Research Article
Physical and Combustion Characteristics of Briquettes Made from Water Hyacinth and Phytoplankton Scum as Binder
Table 3
Coefficient of static friction.
| Binder ratio | Galvanised steel | Rubber | Plywood sheet | Aluminium sheet |
| 90 : 10 | 0.47 (±0.02) | 0.48 (±0.03) | 0.56 (±0.02) | 0.43 (±0.01) | 80 : 20 | 0.46 (±0.01) | 0.44 (±0.02) | 0.51 (±0.03) | 0.37 (±0.01) | 70 : 30 | 0.41 (±0.05) | 0.44 (±0.03) | 0.49 (±0.01) | 0.38 (±0.03) | 60 : 40 | 0.37 (±0.03) | 0.38 (±0.01) | 0.45 (±0.04) | 0.33 (±0.05) | 50 : 50 | 0.35 (±0.04) | 0.34 (±0.02) | 0.43 (±0.03) | 0.31 (±0.03) |
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