Anti-stripping additives work by improving the adhesion in several ways. Cationic anti-stripping additives have polar functional groups that bind to negatively charged sites on both the asphalt and aggregate surfaces. This creates a stronger molecular bond between the two materials. Other types may also increase surface energy or decrease contact angles to improve wetting ability. https://logcla.com/blogs/477153/Unlocking-the-Potential-of-Asphalt-Additives-Boosting-Pavement-Performance-and