AzDOT’s SR2020 Polymer Modified Rejuvenating Fog Seal Program wins AE

GLEN ELLYN, IL, March 21, 2025 – At the 52^nd Annual Meeting of the Asphalt Emulsion Manufacturers Association (AEMA), held March 4-7, 2025, in Rancho Mirage, CA, Arizona Department of Transportation, Ergon Asphalt & Emulsions, Inc., and Cactus Asphalt were awarded the 2025 AEMA Past President’s Award for Emulsion Excellence for their SR2020 Polymer Modified Rejuvenating Fog Seal Program.

This award is presented by AEMA in recognition of a specific project utilizing asphalt emulsions completed in the past calendar year and is awarded to the agency, contractor, and emulsion manufacturer of the winning entry.

With approximately 27,000 lane miles to maintain, ADOT faced the challenge of addressing aging infrastructure like the heavily trafficked SR 202 Red Mountain. To minimize downtime and reduce maintenance costs, ADOT implemented a polymer modified rejuvenating fog seal to combat oxidation and raveling, extending pavement life by 2-4 years.

The project covered 299 lane miles and utilized advanced techniques to ensure minimal disruption. By applying the fog seal during off-peak hours and employing a high-efficiency strategy with seven distributors and 14 transport trucks, the team completed the project in just one weekend — cutting the expected time in half. The close collaboration between ADOT, Ergon Asphalt & Emulsions, emulsion supplier, and Cactus Asphalt, contractor on this project, enabled this successful, swift operation.

This project is a prime example of how innovation and teamwork can enhance road preservation efforts while optimizing state budgets and reducing traffic disruptions.

ABOUT THE ASPHALT EMULSION MANUFACTURERS ASSOCIATION (AEMA):

The Asphalt Emulsion Manufacturers Association (AEMA), founded in 1973, is an international non-profit trade association of asphalt emulsion producers and sellers, suppliers, users, research personnel, public officials, consulting engineers, and contractors working together to promote the increased and more efficient use of asphalt emulsions.

AEMA is a founding member of the Pavement Preservation & Recycling Alliance along with the Asphalt Recycling & Reclaiming Association and the International Slurry Surfacing Association. PPRA is a partnership of leading industry associations (AEMA, ARRA, ISSA) to advance sustainable, eco efficient, and innovative pavement applications.

To learn more, visit www.aema.org or call us at 630-942-6579.

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