In determining lots for density acceptance, what does a lot consist of?

The definition of a "lot" in the context of density acceptance is crucial for ensuring the quality and consistency of materials used in roadway construction. A lot typically consists of one day's production of a given job mix formula. This approach allows for the effective monitoring of the material's properties and ensures that any variations can be identified and addressed promptly.

When defining a lot as a day's production, it creates a manageable segment that can be tested and evaluated for compliance with established density requirements. This facilitates timely adjustment to the production process, thereby maintaining the integrity of the overall project and ensuring that the asphalt or other materials meet performance specifications.

Larger periods, such as a week or a month, would make it difficult to track quality control and could allow for significant issues to go undetected for extended periods, which is why such options are not considered the appropriate definition for a lot. A shorter period, like one hour, could be too granular and may not provide enough material for proper sampling and testing. Therefore, one day's production represents an optimal balance for quality assurance in roadway practice.