What type of agent is used to delay setting in hot weather?

Retarding agents are specifically designed to slow the setting time of concrete, especially in hot weather conditions. When temperatures rise, the rate of hydration of the cement increases, which can cause concrete to set too quickly, compromising workability and overall quality. By incorporating retarding agents into the mix, contractors can extend the setting time, allowing for better handling and finishing of the concrete. These agents work by chemically interfering with the hydration process, ultimately ensuring that the concrete remains workable for a longer period, which is crucial when temperatures soar. This is particularly important in large pours or in locations where quick setting can lead to problems such as cracking or uneven surfaces.