Silicon powder /Micro Silicon-Powder
Silicon powder, also known as micro silicon powder, scientific name silicon ash, is a industrial electric furnace in the process of high temperature melting industrial silicon and silicon iron, and the smoke and dust from the exhaust gas is collected by a special capture device. In the cigarette dust, the SIO2 content accounts for about 90%of the total amount of smoke, the particle size is very small, and the average particle size is almost nano -level, so it is called silicon powder.
- Grade: Customized
- Size: Customized
In terms of particle size, silicon micropowder is processed from natural quartz. The particle size is relatively large, including 200 mesh, 300 mesh, 400 mesh, 500 mesh, 600 mesh, 800 mesh, 1000 mesh, 1250 mesh, 3000 mesh, 5000 mesh, 10000 mesh is a kind of powder state. The fineness of micro-silica powder is less than 1 μm, accounting for more than 80%, and the average particle size is 0.1-0.3 μm, which is a kind of gray state.
Microsilica can fill the pores between cement particles, and at the same time form a gel with the hydration product, and react with the alkaline material magnesium oxide to form a gel. Adding an appropriate amount of silica fume to cement-based concrete, mortar and refractory castables can play the following roles:
1. Significantly improve the compression resistance, flexural resistance, impermeability, anti-corrosion, impact resistance and wear resistance.
2. It has the functions of water retention, preventing segregation and bleeding, and greatly reducing the resistance of concrete pumping.
3. Significantly prolong the service life of concrete. Especially in harsh environments such as chloride pollution erosion, sulfate erosion, high humidity, etc., the durability of concrete can be doubled or even several times.
4. Significantly reduce the ground dust of sprayed concrete and castables, and increase the thickness of a single spray layer.
5. It is a necessary component of high-strength concrete, and has been used in engineering applications of C150 concrete.
6. It has about 5 times the effect of cement, and it can reduce costs and improve durability when used in ordinary concrete and low-cement castables.
7. Effectively prevent concrete-alkali-aggregate reaction.
8. Improve the compactness of castable refractories. When it coexists with Al2O3, it is easier to form mullite phase, which enhances its high temperature strength and thermal shock resistance.
9. It has a strong pozzolanic effect. When mixing concrete, it can undergo a secondary hydration reaction with the cement hydration product Ca(OH)2 to form a gelled product, fill the cement stone structure, improve the microstructure of the slurry, and increase the Mechanical properties and durability of hardened bodies.
10. Silica fume is amorphous spherical particles, which can improve the rheological properties of concrete.
11. The average particle size of microsilica fume is relatively small, which has a good filling effect and can be filled in the gaps between cement particles to improve the strength and durability of concrete
- Export - Metals
- silicon manganese
- Inoculant
- Silicon Carbide
- Recarburizer
- Ferro Silicon
- Silicon Metal
- Ferro Manganese
- High Carbon Silicon
- Nodulizer
- Cored Wire
- Silicon briquette
- Silicon powder /Micro Silicon-Powder
- Silicon slag/Low carbon silicon
- Ferro chrome
- Calcium Silicon
- Electrolytic Manganese Flakes
- Ferro Silicon Aluminum
- Silicon aluminum barium calcium
- Silicon calcium manganese
- Silicon barium calcium
