What is typically assessed in conformance testing of aggregates?

In the conformance testing of aggregates, the focus is primarily on assessing the physical and mechanical properties of the materials. This includes evaluating attributes like gradation, particle shape, specific gravity, absorption, and other relevant characteristics that determine how well the aggregates will perform in construction applications. By ensuring that aggregates meet specific standards and criteria, the testing helps guarantee the quality and reliability of the materials used in concrete or asphalt mixtures, which is crucial for the overall performance and longevity of the infrastructure.

While cost efficiency, delivery time, resistance to environmental factors, and availability of alternative materials are all important considerations in a broader project context, they do not directly pertain to the conformance testing, which is specifically concerned with the inherent properties of the aggregates themselves.