Erection of a concrete wall for buildings uses spray concrete placed in the shell mold in layers for hardening by layers to reduce the pressures on the molding shells

摘要

To form walls (1) and slabs, for buildings, the pref. construction material (2) is a spray concrete (3). The wall material (2) is placed in the mold shells (4) in layers (5), to reduce the pressures on the mold shells, with intermediate setting times. The height of the layers (5) depends on the type of mold shell (4) in use, the thickness of the wall (7), the setting speed of the cement and/or the capacity of the concrete injection machine. After casting the wall (1), the mold shell (4) remains as the outer surface (6) of the wall (1).