AAC raw material analysis
(only for reference,the materials components could be change according fact)
(only for reference,the materials components could be change according fact)
| 1. Sand- 60-70% | ||||
| Super Grade | First Grade | Qualified product | ||
| SiO2 | ≥ | 85% | 75% | 65% |
| CI- | 0.02% | 0.03% | 0.03% | |
| Mica | ≤ | 0.5% | 0.5% | 1% |
| SO3 | ≤ | 1% | 1% | 2% |
| clay | ≤ | 3% | 5% | 8% |
| K2O+Na2O | ≤ | 1.5% | 3% | 5% |
| 2. Lime - 15-25% | ||||||
| Item | Grade | |||||
| Super Grade | First Grade | Qualified product | ||||
| A(CaO+MgO) Quality Fraction % | ≥ | 90 | 75 | 65 | ||
| MgO Quality Fraction % | ≤ | 2 | 5 | 8 | ||
| SiO2 Quality Fraction % | ≤ | 2 | 5 | 8 | ||
| CO2 Quality Fraction % | ≤ | 2 | 5 | 7 | ||
| Digestion speed ,min | ≤ | 5-15 | ||||
| Digestion temperature | ≥ | 60-90 | ||||
| Undigested residue quality fraction ,% | ≤ | 5 | 10 | 15 | ||
| Fineness (0.080 square hole sieve left amount) % | ≤ | 10 | 15 | 20 | ||
| 3.Cement (%)- 10-15% | ||||||||
| SiO2 | Al2O3 | Fe2O3 | CaO | MgO | C3S | C2S | C3A | C4AF |
| 21-23 | 5-7 | 3-5 | 64-48 | 4-5 | 44-59 | 18-30 | 5-12 | 10-18 |
| 4. Plaster-3% | ||
| CaSO4 | > | 70% |
| MgO | < | 2% |
| Chloride | < | 0.05% |
| Preferably ground residue 90µm | < | 10-15% |
| 5. Aluminium0.074% | |||
| Type and recommendation for supply depend on raw materials and mix formula | |||
| Metal Content | Approx. | >=65% | Powder |