SF920D Densified Silica Fume: Engineered for Superior Concrete Performance
Unlock the next level of concrete performance with SF920D Densified Silica Fume. Transform ordinary concrete into a high-strength, highly durable, and corrosion-resistant engineering material.
Key Benefits for Your Concrete Projects
SF920D works through both pozzolanic activity and micro-filler effect to enhance concrete properties
Dramatically Increased Strength
High Activity Index of ≥125% at 7 days ensures rapid strength gain and long-term performance with significantly higher compressive and flexural strengths.
Superior Durability & Corrosion Resistance
Create an almost impermeable concrete barrier that drastically reduces chloride ion, water, and chemical ingress, protecting reinforcing steel from corrosion.
Enhanced Abrasion & Chemical Resistance
Ideal for industrial floors, marine structures, and chemical plants where surface wear and chemical attack are concerns.
Dense, Homogeneous Microstructure
The micro-filler effect leads to a non-porous, cohesive matrix, improving overall integrity and surface hardness.
Technical Performance Data in Concrete
See how SF920D enhances concrete performance compared to standard mixes
| Property | Test Method | SF920D Enhanced Concrete | Standard Concrete (Control) |
| Chloride Ion Penetration (Coulombs) | ASTM C1202 | ≤ 1000 (Very Low) | > 2000 (Moderate/High) |
| Compressive Strength @ 7 Days | ASTM C39 | 48.6 MPa | 38.9 MPa |
| Compressive Strength @ 28 Days | ASTM C39 | 62.1 MPa | 47.0 MPa |
| Activity Index @ 7 Days | ASTM C1240 | ≥ 125% | 100% (Baseline) |
Product Specifications
Comprehensive technical data for SF920D Densified Silica Fume
Physical Properties
| Parameter | Value |
| Form | Powder |
| Color | Gray |
| PH Value | 5-8 |
| Bulk Density | 500-700 kg/m³ |
Chemical Composition
| Component | Content (%) |
| SiO₂ | ≥ 92% |
| Moisture Content | ≤ 3% |
| Loss on Ignition | ≤ 4% |
| Al₂O₃ | ≤ 1.0% |
Applications of Our Silica Fume
High-Strength Concrete (UHPC&GFRC)
Improves compressive strength, durability & resistance.
Refractory Materials
Thermal Resistance- Used in castables and gunning mixes to improve resistance to extreme temperatures and wear.
Oil Well Cementing
Seal Integrity- Enhances the density and durability of oil well cement, ensuring long-term well integrity.
Shotcrete & Precast Concrete
Reduces permeability and increases long-term performance.
Marine Structures
Corrosion Resistance- Protects against chloride penetration, extending the lifespan of marine and coastal structures.
Industrial Flooring
Abrasion Resistance- Ensures durability and performance in heavy-duty industrial floors and pavements.
What Our Clients Say
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