The new conception of rare earth compounds used as asphalt modifier

In the view of the destructions of present asphalt pavement, government authorities and paving contractors seek to improve road life in the face of increased traffic. Herein, we simply analysis the existing modifiers and sum up their advantages and disadvantages, based on this,we propose newconceptions of modified asphalt of rare earth compounds and fly ash. In addition, we also compare them with other modifiers at the end of this article. © 2013 Taylor & Francis Group, London.