1, Silica fume makes high strength concrete (above C70), which can significantly improve the strength and pumping performance of concrete.
2, manufacturing high permeability (more than P30), self waterproofing concrete, used for the subway, tunnel, high-rise building basement;
3, the size distribution of microsilica is reasonable, large dense, large hardness and wear resistance. It can greatly improve the tensile strength, compressive strength, impact strength and wear resistance of the condensate, and the abrasion resistance can be increased by 0.5 to 2.5 times.
4, the micro silica fume can increase the thermal conductivity, change the adhesive viscosity and increase the flame retardancy.
5, it can reduce the exothermic peak temperature of curing reaction of epoxy resin, reduce the linear expansion coefficient and shrinkage rate of solidified products, thereby eliminating internal stress and preventing cracking.
6. Due to the fine grain size and reasonable distribution of the silica fume, it can effectively reduce and eliminate precipitation and stratification.
7. The silica fume is pure, the impurity content is low, the physicochemical property is stable, which makes the curing material have good insulation property and anti arc property.
8, manufacturing marine and chemical concrete, because of its high density performance, effectively prevent the penetration and erosion of sulfate and chloride ions to concrete, and avoid corrosion of concrete bars, thereby prolonging the life of concrete.
9, the chemical composition of silica fume is silica (SiO2), which belongs to inert material. It has no chemical reaction with most acids and alkaloids. Micro silica fume is evenly distributed and covered on the surface of objects. It has strong corrosion resistance and cavitation resistance increased 3 – 16 times.
10, the bulk density of microsilica fume is small: one is between 0.2-0.8 and one is between 1.0-2.2. As polymer filling material, it can reduce the cost of the product by reducing the amount of loading and saving the amount of polymer.
11, microsilica fume frost resistance: after 300 to 500 cycles rapid freezing and thawing, the micro silica fume’s relative elastic modulus is increased 10 to 20%, while ordinary concrete through 25 to 50 cycles, the relative elastic modulus is low to 30 – 73%. Therefore, the frost resistance of concrete can be improved.
12, the early strength of silica fume powder: silica fume concrete makes the induction period shorten and has the characteristics of early strength.
13, microsilica in water conservancy, highway and bridge engineering project, concrete not only need the basic index, more has very stringent requirements on its wear resistance, erosion resistance, mixing silica fume is very necessary;
14, the strong activity of micro silicon powder, has the water reducing performance, suitable for early strength, rapid construction in need of high strength concrete admixtures; tunnel, subway, large foundation pit structure in the construction for the high strength shotcrete admixtures; underwater construction project (such as: bridge pier, dam, drilling platform, etc.);
Henan Superior Abrasives I/E Co., Ltd is one of the largest Silica Fume Suppliers in China, and also the premium source of high-performance Silica Fume products for concrete and refractory industries.
Our products are grade 85 silica fume, grade 92 microsilica fume, grade 94 microsilica, grade 96 silicon fume, include undensified (320-360kg/m³) and densified (630-680 kg/m³).
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