| 摘要 |
<p>Prefabricated sound insulating and sound absorbing panel (10) for building construction, roads, tunnels and the like, comprising at least two structural layers (11.1, 12.1; 11.2, 12.2), one of which at least contains blast furnace slag as sound insulating material, characterized in that said panel (10) comprises:
- a back base layer (11.1; 12.1), made with a deep blending of concrete and slag in powder state and forming a barrier with a high sound insulating power, and
- a front facing layer (11.2; 12.2), made with a deep blending of concrete and slag in natural granulated state, so-called granular slag, and forming a barrier with a high sound absorbing power. ( Fig. 1 )</p> |
