Silica Fume SD900 is a densified dry powder microsilica admixture for portland cement concrete and mortars.
Silica Fume SD900 is a pozzolanic material that consists primarily of fine silicon dioxide particles in a non-crystalline form.
Silica Fume SD900 meets the requirements of ASTM C-1240 and contains a minimum of 90% silicon dioxide (SiO2)