In waterproofing materials, Ewende micro silica powder can mainly play the role of improving impermeability, enhancing gap-filling permeability and increasing densification.
The specific features and advantages of micro silica powder are as follows:
- Filling pores: its particle size is very small, can fill the pores between the particles of cement and other materials, so that the structure of the waterproof material is more dense and reduce the seepage channel.
- Volcanic ash activity: can react with the hydration products of cement to generate calcium silicate gel and other substances, to further improve the denseness and impermeability of the material.
- Enhancement of cohesion and polymerization: Enhance the cohesion and polymerization of waterproof materials, so that they are not easy to separate and improve the overall waterproof performance.
When applying micro silica powder to waterproof materials, it is necessary to pay attention to the appropriate dosage, generally according to the micro silica powder used, cement type and aggregate properties and other factors, through the test to determine the optimal dosage. At the same time, the construction should be carried out in strict accordance with the ratio, pay attention to the mixing method and pouring method, in order to ensure that the micro silica powder can give full play to its role.
In addition, in the process of storage and transportation of micro silica powder, attention should be paid to rain and moisture. Construction also need to follow the relevant safety standards, to avoid flying micro silica powder caused by potential safety hazards.
For example, in the waterproof concrete mixed with an appropriate amount of micro silica powder, can improve the impermeability of concrete, reduce the structural section, speed up the construction progress; in the waterproofing coatings to add micro silica powder, can enhance the gap-filling penetration ability of the coating and densification, so as to enhance the waterproofing effect.
Different waterproof materials and use scenarios may have a certain impact on the specific application and effect of microsilica powder, so in the actual application, need to be tested and adjusted according to the specific circumstances to achieve the best waterproof effect. At the same time, it is also crucial to choose reliable quality micro silica powder products, whose main physical and chemical indexes include silica content, loss on burning, average particle size, specific surface area, volcanic ash activity index and so on.
