Rejuvenating Fog Seal
Contract-Ready Construction Specification Guidelines
Download GuidelinesLearn about the benefits of Rejuvenating Fog Seal Treatments
Roads break down over time, but eFog, a rejuvenating fog seal developed by Ergon Asphalt & Emulsions, can delay that process. eFog contains a proven rejuvenator and a polymer modified asphalt base that provides a denser film thickness for increased durability and resistance to tracking.
eFog is a cost-effective way to extend the life of a roadway by roughly 2-4 years. Unit cost may vary depending on material availability, application rate, site conditions and the amount of work required to clean and prepare the surface prior to application.
eFog, like conventional fog seals, can be applied to all types of roads (as long as they are not in critical condition). In addition to preventative maintenance, eFog can be used to correct more severe distresses than conventional fog seals, such as oxidation, raveling and top-down fatigue cracks.
According to a study completed by the Federal Highway Administration entitled “Prevention is the Cure,” the use of fog seals is an easy and cost-effective way to delay roadway breakdowns and further postpone major construction.
Best Practices
- Dilute at a 1:1 ratio with warm water at the emulsion plant.
- After dilution, the seal should be applied to the roadway as soon as possible.
- The surface that will receive the seal should be cleaned and prepared.
- Seal cracks ¼” or greater after application.
- Allow the emulsion to cure before opening road to traffic.
Pavement Preservation Success
Success Story: Rejuvenating Fog Seal
DownloadOn the newly paved State Route 7 in Middle, Tennessee, eFog rejuvenating fog seal was used to address 16.1 miles of aging, oxidized shoulders. It had been 10 years since the shoulders were paved, and they were looking ragged and worn next to the route’s fresh hot mix asphalt surface. The Tennessee Department of Transportation (TDOT) wanted to improve the appearance of the shoulders, eliminate existing cracks less than 1/8" and evaluate how well eFog would perform in comparison to a conventional SS-1 fog seal in a nearby county.