Warm mix asphalt binder compositions containing lubricating additives
AssigneeA.L.M. Holding Company
InventorsGerald H. Reinke, Gaylon L. Baumgardner, Steven L. Engber
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Abstract
The present invention provides a functionally dry warm mix asphalt binder composition modified with lubricating agents or additives that can be mixed with aggregate and compacted at temperatures substantially below asphalt binder compositions that do not contain the disclosed lubricating additives.
Claims19
An asphalt paving composition comprising functionally dry, essentially water-free, non-foamed asphalt binder containing lubricating additive comprising a phosphorus derivative mixed with uncompacted aggregate to provide aggregate coated with binder and lubricating additive suitable for use as a warm mix paving composition;
- wherein the warm mix paving composition is produced at a warm mix temperature which is at least 30° F. lower than a comparison production temperature needed to produce a comparison paving composition containing binder-coated aggregate without the lubricating additive.
Dependencies are inferred from the claim text.