Moulding Sand Specimens | Additives | Proportions of Mould Additives (%) |
A | None | 0 |
B | Iron dust | 20% |
C | Iron dust | 25% |
D | Sawdust | 20% |
E | Sawdust | 25% |
F | Charcoal dust | 25% |
G | Iron dust and charcoal dust | 20% |
H | Sawdust and charcoal dust | 25% |
I | Sawdust, charcoal dust and iron dust | 20% |
J | Sawdust, charcoal dust and iron dust | 25% |