A slurry seal is the application of a mixture of water, asphalt emulsion, aggregate (very small, crushed rocks), and additives to an existing asphalt pavement surface. Slurry seal should last approximately 6-9 years.
Micro surfacing is similar to slurry seal, it consists of the application of a mixture of water, asphalt emulsion, aggregate, and chemical additives to an existing asphalt pavement surface. The life expectancy of micro surfacing treatment is 5-7 years.