Abstract: A materials-handling plant is convertible for producing asphalt by either batch or continuous drum mix processes or remediating soil. Common to each process is a rotary drum and burner system for heating the materials, a primary separator and a baghouse for separating particulate matter from exhaust gas streams. For asphalt production by a batch process, aggregate is dried in the drying section of the drum and discharged for combination with asphalt in a batch tower. In the continuous drum mixer mode of asphalt production, dried aggregate is discharged into a drum mixing section for mixing with asphalt and recycle asphalt and conveyed to a storage silo. In both cases, particulate dust is separated from the exhaust gas stream and combined with the resulting asphalt product. For soil remediation, the contaminants in the soil are volatilized in the drum by contact with the hot gases of combustion. Dust particles in the exhaust gas stream are separated and contaminants thereon volatilized in the baghouse.

Abstract: A surface decking or mat-like sheet material is provided having a lower surface with generally flat portions adapted to lie on a floor, ground or other generally flat surface, and an upper surface having a plurality of parallel spaced unidirectional recessed passageways separated by upwardly extending portions having spaced parallel unidirectional sides which also form the sides of said passageways, said recessed passageways having bottom portions extending between said parallel sides, the exterior sides of said bottom portions constituting said generally flat portions of said flat surface, said bottom portions containing a plurality of spaced openings extending through said lower surface, and said upper surface between said passageways containing a plurality of spaced openings having upwardly extending rims which act as bearing surfaces for animals, persons, or objects in contact therewith.