High Content SIO2 Silica Fume 96U From Silicon Metal Production Line

High Content SIO2 Silica Fume 96U From Silicon Metal Production Line

High content SIO2 silica fume 96U from silicon metal production line Specifications : Silica fume complies with the provisions and specifications of ASTM C-1240 . Storage : Microsilica fume is slightly hygroscopic. A slight increase in moisture content is to be expected from production through...

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High content SIO2 silica fume 96U from silicon metal production line

Specifications :                                

Silica fume complies with the provisions and specifications of ASTM C-1240 .


Storage :                                            

Microsilica fume is slightly hygroscopic. A slight increase in moisture content is to be expected from production through shipment and during storage. Normally an equilibrium value in the range of 0.8-1.2% is attained depending on the ambient conditions. Specific limit values for moisture content is restricted to material condition at the time of delivery, unless otherwise specified, and tested according to Standard Test Methods for Microsilica, Test M-1; Water Content.


Dosage:                                             

In order to give best results, Microsilica should be used in quantities of 3-8 wt% of the total dry mix. When optimum particle packing is applied, the water demand is normally 4 - 5% of the total dry weight, depending on the Microsilica quantity.


Deflocculants:                                   

For Microsilica to have the desired flow enhancing properties, it is vital that it is well-dispersed. It is generally advised to use a deflocculant. Among a variety of different additives available, the most commonly used in Microsilica containing castables are polyacrylates and different phosphates.

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