The Myth of Accelerating Concrete Drying with Salt

The Myth of Accelerating Concrete Drying with Salt

Are you considering using salt to speed up the drying process of concrete? You may want to think twice. In this article, we will debunk the myth that salt can accelerate concrete drying and discuss the potential risks and drawbacks of this common misconception. Stay tuned to learn the truth about using salt in concrete drying processes.

Understanding the Process of Concrete Drying

Concrete drying is a crucial step in the construction process, as it allows the material to reach its maximum strength and durability. The process of concrete drying involves the evaporation of water from the mixture, leading to the hardening of the material. This typically takes place in the first 28 days after the concrete has been poured, although the drying process may continue for months or even years.

Factors Affecting Concrete Drying Time

Several factors can affect the speed at which concrete dries. These include the temperature and humidity of the surrounding environment, the water-cement ratio of the concrete mixture, and the thickness of the concrete slab. Higher temperatures and lower humidity levels can accelerate the drying process, while a higher water-cement ratio or thicker slab can slow it down.

Importance of Properly Drying Concrete

Properly drying concrete is essential for ensuring its strength, durability, and longevity. If concrete is not allowed to dry properly, it can lead to a variety of issues, including cracking, spalling, and reduced strength. Accelerating the drying process with methods such as adding salt can actually be detrimental to the concrete’s long-term performance, as it can cause the material to dry too quickly and unevenly. It is important to follow proper drying procedures and allow the concrete to dry at a natural pace to ensure the best results.

Debunking the Myth of Accelerating Concrete Drying with Salt

When it comes to accelerating the drying process of concrete, one common myth that we often hear is that adding salt can speed up the process. However, this is actually not true and can even have negative consequences on the quality and durability of the concrete.

Explanation of the Myth

The myth of using salt to speed up concrete drying likely stems from the fact that salt can absorb moisture. While it is true that salt can draw moisture out of the concrete, it does not actually accelerate the drying process. In fact, adding salt to concrete can disrupt the hydration process and weaken the overall structure of the concrete.

Potential Risks of Using Salt

Using salt to try and accelerate concrete drying can lead to a number of potential risks. One of the main risks is that it can cause the concrete to become weaker and more prone to cracking. Additionally, salt can also cause corrosion of any metal reinforcements within the concrete, further compromising its structural integrity.

Alternative Methods for Speeding up Concrete Drying

Instead of relying on the myth of using salt, there are several alternative methods that can actually help to speed up the drying process of concrete. One common method is to use a dehumidifier or fans to help remove excess moisture from the air surrounding the concrete. Additionally, using a concrete sealer can also help to accelerate drying by creating a barrier that prevents moisture from escaping too quickly.

By debunking the myth of using salt to accelerate concrete drying and understanding the potential risks involved, it becomes clear that there are more effective and safer alternatives available. By utilizing proper techniques and methods, you can ensure that your concrete dries efficiently without compromising its strength and durability.


In conclusion, the idea that salt can accelerate the drying process of concrete is simply a myth. While salt may have some benefits in terms of reducing ice formation and increasing traction on concrete surfaces, it does not actually speed up the drying time of the concrete itself. In fact, the use of salt on concrete can actually have detrimental effects on its long-term durability and structural integrity. Therefore, it is important to rely on proven methods and techniques for properly drying and curing concrete, rather than falling for the false promise of salt as a quick fix solution.