SUNDAR POZZO S34
Beneficiated classified fly ash as per ASTM C618 Class FSundarPozzo S34 is a beneficiated classified fly ash product from sundarpozzo company as per ASTM C618 Class F standard. Our FlyAsh makes concrete denser and hence less permeable, mainly by reducing water demand in concrete, improving microstructure of concrete it delays the heat of hydrarion and hence reduces the thermal cracks in concrete, it improves the workability of concrete.
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 - 34 Vs BS EN 450 -1(N) & ASTM C618F
| PARAMETERS | BS EN 450-1(N) | SUNDARPOZZO S - 34 | ASTM C618 ClASS F |
|---|---|---|---|
| LOI | Category A. 5.0% max B. 2.0-7.0% C. 4.0-9.0% |
2.0% max (Category A) | 6.0 % Max |
| Chloride as Cl | 0.1% max | 0.1% max | Not Applicable |
| Sulphate as SO3 | 3.0% max | 2.0% max | 5.0% max |
| Free CaO | 2.5% max If < 1.0%, Soundness not applicable | 1.0% max Soundness not applicable | Not Applicable |
| Reactive CaO | 10% max | 10% max | Not Applicable |
| Total CaO | Not required | 10% max | Not Applicable |
| 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 |