FAA MIXTURE DESIGN PROCEDURE FOR ASPHALT-RUBBER CONCRETE.
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abstract
A mixture design procedure was developed to allow the use of asphalt-rubber binders in concrete for flexible airport pavements. The rubber material considered included only rubbers produced by grinding scrap tires. Such materials are widely available across the United States and have been used in seal coat and interlayer construction for almost 25 years. The results of this study include a suggested laboratory procedure for producing asphalt-rubber for use in the asphalt-rubber concrete mixture design procedure. A suggested setup of equipment is also included along with vendors who have these items on the shelf. The mixture design procedure includes modifications to the standard FAA procedure included in the Asphalt Institute MS-2 manual.