Concrete retarder admixture – Silica fume particle size
Technical Data: Test Item Standard Result Standard Result Standard Result Standard Result SF85 SF90 SF94 SF96 SiO2 (%) 85% min 87.94% 90% min 92.05% 94% min 95.46% 96% min 97.68% Fe2O3 (%) 2.0% max 0.47% 2.0% max 0.57% 2.0% max 0.04% 2.0% max 0.02% Al2O3 (%) 2.0% max 0.42% 2.0%…