Structures including a curved corrugated wall fabricated from a plurality of layers formed of one or more shaped strips and methods of forming the structures are described. A shaped strip used in the fabrication includes a variable profile across the width of the strip with a first edge of a strip defining a series of cell profiles of a first geometric shape and a second, opposite edge of the strip defining a series of cell profiles of a second, different geometric shape, with each cell transitioning from the first profile to the second profile across the width of the strip. The geometry of the cell profiles at either end of each cell can be designed with respect to one another to allow for radial orientation of the strip about an axis with little or no deformation or stress on the strip edges.

The invention relates to a substantially cuboid construction element (101, 102) made of plastic for use as a construction material. The construction element (101, 102) comprises four side surfaces (21, 22, 23, 24) which are vertically oriented when the construction element (101, 102) is in an installation position (11). The side surfaces (21, 22, 23, 24) each have at least one receiving structure (3). The upper side (4) of the construction element (101, 102), in the installation position (11), has at least one male connecting element or one female connecting element, and a lower side (5) of the construction element has at least the other male connecting element (6) or female connecting element (7). The male connecting element (6) and female connecting element (7) are shaped so as to be complementary to one another.

The invention relates to a substantially cuboid construction element (101, 102) made of plastic for use as a construction material. The construction element (101, 102) comprises four side surfaces (21, 22, 23, 24) which are vertically oriented when the construction element (101, 102) is in an installation position (11). The side surfaces (21, 22, 23, 24) each have at least one receiving structure (3). The upper side (4) of the construction element (101, 102), in the installation position (11), has at least one male connecting element or one female connecting element, and a lower side (5) of the construction element has at least the other male connecting element (6) or female connecting element (7). The male connecting element (6) and female connecting element (7) are shaped so as to be complementary to one another.