the group consisting of Type I OPC and Type III OPC,
- pozzolan comprising finely ground glass powder selected from the group consisting of 100 mesh, 120 mesh and 300 mesh glass powder, and
- aggregate glass comprised of fine and coarse aggregate glass,
- the OPC being present at about 3% to about 20% by weight, and the pozzolan to cement ratio being between about 0.25 to 4, and wherein the aggregate glass and finely ground glass powder combined are at least about 60% by weight of the composition.
A cementitious composition comprising:
- (a) about 3% to about 20% ordinary Portland cement (OPC);
- (b) about 5% to about 20% by weight pozzolan, with the pozzolan to cement ratio between about 0.25:1 to 4:1;
- and
- (c) fine and/or course glass aggregate, which is at least 60% by weight of the composition with a majority of the glass aggregate about equal to or greater than 12 mesh.
Dependencies are inferred from the claim text.