NCHRP Synthesis 464 - Thin Asphalt Concrete Overlays


Donald E. Watson and Michael Heitzman


This report documents the current state of the practice and research efforts on the use of thin asphalt concrete overlays for pavement maintenance, rehabilitation, and preservation.  This synthesis was performed by conducting a literature review, including both U.S. and international technologies, as well as a survey of state departments of transportation (DOTs) and selected local agencies. Information was also gathered from selected individuals and private industry representatives.


Supported by the National Center for Asphalt Technology, Auburn University, Auburn, Alabama