Concrete defoamer, the construction industry defoaming master
Concrete is widely used as one of the main raw materials for infrastructure, which possesses good performance. However, concrete structures are prone to blistering on the surface of the building structure due to its constituent materials as well as the construction process, and foam can easily lead to poor performance of concrete components, reduced strength of the structure, unattractive appearance and other negative effects. Harmful foam needs to be controlled as early as possible, and the addition of concrete defoamer is an easy to operate and effective method.
Concrete in the process of use, due to the composition of materials and construction process, and construction environment, etc., are easy to cause the surface of the concrete components bubbles, bubbles are easy to produce negative impact on the concrete. Such as bubbles in the surface to form a raised package, very affect the appearance; if the bubble is too large, it will reduce the strength of the concrete, affecting the overall structure, but also accelerate the surface carbonation of concrete, so many building materials manufacturers in the preparation and production of concrete materials, will add a certain percentage of concrete defoamer to remove the bubble.
The foam appears during the use and modulation of concrete, the proportion of concrete can be adjusted in time to control the quality of the constituent materials. There are also timely addition of concrete defoamer to eliminate the foam in the concrete system. Defoamer is known as "industrial MSG", mainly polyether defoamer, silicone defoamer and mineral oil defoamer several major categories. Concrete defoamer has a small amount, defoaming obvious, easy to use and other characteristics, more applications in industrial production.
For the characteristics of the concrete system is prone to foam, the targeted design of the concrete defoamer has a high cost performance, the defoaming effect is ideal. Concrete defoamer has the following advantages:
1, High solid content of defoamer, add a small amount, generally one thousandth to three thousandths of the concrete system, defoaming costs are relatively low;
2, For the configuration of the defoaming program, good defoaming effect, fast defoaming, can quickly eliminate the foam in the concrete system due to the material and process and other reasons;
3, The performance of defoamer is stable, biologically or chemically inert, will not react with other components of the concrete system such as admixtures, will not affect the performance of concrete components.
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