Slurry seal is one of the most versatile of pavement surface treatment systems, providing low cost, rapid usability, and aesthetic value, while correcting minor deficiencies in the pavement surface and preventing further deterioration. When used at the right times, slurry seal can extend the life of an asphalt pavement and save money by preventing minor problems from turning into major ones. Slurry seal is also more eco-friendly and less expensive than many other systems.
Slurry Seal is a sealcoating process generally used on runways, streets, and roadways. In this process the coating is manufactured by the application equipment as it is being applied. A closely specified blend of graded asphalt emulsion, additives, and aggregate slurry seal is generally classified as Type I, II, or III depending on the size of aggregate used. A large aggregate slurry seal with additional polymers may also be referred to as microsurfacing. Used infrequently on parking areas due to the potential for tracking in hot weather.
A slurry seal is a step up from seal coating, in which aggregate is added to asphalt emulsion to form a slurry which covers the pavement. The slurry seal will last approximately 5-8 years depending on traffic and weather. The material will penetrate cracks and seal damaged areas better than a seal coat would.
Brigham Young University, Laie
How is it applied?
The slurry seal is applied using the slurry seal truck pictured at left. Slurry seal, as in seal coating, requires that areas of serious asphalt deterioration be patched before application of slurry material.
NOTE: Slurry seal will lose some aggregate during the first couple of months after installation; however, this is temporary until the material has fully cured. (Alakona will return to sweep up loose aggregate within the first 1-2 weeks following application.) This material will scuff during this curing time as cars make power steering turns while parking and turning into driveways. We advise occupants and request that they minimize tight turns during the first few months as the material is hardening. These scuffs and power steering marks will subside as material hardens and is fully cured.