2023 Volume 78 Issue 2 Pages I_58-I_63
The demand for recycled asphalt mixture is increasing year by year, and there is concern that the quality of recycled asphalt concrete aggregate will deteriorate accordingly. Therefore, various studies on the recycling of asphalt pavement have being conducted. The authors have conducted laboratory tests to evaluate the properties of recycled asphalt mixtures that have been repeatedly recycled in laboratyory and recycled asphalt mixtures that were used the recycled aggregate in asphalt mixing plant. As a result, authors obtained the knowledge on the effects of the difference in the components of the rejuvenator, recycled aggregate ratio, and the degree of needle penetration of the bitumen on the crack resistance of the recycled asphalt mixture. In this study, a full-scale test section was constructed, and a accelerated loading test using a heavy vehicle was conducted to verify crack resistance. As a result, the same result as the laboratory test was obtained.
