modified asphalt binder material employing crosslinked ground rubber and methods of manufacturing the modified asphalt binder

摘要

Modified asphalt binder material employing crosslinked ground rubber and methods of manufacturing the modified asphalt binder. bituminous asphalt binder materials which are modified by the addition of ground rubber or ground tire rubber and a crosslinking agent are described. In addition, methods are provided for producing a modified asphalt binder containing ground rubber or ground tire rubber and a crosslinking agent. Modified asphalt binders comprise pure asphalt, ground rubber, one or more acids and a crosslinking agent. optionally, the modified asphalt binder may include one or more polymer additives. ground rubber can be obtained from recycled car and / or truck tires. The addition of ground rubber in asphalt binders can improve the consistency and properties of asphalt binders at high or low temperatures. In particular, the modified asphalt binders of the present invention exhibit improved elastic behavior, resulting in improved performance of roads or other paved surfaces employing the modified asphalt binder. Road resistance to permanent deformation, fatigue cracking and thermal cracking is improved by the use of modified asphalt binder.