폴리머 개질 아스팔트 콘크리트의 푸아송비에 관한 실험적 연구 = Evaluation 0f Poisson's Ratio of Polymer-Modified Asphalt Concretes

다국어 초록 (Multilingual Abstract)

This study was performed to examine Poisson's ration of polymer-modified asphalt concrete due to temperature variation. Asphalt binder used in this study was an AC85-100, penetration grade of 85-100, and polymer for modifying asphalt were domestic LDPE(Low-density polyethylene) and SBS(Styrene-butadiene-styrene). Aggregate was a crushed gneiss which was most widely used in the middle part of Korea. Using these materials, asphalt mixture slab(340mm×240mm×80mm) with optimum asphalt content from mix design was made and cut into square pillar(80mm×80mm×160mm). Poisson's ration was measured in various temperature (-15℃, -10℃, -5℃, 0℃, 5℃, 10℃ and 20℃) under the load of one axis repeated compression mode. Poisson's ration of normal asphalt polymer modified asphalt mixtures in normal temperatures. This indicated that AP mixture was more susceptible to temperature effects. From regression analysis of experimental results, the difference of Poisson's ration between normal and low temperature showed that polymer modified asphalt mixture were lower than AP mixture except for SBS modified asphlat mixture.