Ergon Asphalt & Emulsions, Inc.

A.l.m. Holding Company

A.i.m. Holding Company

Andrew Hanz

Gaylon L Baumgardner

Gerald H Reinke

Disclosed are asphalt binder compositions and methods for making such compositions with pure sterol:crude sterol blends. The sterol blends improve various rheological properties.

Sterol blends as an additive in asphalt binder

Pavement aging can be reduced by applying to an asphalt-containing pavement a topcoat layer or a surface treatment containing asphalt binder with sterols.

Sterol additive in asphalt pavement

Pavement aging can be reduced by applying to an asphalt-containing pavement a topcoat layer or a surface treatment containing asphalt binder emulsion with sterols.

Asphalt emulsion surface treatment containing sterol

Disclosed are binders and methods for making such binders with crude sterols. The crude sterols improve various rheological properties of the binders. The disclosure provides a method for slowing the aging rate of aged asphalt binder comprising adding a crude sterol to an asphalt binder, wherein the asphalt binder comprises both virgin asphalt binder, and reclaimed asphalt binder material comprising asphalt pavement (RAP), asphalt shingles (RAS) or combinations of RAP and RAS.

Crude sterol as an additive in asphalt binder

Disclosed are asphalt and asphalt binders and methods for making such compositions with sterols. The sterols improve various rheological properties. Also disclosed are methods of determining the changes or improvements of various rheoloical properties.

Method for identifying the extent of aging in an asphalt

Disclosed are asphalt binder compositions that contain at least one sterol or stanol additive, or blends of sterols and stanol additives, wherein the sterol or stanol additive is derived from an animal waste or manure source such as swine manure. These sterol and stanol-based additives improve various rheological properties of the asphalt binder compositions showing reduced and/or mitigated aging characteristics.

Use of sterols from animal waste as an additive in asphalt binder

Asphalt binder compositions and methods for making such compositions with pure sterol:crude sterol blends. The sterol blends improve various rheological properties.

Growing community of inventors

La Crosse, WI, United States of America

Andrew Hanz