| 摘要 |
The present invention relates to a method of manufacturing shell-shaped constructions, preferably of concrete, such as houses, ships' hulls, etc. According to the invention two flexible sheaths are arranged, an upper sheath outside a lower sheath, with a space (3) between them (1, 4) into which powder or particle-shaped material and binder are filled. Both sheaths (1, 4) are attached to a support surface or to the ground (2), after which pressure medium such as air is blown in between the support surface/ground (2) and the lower sheath/membrane (1), so that the sheath/membrane construction is inflated to the desired shape, after which the space (3) between the sheaths/membranes is evacuated with the aid of a vacuum pump (6), and the powder/particles in this layer are allowed to set so that a rigid layer is obtained where communication between its particles is retained. |
