Building industry defoamers play an important role in improving the performance of concrete, mainly reflected in the following aspects:

1、 Improving the fluidity and workability of concrete, defoamers help improve the fluidity and workability of concrete by reducing the surface tension in the concrete mixture. This makes the mixing, transportation, and pouring process of concrete smoother, reducing construction difficulty and cost. Meanwhile, good fluidity and workability also contribute to improving the compactness and uniformity of concrete, laying a solid foundation for subsequent hardening and strength development.

2、 Improving the strength and durability of concrete, if bubbles are not effectively removed during the solidification and hardening process of concrete, they will form pores inside the concrete, affecting the uniformity and strength of its overall structure. The use of defoamers can effectively eliminate these bubbles, reduce the porosity inside the concrete, and thus improve the strength and durability of the concrete. Experimental data shows that the compressive strength and flexural strength of concrete treated with defoamers have significantly improved. In addition, reducing porosity can help improve the impermeability of concrete, prevent moisture and harmful substances from penetrating, and further extend the service life of concrete.

3、 Optimizing the structure and appearance of concrete, the formation of bubbles on the surface and inside of concrete not only affects its mechanical properties, but also damages the aesthetics of the building. Defoamers can quickly eliminate these bubbles, making the concrete surface smoother and improving the overall aesthetics of the building. Meanwhile, reducing internal bubbles also helps to improve the compactness and uniformity of concrete, making its structure more stable and reliable.

4、 Improving construction efficiency and quality, the use of defoamers can reduce defect repair work caused by bubbles, thereby saving costs and time. In the process of concrete construction, if a large number of bubbles appear, it will not only affect the construction progress, but also increase the difficulty and cost of later repairs. The application of defoamers can solve this problem at the source, improving construction efficiency and quality.

5、 The synergistic effect with other additives such as water reducers is a commonly used additive in the concrete preparation process, used to reduce the viscosity of cement slurry systems, improve the fluidity and plasticity of concrete. However, water reducer may introduce bubbles or foam, which will affect the performance of concrete. At this time, the addition of defoamer can effectively eliminate these bubbles and foam, and form a synergistic effect with water reducer to jointly improve the performance and quality of concrete.

In summary, defoamers in the construction industry play an important role in improving the performance of concrete. Defoamers provide strong support for the development of modern construction industry by improving the fluidity and workability of concrete, enhancing strength and durability, optimizing structure and appearance, improving construction efficiency and quality, and synergistic effects with other additives such as water reducers.