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US 10,196,783 B2Granted
Compositions and methods for pelletized recycled asphalt shingles
OwnerWilliam P. Dempsey, William R. Baileyinventors
Life of this patent
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Abstract
Recycled asphalt shingle pellets having a core pellet, which includes recycled asphalt shingle waste with a softening agent, and a shell coating, which includes a binder with an aggregate blend of virgin recycled asphalt shingle waste and hydrated lime.
Claims18
A method of producing asphalt pellets from recycled asphalt shingles material, the method comprising:
- grinding recycled asphalt shingles to form comminuted particles;
- agglomerating the comminuted particles with a softening agent in a first pelletizer to form intermediate cores;
- dusting the intermediate cores with a mineral powder;
- agglomerating the intermediate cores with a blend of virgin recycled asphalt shingles and hydrated lime in a second pelletizer to form shelled pellets;
- coating the shelled pellets with lignin and a water-resistant agent;
- and, drying the shelled pellets.
3 more elements
A method of producing asphalt pellets from recycled asphalt shingle waste, the method comprising:
- grinding recycled asphalt shingle waste to form comminuted particles;
- agglomerating the comminuted particles with a softening agent in a first pelletizer to form intermediate cores;
- dusting the intermediate cores with a mineral powder;
- agglomerating the intermediate cores with a blend of virgin recycled asphalt shingle waste and hydrated lime in a second pelletizer to form shelled pellets;
- coating the shelled pellets with lignin and a water-resistant agent;
- and,
- drying the shelled pellets.
4 more elements
A method comprising:
- grinding recycled asphalt shingle waste;
- agglomerating the recycled asphalt shingle waste with a softening agent;
- pelletizing the recycled asphalt shingle waste;
- dusting the recycled asphalt shingle waste with a mineral powder;
- agglomerating the recycled asphalt shingle waste with a blend of virgin recycled asphalt shingle waste and hydrated lime;
- pelletizing the recycled asphalt shingle waste;
- coating the recycled asphalt shingle waste with lignin and a water-resistant agent;
- and,
- drying the recycled asphalt shingle waste.
6 more elements
Dependencies are inferred from the claim text.