Physico-chemical of Silica Fume

Physico-chemical of Silica Fume

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Silica Fume is an ultrafine powder. Primary silica fume particles that exhibit a perfectly spherical shape are in the size range of 0.02 - 1.0 µm (average particle size 0.15 µm). During collection, cooling and bagging, the primary particles form larger agglomerates (not aggregates), as shown in the Transmission Electron Microscopy (TEM) pictures. The specific surface area (BET) is typically…
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Low price Microsilica 85 grade

Low price Microsilica 85 grade

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Silica fume is a very fine powder - the particles are approximately 1/100 the diameter of portland cement grains. When used to produce high-performance concrete, silica fume is typically 4-15% of cement weight. The exact addition rate depends upon the specific performance characteristic to be improved. Compared to the other ingredients in concrete, the amount of silica fume used is…
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Undensified microsilica factory

Undensified microsilica factory

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Bulk Density:300-350kg/m3 SiO2: 88% - 97%min 500kgs/jumbo bag, 25kg/PP bag, or as customer's request Introduction Micro silica ,also called silica fume or micro silica, is a byproduct of production silicon metal or ferrosilicon alloys. Silicon metal and alloys are produced in electric furnaces.The raw materials are quartz,coal and woodchips.The smoke that results from furnace operation is collected and sold as…
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China undensified silica fume supplier

China undensified silica fume supplier

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The undensified silica fume is produced by the condensation of gas and dust released by metal silicon at high temperature. It has the characteristics of large specific surface, high activity and strong micro aggregate. Because of its low accumulation density, about 200 kilograms per cubic meter, the volume of densified silica fume is larger than that of the same weight,…
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Low price white microsilica for sale

Low price white microsilica for sale

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According to different application, Henan Superior Abrasives supply different grade microsilica /silica fume. Henan Superior Abrasives white silica fume is applied to the compound fertilizer, pesticide (as adsorbent, or producting silicon fertilizer), coating, paint (as a thickener, anti-sinking agent), rubber (as reinforcing agent), plastic (as the filling agent), special porcelain, can substitute the white carbon black and reduce the cost.…
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Microsilica for castable factory

Microsilica for castable factory

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It is widely used in high performance refractory castables, silicon nitride sintering aids, ladle materials, self flow refractory castables, prefabricated parts, low or no cement castables and dry wet spraying materials, with high quality micro silica fume with ultra-fine particle size, low water storage and high fluidity. The specific performance and effect: can binder as refractory material and kiln materials,…
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Undensified Silica Fume

Undensified Silica Fume

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Undensified Silica Fume Bulk density: 320-360kg/m³ 85% Undensified Silica Fume Chemical Component Element         Specification       Value SiO2:  %          85min                  88.1 Cl: %                  0.1max               0.013 H2O: %           …
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Densified Silica Fume

Densified Silica Fume

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85 Grade densified silica fume Specification: Chemical Component (weight %) Ask a quoto Send E-mail 92% Densified Silica Fume Bulk density: 630-680 kg/m³ Ask a quoto Send E-mail 92% Silica Fume Specifications: 94% Densified Silica Fume Phisical data: Properties         Spec        Typical value Loss on Ignition%            6 max    …
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