Does reducing the temperature of the aggregate have a greater impact on mix temperature than reduction in water temperature?

Reducing the temperature of the aggregate has a lesser impact on the overall mix temperature compared to reducing the temperature of the water used in the concrete mix. Water typically has a significant effect on the temperature of the concrete mix because it is a major component and directly influences the mixing temperature.

When cold water is added to the mix, it cools down the concrete more effectively than lowering the temperature of the aggregates, which may only marginally change the overall temperature due to their smaller mass in the mix. As a result, manipulating the water temperature can lead to a more pronounced decrease in the final concrete temperature than adjusting aggregate temperature.

In specific scenarios, like during very hot weather, aggregate temperature can have a noticeable impact if aggregates are stored under direct sunlight or heated conditions, but generally, the water has a more substantial effect on the mix temperature across most scenarios. Thus, it is more accurate to state that reducing the temperature of the aggregate does not have a greater impact than reducing water temperature.