Protection from the elements until the next phase
A pavement is only as good as its foundation-base. Traditionally, road bases have been prepared for surfacing with prime coats to protect the granular base during construction and help reduce dust. Prime seals provide a good bond between the underlying base and hot mix asphalt overlays. On low volume roads, they bond the base to spray seals or other thin surfaces, which might otherwise delaminate. As traffic increases these treatments serve well as foundations for staged construction of future overlays.