shingle grinder lane
RAS is produced by grinding asphalt roofing shingles to a small spec, generally under 3/8 to salvage the valuable asphalt and sand. Shingle grinding on the rise : Portable Plants Sep 16, 2014 JM: Entering the shingle market is dependent upon the basic premise of supply and demand having a market for the ground shingles and a source of material to grind.