A machine for and method of manufacturing concrete U-wall type construction blocks by molding each concrete u-wall construction block from concrete poured about a block cage made from reinforcing material while said block cage is loaded within the machine. The method involves providing a system of molding jacket panels, including a core molding assembly having a pair of inside stem jacket panels that are adjustably supportable in a substantially parallel manner during a molding process, and arranged is such a manner that the front wall portion is molded in downwardly facing direction toward a horizontal support surface and completely enclosed in one or more molding jacket panels. Before block molding operations, the thickness of the front wall portion of the U-wall construction block is set by determining the thickness of a front wall surface liner and installing the front wall surface forming liner within the system of molding jacket panels.

The disclosure relates to formwork for producing a concrete element, in particular a wall element or ceiling element, having an opening, in particular a window opening or door opening, the formwork comprising: a formwork panel; opening formwork, which has a frame element for delimiting a portion of the opening, a support bracket for supporting the frame element, and a mounting element for mounting the support bracket; a formwork-stripping device for transferring the opening formwork from a formwork position for the formation of the opening into a formwork-stripping position for the release of the concrete element, wherein the formwork-stripping device has a sliding and tilting mechanism for sliding the frame element in a direction parallel to the formwork panel and for tilting the frame element about a pivot axis running substantially parallel to the formwork panel.

A base assembly with a pair of doors slidingly attached to the base assembly for moving between an open position and a closed position. An inner core comprising a first end and a throat end with the throat end having a larger diameter than the first end is positioned downward on top of the base assembly with the first end in an upright position. A pallet is positioned around the throat end of the inner core. When the pair of doors are in the closed position, a cavity is formed that is open from the top of the pair of doors and is located between the inner core and the pair of doors and corresponds to the shape of the concrete product with the flared end. The foregoing assembly allows for wet casting concrete products in a vertically upright position.

A mold apparatus comprising: a mold main body which can be coupled to at least one mold portion for shaping at least portions of a cast component, at least two magnet devices which each can be transferred between an interaction position in which they are designed to be magnetically operatively connected to a mold support and to fix the position of the main mold body on the mold support, and a release position in which the magnetic operative connection is reduced and the mold main body can be positioned with respect to the mold support. The mold apparatus also comprises an activation device by which the at least two magnet devices can be transferred at least from the interaction position into the release position at least temporarily with a time offset.