Why is determining the physical properties of aggregates important in construction?

Determining the physical properties of aggregates is crucial in construction because it directly informs predictions about how these materials will perform in various engineering applications. The physical characteristics—such as size, shape, density, and porosity—affect not only the mechanical behavior of concrete but also its durability, strength, and workability. By understanding these properties, engineers can make informed decisions about the suitability of specific aggregates for particular projects, ensuring the constructed infrastructure meets required safety and performance standards.

While other aspects like uniform size, color, and cost can have their importance, the primary concern in selecting aggregates revolves around their ability to perform as expected within the intended use. This performance prediction is foundational to achieving successful outcomes in construction projects.