True or False: Troweling is the process of refining and smoothing the surface of concrete 2 hours before it begins to set.

The statement is false because troweling is not typically performed just 2 hours before concrete begins to set. Instead, troweling is a finishing process that is done after the concrete has set to a specific degree of hardness, which allows the surface to be refined and smoothed without the trowel damaging the fresh paste. The timing of troweling is critical; it usually occurs once the surface is firm enough to support the weight of the laborer and retain the desired surface characteristics.

The optimal timing for troweling can depend on various factors, including the mix of the concrete, the temperature, and the weather conditions, indicating that the timing is not fixed but rather situational. This makes the statement misleading, as it implies a rigid timeframe that does not account for the variables involved in concrete setting and finishing.