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US 11,851,373 B1Granted
Compositions
AssigneeWestlake Royal Roofing LLC
InventorsRussell L. Hill, Robert F. Rathbone, Amitabha Kumar, Darren Schulz, Eric Miller, James Hill, Hamed Maraghechi, Jacob Myers
Life of this patent
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Abstract
Compositions such as concrete compositions are described for use in building materials and products. The composition may comprise an aggregate composition comprising a particulate suppressing component and a cement. The composition may have an impact resistance of at least Class 1 as measured under ANSI/FM 4473. Methods of preparing and using such compositions are also described.
Claims21
A concrete composition comprising:
- an aggregate composition comprising a particulate suppressing component, wherein the particulate suppressing component comprises an aggregate that has an average particle size (d50) of 0.1 mm to 5 mm and a d10 particle size greater than or equal to 200 mesh and less than or equal to 70 mesh;
- and
- a hydraulic cement;
- wherein dry machining of the concrete composition results in exposures under a Permissible Exposure Limit (PEL) of 50 micrograms of respirable crystalline silica per cubic meter of air (50 μg/m3) as an 8-hour time-weighted average as defined by 29 CFR 1926.1153;
- and
- wherein the composition has an impact resistance of at least Class 3 as measured under ANSI/FM 4473.
3 more elements
A roof tile comprising:
- an aggregate composition comprising a particulate suppressing component, wherein the particulate suppressing component comprises an aggregate that has an average particle size (d50) of 0.1 mm to 5 mm and a d10 particle size greater than or equal to 200 mesh and less than or equal to 70 mesh;
- and
- a cement;
- wherein the roof tile comprises less than 25% siliceous sand;
- wherein dry machining of the roof tile results in exposures under a Permissible Exposure Limit (PEL) of 50 micrograms of respirable crystalline silica per cubic meter of air (50μg/m3) as an 8-hour time-weighted average as defined by 29 CFR 1926.1153;
- and
- wherein the roof tile has an impact resistance of at least Class 1 as measured under ANSI/FM 4473.
4 more elements
Dependencies are inferred from the claim text.