One of the basic requirements in the Quality Management Training Program is that the aggregates that are used in Hot-Mix Asphalt (HMA) and Portland Cement Concrete (PCC) must be produced under the Aggregates Gradation Control System (AGCS). In this system, the aggregate producer is responsible for his gradation control, and he certifies that the aggregate meets the gradation and quality requirements when shipped. In addition, tighter gradation requirements are placed on the critical sieve of the coarse aggregate being produced.


Required fields are indicated by .