Material Composition
| Type | Core Materials | Reinforcement | Binder |
|---|---|---|---|
| Plastic-Wood | Recycled HDPE (60-70%) + Wood Fiber (30-40%) | Glass Fiber Mesh | Polyurethane Adhesive |
| Fiberglass | Polyurethane Matrix (50%) | E-CR Glass Fibers (50%) | Epoxy Resin |
| Rubber-Based | Crumb Rubber (80%) | Steel Cord Reinforcement | Polymeric Binder |

Key Performance Parameters
| Parameter | Plastic-Wood | Fiberglass | Concrete Sleeper |
|---|---|---|---|
| Density (kg/m³) | 950-1100 | 1800-2000 | 2400-2600 |
| Flexural Strength (MPa) | 35-45 | 120-150 | 15-20 |
| Service Life (years) | 25-30 | 40+ | 40-50 |
| Noise Reduction (dB) | 5-7 | 3-5 | Baseline |
| Thermal Expansion (10⁻⁶/°C) | 70-90 | 15-20 | 10-12 |
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