How can an engineer judge the durability of concrete?

An engineer can effectively judge the durability of concrete by examining compressive strength and performing freeze-thaw resistance tests. Compressive strength is a critical measure of how well the concrete can withstand loads without failing, which is essential for its durability in various conditions. High compressive strength typically indicates a well-mixed and cured concrete that can endure stresses over time.

Additionally, freeze-thaw resistance tests are particularly important in climates that experience repeated freezing and thawing cycles. Concrete that is not designed or tested for freeze-thaw resistance may crack and deteriorate when subjected to these conditions. By evaluating both compressive strength and the material's behavior under freeze-thaw cycles, engineers can gain insight into its long-term performance and how it will perform under environmental stresses, thereby assessing its durability comprehensively.