Question: how are asphalt shingles recycled?
Answer: The asphalt shingle recycling process usually involves the repurposing of shingles into an additive for hot-mix asphalt (HMA) or cold patch to fill cracks and potholes in roads. ... In most cases, the shingles are ground into 0.25–2.00-inch pieces, depending on their intended post-recycling purpose.