Best Practices for Emulsion Tack Coats

Proper use of tack coat emulsions helps ensure proper bonding between layers of an asphalt pavement, which improves the long-term performance of the pavement. This publication, based on NCHRP Report 712, provides a convenient overview of guidelines and best practices for the selection, application rate, placement, and evaluation of emulsion tack coats. New non-tracking tack and polymer-modified emulsions are also covered. This newly updated publication now includes the Methods for Addressing Tack Tracking addendum from research conducted by the National Center for Asphalt Technology.