Patent ID: 7264667
Filing Date: 2007-09-04
Classification: C04B,C08L,E01C,Y02W,Y10T

Abstract:
1. A process of producing asphalt concrete with enhanced performance utilizing a primer, the process comprising the steps of: (a) supplying a hot aggregate with a surface temperature of at least 380 deg. F; (b) mixing a primer and the hot aggregate for a period of time sufficient to melt the primer onto at least a portion of the aggregate surface, the melted primer forming a primer layer over at least the portion of the aggregate surface; and (c) mixing an asphalt base binder with the hot aggregate at least partially covered with the primer layer such that the primer layer forms a primer interlayer between the hot aggregate and the base binder, the resulting asphalt concrete having enhanced performance when compared with an aggregate and base binder combination in the absence of the prime.