Concrete is referred to as "green concrete" for how many days?

Concrete is referred to as "green concrete" during its early stages of curing, particularly within the first 28 days after being poured. This terminology highlights the fact that the concrete is still in a relatively immature phase and not yet fully cured or hardened. During this period, the concrete continues to undergo chemical processes that are essential for achieving its final strength and durability.

The importance of this 28-day period lies in the fact that most of the strength gain occurs within this timeframe, and it serves as a benchmark for determining when concrete can be subjected to loads and other operations. Therefore, understanding the concept of "green concrete" is crucial for professionals in the construction and engineering fields, as it impacts scheduling, safety, and the overall integrity of the structure being built.