1. High-strength concrete (above C70) made of silica fume can significantly improve the strength and pumping performance of concrete;
2. Microsilica powder has reasonable particle size distribution, strong density, high hardness and good wear resistance. It can greatly improve the tensile strength, compressive strength, impact strength and wear resistance of cured products. The wear resistance can be increased by 0.5-2.5 times.
3. Silicon powder can increase thermal conductivity, change adhesion and increase flame retardancy.
4. Silicon powder can reduce the exothermic peak temperature of the epoxy resin curing reaction, reduce the linear expansion coefficient and shrinkage rate of the cured product, thereby eliminating internal stress and preventing cracking.
5. Due to the fine particle size and reasonable distribution of silicon powder, it can effectively reduce and eliminate precipitation and stratification;
6. Silicon powder has low impurity content and stable physical and chemical properties, making the cured product have good insulation properties and arc resistance.
The incorporation of silica fume not only has the above advantages, but its frost resistance and activity also have a very important impact on improving the quality of concrete.
