10 Questions You Should Know about 90u Silica Fume

 

10 Questions You Should Know about 90u Silica Fumeve pozzolanic material that is produced as a byproduct during the production of silicon metal or ferrosilicon alloys. It is composed of fine particles, with 90% of the material passing through a 90-micron sieve.

2. What are the properties of 90u Silica Fume?

90u Silica Fume has a high silica content, typically above 85%. It is highly reactive with calcium hydroxide, leading to improved strength and durability in concrete. It also has a high surface area, which allows for better bonding with cement particles.

3. How is 90u Silica Fume used in concrete?

90u Silica Fume is typically used as a partial replacement for cement in concrete mixtures. It is added to improve the compressive strength, durability, and impermeability of the concrete. It is commonly used in high-performance concrete applications.

4. What are the benefits of using 90u Silica Fume in concrete?

Some of the benefits of using 90u Silica Fume in concrete include increased strength, reduced permeability, improved durability, and enhanced resistance to chemical attacks. It also helps in reducing the risk of alkali-silica reaction and corrosion of reinforcing steel.

5. How is 90u Silica Fume added to concrete mixtures?

90u Silica Fume is typically added to concrete mixtures as a separate admixture. It is usually premixed with the other dry materials before adding water. The dosage of 90u Silica Fume varies depending on the desired properties of the concrete.

6. What precautions should be taken when using 90u Silica Fume?

When using 90u Silica Fume, it is important to take precautions to prevent exposure to the fine particles. This includes wearing protective clothing, using a dust mask, and ensuring adequate ventilation. It is also important to follow proper handling and storage procedures.

7. Can 90u Silica Fume be used in other applications besides concrete?

Yes, 90u Silica Fume can be used in a variety of other applications besides concrete. It is commonly used as a filler in rubber and plastic products, as well as in refractory materials and coatings.

8. What is the cost of 90u Silica Fume?

The cost of 90u Silica Fume can vary depending on the quantity and quality of the material. Generally, it is more expensive than traditional cement, but the benefits it provides in terms of performance and durability often justify the cost.

9. How can the quality of 90u Silica Fume be ensured?

The quality of 90u Silica Fume can be ensured by purchasing it from reputable suppliers who adhere to strict quality control standards. It is also important to conduct regular testing of the material to ensure that it meets the desired specifications.

10. In what forms is 90u Silica Fume available?

90u Silica Fume is typically available in powder form, packed in bags or bulk containers. It is important to store the material in a dry environment to prevent it from absorbing moisture and losing its effectiveness.

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