SUNDAR POZZO S12
Beneficiated classified fly ash as per BSEN 450-1 Category SSundarPozzo S12 is a beneficiated classified fly ash product from sundarpozzo company as per BSEN 450-1 Category S standard. Our FlyAsh improves long term strength of concrete due to the Pozzolanic reaction. The third generation air classifier process used to produce Sundarpozzo Beneficiated classified fly ash has enriched silica, aluminia in reactive form and less LOI, Iron content with good fineness, it leads to alkali silica reaction very smoothly.
Features of Fly Ash
- Spherical Shape
- Ball Bearing Effect
- Higher Strength
- Decreased Permeability
- Increased Durability
- Reduced Sulfate Attack
- Reduced Efflorescence
- Reduced Shrinkage
Benefits of using Fly Ash
- Improves Workability and Consolidation
- Increases Flexural and Compressive Strength
- Reduces Bleeding and Segregation
- Makes easier placement
- Improves pump ability
- Improves finish ability
- Reduces water requirements
- Improves durability
- Reduces Heat of Hydration
- Reduced Alkali Silica Reactivity
- Workability
- Ease of Pumping
- Reduced Slump
SPECIFICATION OF SUNDARPOZZO S - 12 Vs BS EN 450 -1(S) & BS 3892-1
| PARAMETERS | BS EN 450-1(N) | SUNDARPOZZO S - 12 | BS 3892-1 |
|---|---|---|---|
| LOI | Category A. 5.0% max B. 2.0-7.0% C. 4.0-9.0% |
2.0% max (Category A) | 7.0 % Max |
| Chloride as Cl | 0.1% max | 0.1% max | 0.1% max |
| Sulphate as SO3 | 3.0% max | 2.0% max | 3.0% max |
| Free CaO | 2.5% max If less than 1.0%, Soundness not applicable | 1.0% max Soundness not applicable | Not Applicable |
| Reactive CaO | 10% max | 10% max | Not Applicable |
| Total CaO | Not requirement | 10% max | 10% max |
| Reactive SiO2 | 25% min | 25% min | Not Applicable |
| SiO2 + Al2O3 Fe2O3 | 70% Min | 90% Min | 70% Min |
| Na2O | 5.0% max | 1.5% max | Not required |
| MgO | 4.0% max | 4.0% max | Not required |
| Phosphate as P2O5 | 100 mg/kg max | 100 mg/kg max | Not required |
| Fineness < 45 micron | Category N. 40% max( ±10% from declared value) | 34 % max (Category N) Fineness of individual samples shall not vary of max 10% from the average | 34.0 % Max Fineness of individual samples shall not vary of max 5% from the average |
| Activity index | 75% or 28 days and 85% for 91 days | 75% for 28 days and 85% for 91 days | 75% for 7 days and 75% for 28 days |
| Particle density | ± 200 kg/m3 w.r.t declared mean value Pykno meter method | ± 200 kg/m3 w.r.t declared mean value | Density of individual samples shall not vary of max 5% from the average Le chartlier method |
| Initial setting time | Not more than 120 minutes of OPC | Not more than 120 minutes of OPC | Not required |
| Water requirement | Not applicable | 105% Max | 105% Max |
| Soundness | 10.0mm Max If CaO < 1.0%, Soundness(Lechartlier method) not applicable | < 10.0 mm by Lechartlier method Or < 0.8% by Autoclave method | By Autoclave method 0.8% Max |