Open AccessOptimum Asphalt Content of Hot Recycled Asphalt Mixture in Cold Area under Different Old Materials
Author(s) -
Meng Yang,
Jiaqi Zhang,
Zhan Luo,
Liang Kong,
Yuanyuan Gu
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1649/1/012047
Subject(s) - asphalt , materials science , asphalt pavement , environmental science , waste management , composite material , engineering
In order to help the use of hot recycled asphalt mixture under different amount of used asphalt in cold areas of China. The optimum asphalt content of hot recycled asphalt mixture with different old materials was obtained by using Marshall Test method. By analyzing the material composition of hot recycled asphalt mixture in cold and cold areas, the optimum amount of asphalt with 70% old material in hot recycled asphalt mixture in cold area is 5.065%, the optimum amount of asphalt with 80% old material is 5.14%, and the optimum amount of asphalt with 80% old material is 5.2%. This study provides practical engineering for hot recycled asphalt mixture in cold area reference basis.