How does concrete’s thermal expansion compare to stone in outdoor trash can joints?

When designing outdoor trash cans, understanding thermal expansion differences between concrete and stone is crucial for joint durability. Concrete typically has a higher coefficient of thermal expansion than natural stone, meaning it expands and contracts more significantly with temperature changes. This can lead to greater stress on joints in concrete structures, potentially causing cracks or misalignment over time. Stone, with its lower expansion rate, often provides more stable joints in varying climates. Factors like material composition and environmental exposure influence these behaviors. Proper joint design must account for these differences to ensure longevity and functionality in outdoor settings.