Micro Silica is ultra fine amorphous (non-crystalline) polymorph of silicon dioxide. Because of its extreme fineness and high silica content, silica fume is a highly effective pozzolanic material. Silica fume is used in concrete to improve compressive strength, bond strength. It is highly resistive to impact, abrasion, heat and chemical attacks. It also reduces permeability; and therefore helps in protecting reinforcing steel from corrosion.
Advantage
Reduces thermal cracking caused by the heat of cement hydration
High Strength Concrete
Waterproof Concrete
Improves durability to attack by sulphate and acidic waters
Reduces the early age temperature rise
Silica fume is cheap; therefore, it is cost-effective