Silica fume, also known as microsilica, is a byproduct of producing silicon metal or ferrosilicon alloys. It is a highly reactive pozzolan with particles that are 100 times smaller than cement particles. In this guide, we will provide you with everything you need to know about 90u silica fume.
### What is 90u Silica Fume?
90u silica fume refers to silica fume with an average particle size of 90 microns. It is a fine powder that is used as a mineral admixture in concrete to improve its mechanical properties. .
### Step 1: Handling Precautions.
When working with 90u silica fume, it is important to take safety precautions. Wear appropriate personal protective equipment such as gloves, goggles, and a mask to avoid inhalation or skin contact.
### Step 2: Mixing with Concrete.
To incorporate 90u silica fume into concrete, mix it with water to form a slurry before adding it to the concrete mix. This ensures uniform distribution of the silica fume particles.
### Step 3: Benefits of Using 90u Silica Fume.
- Improved compressive strength: 90u silica fume enhances the strength and durability of concrete by filling in the gaps between cement particles.
- Reduced permeability: The fine particles of silica fume block pores in concrete, reducing its permeability to water and other substances.
- Increased durability: Concrete mixed with 90u silica fume is more resistant to corrosion, abrasion, and chemical attacks.
### Step 4: Applications of 90u Silica Fume.
90u silica fume is commonly used in high-performance concrete applications such as:
- High-rise buildings.
- Bridges.
- Marine structures.
- Industrial floors.
### Conclusion.
In conclusion, 90u silica fume is a valuable additive that can significantly improve the performance of concrete. By following the steps outlined in this guide and taking the necessary precautions, you can harness the benefits of using 90u silica fume in your construction projects.
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