In construction projects, the plaster layer serves as a key layer for wall decoration and protection, and its quality directly affects the overall aesthetics, durability, and living comfort of the building. However, the bubbles generated during the mixing and construction process of cement mortar often have a negative impact on the quality of the plaster layer. Therefore, the rational application of cement mortar defoamers has become an important means to improve the quality of plastering layers. The bubbles in cement mortar are one of the main causes of quality problems such as hollowing and cracks in the plaster layer. The core function of defoamers is to effectively eliminate these bubbles, ensuring that cement mortar maintains a uniform and bubble free state during mixing and construction. This not only reduces the weakening effect of bubbles on the strength of the plaster layer, but also prevents the formation of small holes caused by the rupture of bubbles during the drying process, thereby improving the overall quality of the plaster layer.

The presence of bubbles can disrupt the smoothness of the plaster layer, making the wall appear uneven and affecting its appearance. By using cement mortar defoamers, the number and size of bubbles can be significantly reduced, making the surface of the plaster layer smoother and more even. This not only enhances the aesthetics of the wall, but also provides a better foundation for subsequent decoration projects such as coatings and wallpapers.

The function of foaming agent is not only to eliminate bubbles, but also to improve the compactness of cement mortar to a certain extent. The increase in compactness means a decrease in porosity in cement mortar, thereby improving the strength and durability of the plaster layer. This helps prevent problems such as water infiltration and mold growth, extending the service life of the building.

The addition of defoamers to cement mortar can also improve the construction performance of cement mortar. Due to the elimination of bubbles, the fluidity, workability, and plasticity of cement mortar are enhanced, making it easier for construction personnel to carry out mixing, laying, and leveling operations. This not only improves construction efficiency, but also reduces quality problems caused by improper construction.

As mentioned earlier, eliminating bubbles and enhancing flatness can significantly improve the appearance quality of the plaster layer. In addition, the use of defoamers can make the surface of the plaster layer more delicate and smooth, presenting a more uniform and natural texture. This is particularly important for projects that pursue high-quality architectural appearance.

With the increasing awareness of environmental protection, the environmental performance of building materials is receiving more and more attention. High quality cement mortar defoamers not only have good defoaming effects, but also should have environmental characteristics such as low toxicity, harmlessness, and degradability. This type of defoamer will not cause environmental pollution during use and is also in line with the concept of green building. In addition, by improving the quality of the plaster layer and reducing the number of rework and repairs, resources and energy can also be saved to a certain extent.

When using cement mortar defoamers, the principle of scientific dosage must be followed. Excessive use not only increases costs, but may also have a negative impact on the performance of cement mortar; If the dosage is insufficient, the defoamer cannot fully exert its effect. Therefore, before construction, tests and adjustments should be conducted according to specific circumstances to determine the optimal dosage to ensure the quality of the plaster layer.

The addition time of defoamers is also one of the important factors affecting the quality of the plaster layer. Generally speaking, adding defoamers at the appropriate time when mixing cement mortar has the best effect. This can ensure that the defoamer is evenly dispersed in the cement mortar and plays a role. If defoamers are added after mixing or not laid in a timely manner, it may affect the defoaming effect and reduce the quality of the plaster layer.

In summary, cement mortar defoamers play an important role in improving the quality of plaster layers. By eliminating bubbles, enhancing flatness, increasing density, improving workability, beautifying appearance, environmental protection and energy conservation, as well as using scientific amounts and reasonable addition times, the quality level of the plaster layer can be significantly improved, providing strong guarantees for the smooth progress and high-quality completion of construction projects.