Warm weather conditions may increase the moisture evaporation rate and reduce the setting time. This means that the concrete mix starts to solidify quicker and becomes harder to handle. Therefore, the period to place, finish and cure the concrete will be shorter than under other conditions.

Avoid High Temperatures
To avoid the high temperatures that can negatively influence your concrete strength, move the pouring time tolater at night or early in the morning. This way the concrete can cure for some time without the influence of the hot temperatures. For this strategy to work, it is important to coordinate well with the batching plant and the subcontractors.