How does the granularity of concrete mixes affect outdoor bar stool durability?

The durability of outdoor bar stools made from concrete heavily depends on the granularity of the concrete mix used in their construction. The size and distribution of aggregates in the mix play a critical role in determining the stool's resistance to weathering, cracking, and wear over time.

Fine-grained concrete mixes, with smaller aggregates, tend to produce smoother surfaces but may lack the structural strength needed for long-term outdoor use. Conversely, coarser mixes with larger aggregates enhance durability by improving load-bearing capacity and reducing shrinkage cracks. However, overly large aggregates can create voids, weakening the stool's integrity.

Optimal granularity balances strength and workability, ensuring the stool withstands moisture, temperature fluctuations, and mechanical stress. Proper curing and sealing further enhance durability, making granularity a key factor in designing weather-resistant outdoor concrete furniture.