94% Undensified Microsilica (دخان السيليكا) 94ش
94% دخان السيليكا غير المكثف (94ش) 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 ل 350 كجم/م3, 94% Undensified Silica Fume is lightweight and easy to handle, resulting in reduced transportation costs. Its specific surface area, typically between 15,000 و 30,000 م2/كجم, allows for a high pozzolanic reactivity that enhances the mechanical and durability properties of the final products.
طلب اقتباس مخصص
سمات
- 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
Application
- 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
حدود
| ملكية | قيمة |
|---|---|
| SiO2 (ثاني أكسيد السيليكون, Amorphous) | 94% min |
| Al2O3 (أكسيد الألومنيوم) | Typical 0.55% |
| Fe2O3 (أكسيد الحديد) | Typical 0.16% |
| تساو (أكسيد الكالسيوم) | Typical 0.38% |
| أهداب الشوق (أكسيد المغنيسيوم) | Typical 0.58% |
| K2O (أكسيد البوتاسيوم) | Typical 1.24% |
| Na2O (أكسيد الصوديوم) | Typical 0.29% |
| LOI (Loss on Ignition) | 4% max |
| Moisture | 3% max, Typical 0.52% |
| Retained on 45 micron sieve | 10% max, Typical 1.03% |
| الكثافة الظاهرية | 250-350 كجم/م3 |
| pH | 6-8 |
| Fluidity | > 18 cm |
| Specific surface (BET) | 18 m2/gram min |
التعليمات
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أسس في 2001, HSA هي الشركة الرائدة في مجال توفير أبخرة السيليكا والمواد الكاشطة في الصين, وأيضًا المصدر المتميز للمنتجات عالية الأداء للصناعات الخرسانية والمواد الكاشطة.
