Abstract: The invention relates to a print head (10) for a 3D printer (1), comprising a feed zone (11) with a feed (12) for feedstock (20) with variable viscosity, a melting zone (14) comprising a heating element (15) and an outlet opening (16) for the liquid phase (22) of said feedstock (20), as well as a conveyor device (30) for conveying the feedstock (20) from the feed zone (11) into the melting zone (14), said conveyor device (30) comprising a plunger (31) that can be inserted into said feed zone (11).

Abstract: The present invention relates to a three-dimensional (3D) printing process for the (layer-by-layer) production of at least one at least three-layer concrete-comprising segment (subregion) of a three-dimensional (3D) object based on concrete. In the process, a first concrete layer is firstly produced by extrusion of fresh concrete. Subsequently, a first adhesive layer is applied on top of the upward-facing side of the first concrete layer, after which a second concrete layer is applied to the upward-facing side of the first adhesive layer. Further adhesive and concrete layers can optionally be applied in succession, with the corresponding concrete layers and adhesive layers in the respective segment being arranged on top of one another in alternating order and the uppermost layer and the lowermost layer of the respective concrete-comprising segment being in each case formed by a concrete layer.

Abstract: The invention relates to a print head (10) for a 3D printer (1), comprising a feed zone (11) with a feed (12) for feedstock (20) with variable viscosity, a melting zone (14) comprising a heating element (15) and an outlet opening (16) for the liquid phase (22) of said feedstock (20), as well as a conveyor device (30) for conveying the feedstock (20) from the feed zone (11) into the melting zone (14), said conveyor device (30) comprising a plunger (31) that can be inserted into said feed zone (11).

Abstract: The present invention concerns a method of detection for an electronic apparatus comprising a case containing an electronic module powered with electrical energy by a means of storing electrical energy, said electronic module including a calculation unit connected to an accelerator sensor and to a memory unit, said electronic module also being connected to a display means so as to display information linked to some data of said accelerator sensor.

Abstract: The present invention concerns a method of detection for an electronic apparatus comprising a case containing an electronic module powered with electrical energy by a means of storing electrical energy, said electronic module including a calculation unit connected to an accelerator sensor and to a memory unit, said electronic module also being connected to a display means so as to display information linked to some data of said accelerator sensor.

Abstract: The invention relates to polymer-modified cement-containing building material dry mixes which contain a redispersible polymer powder, water retention agents based on polysaccharide structures, a calcium-containing setting accelerator and a superabsorbent copolymer.

Abstract: The invention relates to polymer-modified cement-containing building material dry mixes which contain a redispersible polymer powder, water retention agents based on polysaccharide structures, a calcium-containing setting accelerator and a superabsorbent copolymer.