| 摘要 |
The present invention relates to a reinforced concrete building element or structural building part comprising a first reinforcement lattice (10) and a second reinforcement lattice (11), the first and second reinforcements (10, 11) being arranged in longitudinal and transversal directions in opposite substantially parallel outer layers (12, 13) and being connected to each other by means of a third reinforcement (15) which consists of a trusslike lattice having diagonal struts running in a centre layer (16) between the two outer layers (12, 13). The two outer layers (12, 13) are made from normal or high strength concrete while the centre layer is made from lightweight concrete, preferably containing silica dust. The element is fabricated by first making the reinforcement structure whereafter the centre layer consisting of lightweight concrete is being cast. At last the two outer layers are cast preferably by spraying one at a time, using normal or high strength concrete. <IMAGE> |
