Core answer: Silica fume is mainly used to improve concrete performance, manufacture high-strength building materials, improve soil, enhance coating performance, and is used in industrial fields such as plastics and rubber.
Concrete Engineering
Improving performance: Silica fume fills the gaps between cement particles to generate C-S-H gel, which significantly improves the compressive strength, impermeability, corrosion resistance and durability of concrete. It is especially suitable for high-performance concrete, hydraulic concrete, shotcrete and other scenes.
Special environment applications: Such as concrete engineering that is resistant to sulfate and chloride corrosion (such as marine engineering, chemical plants) and emergency repair projects that require rapid hardening.
Building materials
Functional materials: Used to prepare self-leveling concrete, amorphous refractory materials, high-strength non-shrinkage grouting materials, wear-resistant industrial floors, etc., to improve the strength, stability and construction efficiency of materials.
Repair and protection: Such as repair mortar, polymer mortar and flame retardant coatings, to enhance the repair ability and fire resistance of building structures.
Soil improvement
Soil stabilization: By filling soil gaps, it improves frost resistance and erosion resistance, prevents settlement, and is suitable for foundation reinforcement and ecological restoration projects.
Coatings and polymer materials
Coating enhancement: As a filler, it can improve the toughness, corrosion resistance and surface smoothness of coatings.
Industrial modification: Used in plastics, rubber and other materials to improve their mechanical properties and weather resistance.
Other fields
Energy saving and environmental protection: Replacing part of cement can reduce concrete costs and hydration heat, which is in line with the trend of green building materials.