Abstract: The invention relates to a concrete shaping insert, which is formed to be arranged in a formwork mold before a concreting process, comprising a first and second fixing element, between which at least one displacement body is arranged. The concrete shaping insert is characterized in that, the displacement body has an interstitial tube and that the first and second fixing element are connected to one another with at least one connecting component, which proceed through the interstitial tube.

Abstract: A concrete ceiling has a lower reinforcing mesh and an upper reinforcing mesh between which a plurality of displacement bodies are arranged, wherein the lower and upper reinforcing mesh and the displacement bodies are embedded in concrete and each displacement body at least partially surrounds at least one channel which establishes a connection between the concrete at the lower reinforcing mesh and the concrete at the upper reinforcing mesh.

Abstract: A concrete ceiling has a lower reinforcing mesh and an upper reinforcing mesh between which a plurality of displacement bodies are arranged, wherein the lower and upper reinforcing mesh and the displacement bodies are embedded in concrete and each displacement body at least partially surrounds at least one channel which establishes a connection between the concrete at the lower reinforcing mesh and the concrete at the upper reinforcing mesh.

Abstract: Module (1) for the production of concrete elements, particularly of concrete semi-finished products or of relatively “thin” in-situ concrete surfaces. The modules includes a plurality of displacement bodies (5, 5?, 5?, 5??) able to be inserted and arranged adjacent to each other in a longitudinal direction. The plurality of displacement bodies (5, 5?, 5?, 5??) is arranged respectively undetachably in a latticework (2) of bars (3, 3?, 4, 4?, 4?). The displacement body (5, 5?, 5?, 5??) is formed as a substantially oblate rotation ellipsoid with two at least slightly flattened pole sides (7, 7?, 8, 8?).

Abstract: Displacers are used in production of concrete surfaces. The displacers are embodied, for example, as plastic balls or plastic shells and are locked in lattices that are open on one side, preferably downwardly. The modules can then be pressed into a first or second concrete layer that can already contain a first reinforcement mesh. The thus produced semi-finished product can then be covered with a concrete mass during the subsequent finishing process.

Abstract: Module (1) for the production of concrete elements, particularly of concrete semi-finished products or of relatively “thin” in-situ concrete surfaces, with a plurality of displacement bodies (5, 5?, 5?, 5??) able to be inserted arranged adjacent to each other in a longitudinal direction, in which the plurality of displacement bodies (5, 5?, 5?, 5??) arranged adjacent to each other is arranged respectively undetachably in a latticework (2) of bars (3, 3?, 4, 4?, 4?), in which the displacement body (5, 5?, 5?, 5??) is formed as a substantially oblate rotation ellipsoid with two at least slightly flattened pole sides (7, 7?, 8, 8?).

Abstract: Displacers are used in production of concrete surfaces. The displacers are embodied, for example, as plastic balls or plastic shells and are locked in lattices that are open on one side, preferably downwardly. The modules can then be pressed into a first or second concrete layer that can already contain a first reinforcement mesh. The thus produced semi-finished product can then be covered with a concrete mass during the subsequent finishing process.