Provides an in-depth analysis of recent research comparing lime vs. liquid antistrip additives in reducing moisture sensitivity of Hot Mix Asphalt (HMA) mixtures. Includes a discussion of the behavior of HMA pavements such as strength and resistance to rutting, cracking, and fatigue and how research results relate to pavement performance. Demonstrates that lime-treated asphalt is superior to liquid-treated asphalt under a wide range of conditions. (73 pp)