What is the primary purpose of temperature and shrinkage steel in construction?

The primary purpose of temperature and shrinkage steel in construction is to accommodate induced stresses in slabs. This type of reinforcement is particularly crucial in concrete structures because as concrete cures and dries, it can experience shrinkage due to the loss of moisture and temperature changes. These shrinkage and temperature-related movements can lead to cracking if not properly managed.

Temperature and shrinkage steel is placed within the concrete slab to absorb and distribute the stresses that arise during these processes. By doing so, it helps maintain the integrity of the slab and minimizes the risk of cracks forming, which can compromise the performance and longevity of the structure. Thus, the inclusion of this type of steel is essential for ensuring that the concrete can effectively manage the stresses imposed on it throughout its lifecycle.

Other options relate to decorative or functional aspects, but they do not address the critical role of managing internal stresses in concrete slabs.