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Densified Silica Fume

Densified silica fume is the most common type of silica fume used by concrete manufacturers, divided into Grade 85D, Grade 90D, Grade 92D, Grade 94D and Grade 95D. It is widely used in various concrete construction projects.

What Is Densified Silica Fume?

Densified silica fume is a refined and enhanced form of microsilica, obtained from the production of silicon metals and alloys. Through a specialized process, the particles of silica fume are densified, resulting in increased bulk density and improved flowability. This densification enhances its performance in various applications, such as high-strength concrete, shotcrete, and refractory materials, offering superior mechanical properties and durability for construction and engineering projects.

Densified Silica Fume Advantages
①Cost Reduction-The smaller the size of the product, the lower the price of transportation. And since densified silica fumes are in a compressed state, there is a reduction in the product’s cost of shipping or transportation.
②Dust Reduction-The densified state of the silica fume ensures that there is less dust during its use. The dustless nature of the silica fume creates a better working environment for workers. This makes them safe from the health risks involved in constantly inhaling the dust of silica fume.
③Easy mechanical pumping which enables great stirring-The compactibility of the silica fume plays a role in allowing for easier mixing as little quantity can be used for a large mix. It is particularly suitable for mechanical pumping, which is great for stirring.

The cluster effect of densified silica fume in the hardened pulp is obvious, and there are obvious cracks in some silica fume clusters, which increase the total porosity of the pure slurry and reduce the compressive strength of the clean slurry, which requires sufficient stirring Dispersion; dense silica fume in the concrete system, because the coarse aggregate is added first, it has a strong friction effect, after being broken up by a high-power mixer, there are fewer clusters and can be relatively well dispersed, and the silica fume The volcanic ash reaction plays a role in improving the interface transition zone, which increases the compressive strength of concrete. Contact us for details!