Refractory admixture silica fume
Micro silica Physicochemical Properties: 1, Micro silica appearance: white；Refractoriness > 1600 ℃； Bulk density: 200 to 250 kg / m3. 2, Micro silica fineness: 90% fineness of 0.1μm; average particle size of 0.1 - 0.2μm, specific surface area: 20 - 28 m2 / g. Micro silica fineness and specific surface…