Can an aggregate producer set their own gradation targets?

An aggregate producer is allowed to establish their own gradation targets, but this is contingent upon receiving approval from IDOT (the Illinois Department of Transportation). This process ensures that the targets align with project specifications and quality control measures necessary for construction and safety. By requiring this approval, IDOT can ensure that the gradation characteristics will meet performance requirements and are consistent with industry standards.

This approach balances the need for flexibility for producers to optimize their processes while maintaining the integrity of the materials used in public infrastructure projects. It promotes good practices and accountability within the industry, fostering a partnership between producers and regulatory bodies. Gradation targets that are pre-approved can benefit both the producer and the projects by ensuring compliance with specifications and enhancing the overall quality of the material supplied.