| 摘要 |
The invention relates to a sandwich building element, comprising a core member (2), and surface layers (3, 4) present on its two opposite main surfaces. The core member is composed of lamellae of mineral wool extending lengthwise of the building element. The surface layers are laminated on the core member by fixing the same with an adhesive to the opposite main surfaces of the core member. The core member (2) consists of at least two lamellae (20, 25, 41, 42) different from each other in items of their fire resistance, strength, and/or other properties. |
