BK90 densified micro silica powder is processed by mechanical densification of original undensified powder. Bulk density rises to 550–650 kg/m³, greatly reducing dust during handling and transportation while retaining original pozzolanic activity. It is widely used in concrete, refractory castables and mortar where low-dust operation and loading efficiency are required.
Technical Specifications
| Product model | BK90-D |
|---|---|
| SiO₂ | ≥ 90.0% |
| Loss on ignition | ≤ 3.0% |
| Moisture | ≤ 1.5% |
| Water demand | ≤ 118% |
| Specific surface area | ≥ 15,000 m²/kg |
| Activity index | ≥ 110% |
| Bulk density | 550–650 kg/m³ |
| Standard | GB/T 27690-2023 |
| pH value | — |
| Packing | 25 kg bag or 1,000 kg jumbo bag |
Product Strengths
- Lower dust during handling
- Higher payload and lower logistics cost
- Original chemical activity retained
- Suitable for automatic batching
Target Applications
- Concrete batching plants
- Precast plants
- Refractory production
- Automatic weighing lines
Quality Assurance
- Densification degree and bulk density are precisely controlled.
- Monthly production capacity: 2,000 tons.
- Complies with GB/T 27690-2023.
Frequently Asked Questions
Does densification reduce activity?
No. Densification is physical agglomeration; pozzolanic activity is retained.
Which packing is standard?
A 1,000 kg jumbo bag is standard; 25 kg bags are optional.
