• The silica content is high, generally above 90% and up to 97%.
• The particles are super fine, with an average particle size of 0.15 μm, which is only 1% of cement particles.
• The specific surface area reaches 18000㎡/kg, and it has strong surface activity.

we are a professional manufacturer of silica fume, with a variety of submerged arc furnace types.And we have 5 production base in China.

Sure, samples would be available for testing purpose.

Usually our samples is for free in testing quantity,

Standard packaging is 25kg neutral white coated plastic woven bag and 500-1000kg neutral white ton bag

• In the application of high-strength, high wear-resistant, anti-shock concrete poured under water, the content of micro silica fume should not be too low, usually accounting for 5%-10% of the cementitious material
• In ordinary strength, impermeability, high durability or self-compacting concrete, multi-component cementitious materials with low content of silica fume can be used, usually accounting for 2%-5% of cementitious materials

• Improve pumping performance
• Can withstand more vibration without segregation
• Good fluidity and maintain shear strength
• Concrete pouring underwater: adding micro silica fume can prevent it from being washed away by water