As an indispensable material in the construction industry, the stability and quality of concrete performance are crucial for the safety of buildings. However, in the preparation process of concrete, the generation of bubbles often has adverse effects on the performance of concrete, such as reducing compactness and durability. Therefore, defoamers for concrete have emerged as an important additive to improve the performance of concrete.

The main function of defoamers used in concrete is to reduce the number of bubbles in the concrete, thereby improving the compactness and durability of the concrete. The commonly used types of defoamers include organophosphates, proteins, and surfactants. These defoamers can effectively destroy the bubble structure in concrete through different mechanisms of action, causing the bubbles to dissipate rapidly and achieve the purpose of defoaming.

In practical applications, the use of defoamers for concrete is relatively simple. Usually, defoamers are directly added to concrete in a certain proportion and thoroughly mixed to ensure uniform dispersion in the concrete. As the mixing progresses, the defoamer will quickly take effect, eliminating bubbles in the concrete and improving its quality.

It should be noted that when selecting defoamers for concrete, the appropriate type of defoamer should be chosen according to the specific situation. Different types of defoamers have different properties and uses, and should be comprehensively considered based on factors such as concrete foaming, production process, and cost. Meanwhile, when using defoamers, the dosage should be strictly controlled to avoid excessive use leading to a decrease in concrete performance.

In summary, defoamers play an important role in improving the performance of concrete. By selecting and using defoamers reasonably, the number of bubbles in concrete can be effectively reduced, the compactness and durability of concrete can be improved, and strong guarantees can be provided for the safety of buildings.