What control system holds the aggregate producer responsible for gradation control of products for QC/QA projects?

The AGCS, or Aggregate Gradation Control System, is designed specifically to ensure that aggregate producers maintain strict control over the gradation of their products. This system is essential for Quality Control/Quality Assurance (QC/QA) projects where the consistency and quality of materials are crucial for the overall performance of the end product, such as asphalt or concrete.

By implementing AGCS, producers are compelled to regularly monitor and adjust their production processes to adhere to specified gradation requirements. This ensures that the materials used meet established standards, which leads to improved performance and longevity of the constructed infrastructure.

The focus on gradation control is vital because the sizing and distribution of aggregate particles influence the strength, workability, and overall durability of the final product. Therefore, the AGCS empowers aggregate producers to take responsibility for quality assurance by providing guidelines and oversight on how aggregates are graded before they are used in construction projects.