Research Article
Experimental Study on Impact Absorption Capacity of Various Expanded Materials for Rock Shed
Table 1
Material property of the expanded material.
| | Marks | Main component | Expanding magnification (times) | Weight of unit volume (kN/m3) | Primary applications |
| | ST | Polystyrene | 50 | 0.212 | Measures for land subsidence and those for reducing falling rock | | PP | Polypropylene | 45 | 0.195 | Fenders and car bumpers | | EST | Polyethylene-polystyrene complex | 30 | 0.304 | Cushioning material of precision apparatus and home electric appliances |
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