| 摘要 |
<p>The panel comprises two structural layers 112, 114 forming an inner and outer wall of the panel and a core inner barrier layer 106 located in between the structural layers, the barrier layer having a higher level of resistance to penetration than the structural layers. Preferably the barrier layer is ribbed / perforated or may comprise a flattened expanded steel lattice sheet. There may be a second barrier layer located within the panel made from plywood. The panel may connect to adjacent panels via a tongue and groove edge profile where the upper end of the first structural layer comprises two grooves and the lower end comprises a pair of tongues. The panel may also incorporate an integrated lifting strap. Also claimed are a method of constructing the panel, where the structural layers are bonded together using an adhesive. Also claimed is a secure structure comprising a number of panels adjacent to each other to form walls and ceilings.</p> |
