National Concrete Pavement Technology Center

Project description

Microsurfacing is a widely used pavement preservation and preventative maintenance technique. This advanced form of slurry seal which uses the same basic ingredients, including emulsified asphalt, water, fine aggregate, mineral filler, and combines them with advanced polymer additives. It is generally considered a highly specialized process, and public highway agencies often depend on the experience of a microsurfacing contractor and emulsion supplier for design and construction. Though micro surfacing has been used frequently by city and county agencies, the Department has little experience with this pavement rehabilitation technique. The goal of this project is to evaluate micro-surfacing as a strategy to extend the life of a pavement from three to five years prior to a more extensive rehabilitation strategy such as milling and resurfacing