Application And Sales Of Micro-Silica Fume In Building Materials

Microsilica fume is an excellent material with broad application prospects in high-tech fields at home and abroad, and can be widely used in chemical, metallurgical and other industries. Used in cement or concrete, it can improve the performance of cement or concrete, and prepare special concrete or composite cement with super high, high strength, abrasion resistance, erosion resistance, corrosion resistance, penetration resistance, frost resistance, and early strength to adapt to oilfield solidification. Special requirements for wells, offshore oilfield drilling platforms, seaports, railway bridges, highways, airport runways, tunnels and urban high-rise buildings; used in rubber can improve the extensibility, tear resistance and tensile strength of rubber; Used in refractory materials and ceramic products to effectively improve the strength and durability of the product.

1. Microsilica fume concrete is used in water conservancy and hydropower projects to improve the abrasion resistance of the project. Traditional anti-abrasion materials at home and abroad mostly use polymer materials such as epoxy mortar. Although this type of material has good abrasion resistance, it is because of its own line The expansion coefficient is several times that of the base ordinary concrete, which does not adapt well to the temperature of the base concrete. It is easy to crack and fall off under natural climatic conditions, and the construction is complicated, toxic, expensive, and cannot be widely applied. The use of micro-silica fume concrete can double the erosion and abrasion resistance, and the abrasion resistance of the 48m/s flow rate level can be increased by more than 3 times.

2. Microsilica fume concrete is used in water conservancy projects, which can improve the crack resistance of the project. Cracks in hydraulic concrete have become a major issue of general concern. The cause of the cracks is due to the heat of hydration of the material itself. If fly ash is mixed into concrete, although it can reduce the temperature of chemical heating, the early strength is relatively low, which limits the amount of fly ash.

3. Micro-silica fume concrete can improve anti-permeability and anti-salt corrosion performance, and protect steel bars.

In underwater projects, chloride ions infiltrate into concrete, causing rapid corrosion of steel bars, delamination of concrete, short life span, and serious damage. Conduit method is generally used for underwater concrete pouring. Due to the loss of cement slurry, it cannot bond well with the base layer and reduces the strength of the part in contact with water. After adding micro-silica fume into underwater concrete, these problems can be significantly improved. 4. Micro-silica fume concrete is used in the emergency repair of traffic road pavement, with strong wear resistance characteristics

It takes 28 days to pour roads with ordinary concrete to open to traffic. Generally, early-strength concrete also takes 3 days to open to traffic. Damage to the concrete road surface is inevitable. Repairing with conventional methods often results in traffic interruption, which can cause serious economic losses. And the use of micro-silica fume concrete with early strength and wear resistance characteristics, the actual effect is very ideal. The runway of the airport requires the use of concrete of more than 80MPa and good wear resistance, and micro-silica fume can also show its talents.