Journal of the Korean Asphalt Institute ISSN:2234-0785(Print) 2635-9553(Online) 한국아스팔트학회지

Domestic asphalt pavement is intensifying damage due to various reasons such as traffic volume and temperature changes. As a way to solve the damage of asphalt pavement, a modified asphalt mixture mixed with a modifier of asphalt is used. In particular, as an improvement measure to prevent plastic deformation among the types of damage to asphalt pavement, modified asphalt is used in which various modifiers are mixed into the asphalt. Asphalt modified materials mainly produce the effect of plastic deformation suppression by modifying the high temperature characteristics, which is asphalt vulnerability. In the case of modifiers used in Korea, there are various types of modifiers such as chemcrete, gilsonite, SBS, SBR, EVA, LDPE, etc. In this study, the types of asphalt modifiers were listed and the characteristics of each modifier were analyzed. In addition, the resistance to cracking and plastic deformation was comparatively analyzed through the indoor test results of hot mix asphalt and modified asphalt mixture.