silica fume / micro silica

Microsilica ( Silica Fume ) We are the leading manufacturer and supplier for Micro Silica. We have the densifier to help our customer to solve the transportation problem . Our micro silica are sold to many countries , almost 20 countries , which used for concrete , refractories , and we have obtained good reputation in the world . About the detailed SiO2 content, bulk density, packing term, etc, we can supply according to your requirement. Our products are certified by ISO9001 or SGS, and the standard accord with ASTM or EN. Microsilica is collected in the furnace filters from the production of FeSi and SiMet. It is a grey powder of small particles the size of those in cigarette smoke. A typical application is as a densifyer and strengthener of concrete, particularly required in slim structures and smooth water-proof surfaces. Among other uses are fibre cement sheets, refractoy and fertilizers. Silica fume consists primarily of amorphous (non-crystalline) silicon dioxide (SiO2), its average granule diameten T

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