What criteria is typically used for evaluating concrete durability?

The criterion commonly used for evaluating concrete durability is compressive strength. This measure indicates the ability of concrete to withstand loads without failure, which is crucial for ensuring the material can endure various stresses over time, including those induced by environmental factors, such as freeze-thaw cycles, chemical exposure, and mechanical loads.

Compressive strength is assessed through standardized tests that determine how much load the concrete can support before failing. A higher compressive strength usually correlates with better resistance to cracking and weathering, thus enhancing the longevity and overall durability of the concrete product.

While weight, color, and surface finish may provide some ancillary information about the concrete’s properties or appearance, they do not directly relate to the material's performance and longevity in typical service conditions. Therefore, compressive strength remains the primary and most relevant criterion for evaluating concrete durability.