Silica Fume

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Henan Superior Abrasives Import and Export 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 silica fume specifications are mainly:

The appearance is grey or gray – white powder, and the refractoriness is >1600℃.

  • Undensified Silica Fume (320-360kg/m³)
  • Densified Silica Fume (630-680 kg/m³)
85% Undensified Silica Fume

Silica fume powder is black or gray in color, and is available in several product forms and packaging options. Our Undensified Silica Fume products Bulk density: 190-360kg/m³,  85% Silica fume is produced in conformance with the ASTM specifications.

85 Grade densified silica fume
85% Densified Silica Fume

85 Grade Densified Silica Fume Bulk density (630-680 kg/m³);

Silicon Dioxide (SiO2): MINIMUM 85%
Moisture Content: 3.0% Maximum
Loss On Ignition (LOI): 6.0% Mximum

92% Undensified Silica Fume
92% Undensified Silica Fume

Undensified Silica Fume is mainly composed of SiO2 wollastonite, particle characteristics is ultrafine powder, the vast majority is less than 1 um, the average particle size is 0.1 um, has very high specific surface area (300-400 M2 / kg) and pozzolanic activity.

92% Densified Silica Fume
92% Densified Silica Fume

Our Densified Silica Fume products include: (630-680 kg/m³)

Silicon Dioxide (SiO2): MINIMUM 92%
Moisture Content: 3.0% Maximum
Loss On Ignition (LOI): 6.0% Maximum

94% Undensified Silica Fume
94% Undensified Silica Fume

Bulk Density:250-350Kg/M3

94% Densified Silica Fume
94% Densified Silica Fume

Silica fume, also known as microsilica, is an amorphous (non-crystalline) polymorph of silicon dioxide, silica. It is an ultrafine powder collected as a by-product during silicon and ferrosilicon alloy production.

96% Undensified Silica Fume
96% Undensified Silica Fume

Silica fume is a mineral admixture, composed of submicron particles (100 to 150 times smaller than a grain of cement) of amorphous silicon dioxide.  Silica fume powder is gray to off-white in color, and is available in several product forms and packaging options.

Microsilica 950 D
96% Densified Silica Fume

Silicon Dioxide(SiO2): 96% min
Loss on Ignition(L.O.I): 3 % max
Moisture Content(H2O ): 1.0 % max
Percent Retained On 45μm (325 sieve): 2.0 % max
Bulk Density: 350-700kg/m³

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