Application of silica fume in wear-resistant floor

 Wear-resistant floors are widely used in the ground of various buildings, parking lots, offices, hospitals and a large number of public places. Wear-resistant floors require high wear resistance, crack resistance, permeability, mold resistance, Corrosion resistance and other functions, let's take a look at the application of silica fume in wear-resistant floors.

Silica fume for wear-resistant floor is mainly used in various anti-seepage and anti-impact parts, so what characteristics of silica fume can help wear-resistant floor realize these functions?


Silica fume particles are very, very fine, the average particle size of each silica fume is 0.1um, and the average surface area is 15000m2/kg. After adding silica fume to wear-resistant floor materials, silica fume can be mixed into wear-resistant materials to increase wear-resistant materials. The density and strength of the silica fume have excellent wear resistance. At the same time, due to the uniform density of silica fume, the adhesion of the wear-resistant material is greatly increased, and its firmness is stronger, so it is not easy to break. Excellent performance in anti-corrosion and other functions.

1. Silica fume is a neutral inorganic raw material with very stable physical and chemical properties. Does not contain crystal water, does not participate in the curing reaction, and does not affect the reaction mechanism.

2. It has excellent wettability to various resins, good adsorption function, easy to mix, and no agglomeration phenomenon.

3. The particle size distribution of silica fume is reasonable and fine, with high hardness and good wear resistance. It can be strengthened and solidified with high tensile, compressive and impact strength and strong wear resistance. It can be advanced by 0.5-2.5 times.

4. It can increase the thermal conductivity, replace the adhesive, and increase the flame retardant function.

5. Due to the fine particle size and reasonable distribution of silica fume, it helps to reduce and eliminate the appearance of accumulation and stratification.

6. Silica fume is pure, with low impurity content and stable physical and chemical functions, so that the cured material has excellent insulation and arc resistance functions.

7. Wear resistance and cavitation resistance: Compared with ordinary concrete, the wear resistance of silica fume concrete is increased by 0.5-2.5 times, and the cavitation resistance is increased by 3-16 times.

8. Frost resistance: Adding 10% silica fume to concrete, after hundreds of times of freezing and thawing, the relative dynamic elasticity of concrete can be reduced by 1-2%, even for common concrete, after dozens of cycles, Its relative dynamic elasticity can be reduced by 36-73%.

9. Early strength: Silica fume concrete shortens the induction period and has the characteristics of early strength.

Silicon fume, also known as micro-silica fume, scientific name silica fume, is processed by industrial electric furnaces during the process of melting industrial silicon and ferrosilicon at high temperature, using special collection devices to collect and process fumes from the exhaust gas. In the escaped soot, the SiO2 content accounts for about 90% of the total soot, the particle size is very small, and the average particle size almost reaches the nanometer level, so it is called silicon powder.

During the high-temperature melting process of industrial silicon and ferrosilicon, the dust that escapes from the waste gas is silica fume or silicon powder, and its main component is active SiO2 (about 90%, including about 10% free SiO2). The particles are very small, one percent of the size of cement particles, with small capacity and large specific surface area. The inherent micro-silica powder, known as silica powder, can be directly inhaled into the alveoli of the human body, causing great harm to human health. Micro silica fume is widely used in construction, chemical industry, metallurgy and other industries. In concrete, concrete is mainly used as an active admixture to improve the performance of cement or concrete, and to prepare special concrete with ultra-high strength, wear resistance, corrosion resistance, penetration and frost resistance, and high early strength, which can be used in large-scale hydropower , ports, railway bridges, highways, airport runways, tunnels, urban high-rise buildings and other projects.

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