Concrete Cooling: Introduction To Four Ways Of Concrete Cooling

Concrete Cooling Methods

Concrete cooling is a term that is used to describe the process of keeping the concrete being poured at a low temperature. This is necessary because curing concrete can rise in temperature as a result of the reaction between concrete and water. This causes a rise in the volume of the concrete. When the concrete then begins to cool after curing, cracks will begin to form and cracking may occur. In building projects where strength is a requirement, cooling can be used to lower the initial temperature of the concrete as it is poured so that the rising temperature will not go as high. When the temperature can be maintained at a lower level, cracking will not occur since the changing of temperatures will be reduced.

Cooling will become more important as concrete is used to put together structures that need to be sturdy and durable. Concrete is used to put together dams, bridges, overpasses, and quite a few other buildings that support large weights. Premature cracking, such as cracking which could occur since the concrete heats up and then cools, migh result in a loss of strength and longevity.

There are at least 4 concrete cooling methods that are in widespread use:

Concrete cooling with Ice Evaporative Cooling Chilled Water Cooling Nitrogen Cooling

Concrete Cooling using Ice

The first method is commonly called Ice Cooling. In this method, ice replaces up to about 80% of the water in the concrete mixing truck or pre-mixer. The ice results in a cooler starting temperature compared to cold water and also further cools the mixture during the process of changing from ice to water.

Evaporative Concrete Cooling

A second approach of cooling is evaporative cooling. In cooling with vapor, the water is sprinkled on the surface area and it truly is crucial not to saturate the surface.

Concrete Chilled Water Cooling

The third approach of cooling works with using chilled water inside the concrete mix to reduce the temperature although the temperature cannot be lowered as significantly as with ice.

Concrete Nitrogen Cooling

The final technique of cooling is liquid nitrogen. In this strategy, liquid nitrogen, which has a really low temperature, is inserted to the mixing truck or in to the aggregate or water prior to the mixing method.

All four techniques have positive aspects based on the size and requirements in the project.

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