Seller microsilica

existing form: amorphism thin powder typical color: brown (white in nature, the color is become darker with the density accretion) b.e.t fineness: 15-27m2/g density: 600-700kg/m3 pozzolanic activity index: 85 pourcent of 28days ; 105 pourcent of 7days water requirement ratio: less than 125 pourcent ratained on 45 micron sieve: less than 8 pourcent moisture: less than 3 pourcent loss on ignition: less than 3 pourcent