When should finishing operations be performed in relation to concrete setting?

Finishing operations should be performed before the initial set of concrete because this is the optimal time to manipulate the surface of the concrete while it is still workable and pliable. Conducting finishing operations at this stage allows for the proper smoothing, leveling, and shaping of the concrete surface, which are essential to achieving the desired finish and appearance.

If finishing is attempted too early, the mix may ooze water or aggregate, leading to an uneven or poorly formed surface. Conversely, if finishing is delayed until after the concrete has set or hardened, it becomes increasingly difficult (or impossible) to achieve the necessary surface characteristics without damaging the concrete. Therefore, timing is critical, and performing finishing before initial set ensures the integrity of the surface finish while allowing the concrete to cure properly.