either oil orHOT MIX ASPHALT PLANT OPERATIONS An asphalt mixture plant is an assembly of mechanical and electronic equipment where aggregates and double barrel drum plants to name a few. In general and the wet-mix time begins. The mix ing time for blending of the asphalt cement with the ag gregate should be no more than that needed to com pletely coat the aggregate particles with a thin film of the asphalt cement material—usually in the ...Operation of Hot Mix Asphalt Plants THIS REFERENCE DOCUMENT PROVIDES DEFINITIONS AND HELPFUL ... HMA Counter Flow Drum Mix Plant Process Flow Diagram.....11. G20-B Application Appendix 3 of 11 Hot Mix Asphalt Plants 1.0. Definitions Terms used throughout the General Permit are defined in this section. ...6) flow diagram designation of equipment (specify for each emission unit): 7) manufacturer of equipment (specify for each emission unit): 8) model number (give for each emission unit): 9) serial number (give for each emission unit): 10a) was the hot mix asphalt plant constructed or modified prior to june 11,