Micro Silica, also known as Silica Fume, is an ultra-fine pozzolanic mineral admixture used to enhance the strength, durability, and impermeability of concrete and cementitious mortars. It reacts with free lime in cement to produce additional calcium silicate hydrate (C-S-H), resulting in denser, stronger, and more durable concrete. Micro Silica is widely used in high-performance concrete, industrial flooring, bridges, marine structures, tunnels, and waterproofing applications.
Advantages
- Increases compressive and flexural strength
- Reduces concrete permeability and water absorption
- Improves resistance to chloride and chemical attack
- Enhances abrasion and wear resistance
- Minimizes bleeding and segregation
- Improves bond strength with reinforcement
- Increases durability and service life of concrete
- Enhances resistance to sulphate and marine environments
- Produces dense, high-performance concrete
- Improves freeze-thaw resistance
- Reduces maintenance and repair costs
- Suitable for high-strength and waterproof concrete applications
