Harm of foaming:

Foam in water-reducing admixtures/ concrete admixture can cause a number of problems. Foam can reduce the effectiveness of the admixture, leading to reduced performance in concrete. It can also cause air entrainment, which can lead to increased permeability and decreased strength. Additionally, foam can reduce the flowability of the admixture, making it difficult to mix and apply. Finally, foam may interfere with the curing process, leading to reduced strength and durability.

Why antifoam and deaerator should be used in concrete admixture?

1. Antifoam helps to reduce the amount of water needed in concrete mixes, allowing for more efficient use of resources. This can help to reduce costs associated with concrete production and transportation.

2.High Cost-effective Antifoam also helps to reduce the amount of air entrained in the mix, which can improve the strength and durability of the concrete.

3. The use of antifoam can also help to reduce shrinkage cracking, as it reduces the amount of water that evaporates from the mix during curing. This can lead to a stronger and more durable finished product.

How to choose defoamer/deaerator solutions in concrete admixture?

1. Consider the type of concrete admixture you are using. Different types of admixtures may require different types of antifoam.

2. Check the manufacturer’s instructions for the specific antifoam that is recommended for use with your concrete admixture.

3. Choose an antifoam that is compatible with the other ingredients in your concrete mix, such as cement, water, and aggregates.

4. Consider the application rate and effectiveness of the antifoam you are considering using in your concrete mix. Make sure it will provide adequate protection against foam formation without negatively impacting other aspects of your concrete mix design or performance.