94% Неуплотненный микрокремнезем (Кремнезем Дым) 94ты
94% Неуплотненный кремнеземный дым (94ты) is a highly effective supplementary cementitious material derived from the byproduct of silicon and ferrosilicon alloy production. It contains approximately 94% amorphous silica (SiO2) and possesses exceptional physical and chemical properties that make it a valuable addition to various construction materials, especially concrete and cement-based products.
With a low bulk density ranging from 250 к 350 кг/м3, 94% Undensified Silica Fume is lightweight and easy to handle, resulting in reduced transportation costs. Its specific surface area, typically between 15,000 and 30,000 m2/kg, allows for a high pozzolanic reactivity that enhances the mechanical and durability properties of the final products.
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Функции
- Increased compressive and flexural strength
- Reduced permeability and water ingress
- Enhanced resistance to chemical attack and abrasion
- Improved long-term performance and durability
- Lightweight and easy to handle
- Cost-effective and environmentally friendly
Приложение
- High-performance concrete (HPC)
- Precast and prestressed concrete elements
- Shotcrete for tunnel linings and slope stabilization
- Self-compacting concrete (SCC)
- Fiber-reinforced concrete (FRC)
- Repair and rehabilitation of damaged structures
- Oil well cementing and grouting
- Refractory materials for high-temperature applications
- High-quality ceramics, coatings, and polymers
- Green and sustainable building materials
Параметры
| Property | Value |
|---|---|
| SiO2 (Silicon Dioxide, Amorphous) | 94% мин |
| Al2O3 (Aluminum Oxide) | Typical 0.55% |
| Fe2O3 (Iron Oxide) | Typical 0.16% |
| СаО (Calcium Oxide) | Typical 0.38% |
| MgO (Magnesium Oxide) | Typical 0.58% |
| K2O (Potassium Oxide) | Typical 1.24% |
| Na2O (Sodium Oxide) | Typical 0.29% |
| LOI (Loss on Ignition) | 4% Макс |
| Moisture | 3% Макс, Typical 0.52% |
| Retained on 45 micron sieve | 10% Макс, Typical 1.03% |
| Объемная плотность | 250-350 кг/м3 |
| pH | 6-8 |
| Fluidity | > 18 cm |
| Specific surface (BET) | 18 m2/gram min |
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Основан в 2001, HSA является ведущим поставщиком кремнезема и абразивов в Китае., а также поставщик высококачественной продукции премиум-класса для бетонной и абразивной промышленности..
