An apparatus and method for fragmenting and re-mixing agglomerated pieces of rubberized asphalt prior to applying same to a road surface. Agglomerated pieces and rubberized asphalt material are delivered to the upper portion of a housing. In a first embodiment, an auger and tine assembly having a common drive shaft, is mounted for rotation within the housing. The assembly includes first and second auger sections, mounted along the shaft in spaced relation and having converging, opposite handedness. A rotating tine section is positioned between the auger sections. A fixed tine section is mounted in the housing in interdigitized relation with the rotating tine section. In a second embodiment, the entire drive shaft includes a rotating tine section, and a corresponding interdigitized fixed tine section is provided within the housing. Passing through apertures defined by the fixed and rotating tine sections, agglomerated pieces are fragmented and re-mixed with the other material.