System and method for manufacturing asphalt products with recycled asphalt shingles

A method for manufacturing a processed asphalt suspension composition comprising:

• dry grinding a shingle waste material with a vertical shaft impactor to provide a ground shingle waste material, wherein the grinding removes moisture from the shingle waste material;
• removing granules ground shingle waste material to provide a ground recycled shingle material;
• introducing virgin asphalt into a slurry tank heated to a temperature between about 150-260° C.;
• adding the ground recycled shingle feedstock material to said heated slurry tank and mixing said ground recycled shingle feedstock material with said virgin asphalt in said heated slurry tank to form a mixed asphalt slurry;
• processing the mixed asphalt slurry in a wet grinding machine that comprises a stirred ball mill or an attritor to provide a processed asphalt suspension composition;
• and
• recovering the processed asphalt suspension composition, wherein the processed asphalt suspension composition comprises particles having a size no greater than about 150 microns.