Patent ID: 8382362
Filing Date: 2013-02-26
Classification: C08L

Abstract:
1. A method of making hot mix asphalt, without adding virgin asphalt content oil, comprising the steps of: a) adding gravel to a container; b) heating and rotating the gravel in the container to a suitable temperature for creating hot mix asphalt; c) adding processed shingles having a predetermined %/w of AC oil to a mixing auger outside the container and extending into the container, and adding at least 1 part of rejuvenating oil per 100 parts of the processed shingles to the mixer auger; d) mixing the processed shingles and rejuvenating oil for about 10 to 45 seconds in the mixer auger to create a slurry of rejuvenated shingles; and e) releasing and mixing the slurry of rejuvenated shingles from the mixer auger extending into the container in step d) into the heated gravel of step b) to form hot mix asphalt with a total oil content of between about 4%/w to 8%/w of the hot mix asphalt, without adding virgin asphalt concrete oil.