EP 3927915 A1 20211229 - 3D PRINTING METHOD FOR PRODUCING CONCRETE-CONTAINING SEGMENTS OF A 3D OBJECT
Title (en)
3D PRINTING METHOD FOR PRODUCING CONCRETE-CONTAINING SEGMENTS OF A 3D OBJECT
Title (de)
3D-DRUCKVERFAHREN ZUR HERSTELLUNG VON BETONHALTIGEN SEGMENTEN EINES 3D-GEGENSTANDES
Title (fr)
PROCÉDÉ DE FABRICATION ADDITIVE POUR LA FABRICATION DE SEGMENTS CONTENANT DU BÉTON D'UN OBJET TRIDIMENSIONNEL
Publication
Application
Priority
- EP 19158121 A 20190219
- EP 2020053174 W 20200207
Abstract (en)
[origin: WO2020169369A1] The present invention relates to a three-dimensional (3D) printing method for the (layer-by-layer) production of at least one segment (portion) of a three-dimensional (3D) concrete-based object, the at least one segment having at least three layers and containing concrete. In the method, a first concrete layer is produced to start with by extruding fresh concrete. Subsequently, a first adhesive layer is applied to the side of the first concrete layer facing upward, and then, in turn, a second concrete layer is applied to the side of the first adhesive layer facing upward. Further adhesive and concrete layers can be successively applied as necessary, wherein the corresponding concrete layers and adhesive layers in each segment are arranged in an alternating manner one atop the other, and the top layer and the bottom layer of each concrete-containing segment are formed from a concrete layer. The present invention also relates to a segment of a 3D object as such, the segment having at least three layers and containing concrete and being produced by the method according to the invention. The invention also relates to the use of at least one segment as such, having at least three layers and containing concrete, to produce a 3D object or for integration in a 3D object. The present invention also relates to a three-dimensional (3D) object as such, containing at least one segment which has at least three layers and contains concrete and can be produced by the method according to the invention.
IPC 8 full level
E04G 21/04 (2006.01); B28B 1/00 (2006.01); B29C 64/106 (2017.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); C04B 40/00 (2006.01); C04B 111/00 (2006.01)
CPC (source: EP KR US)
B28B 1/001 (2013.01 - EP KR US); B28B 3/20 (2013.01 - EP KR); B29C 64/106 (2017.08 - EP); B33Y 10/00 (2014.12 - EP KR US); B33Y 30/00 (2014.12 - KR); B33Y 70/00 (2014.12 - KR); B33Y 80/00 (2014.12 - US); E04G 21/0463 (2013.01 - EP); B33Y 70/00 (2014.12 - EP); C04B 2111/00181 (2013.01 - EP KR)
C-Set (source: EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2020169369 A1 20200827; CN 113490781 A 20211008; CN 113490781 B 20240102; EP 3927915 A1 20211229; JP 2022521906 A 20220413; JP 7547354 B2 20240909; KR 20210130721 A 20211101; US 2022152867 A1 20220519
DOCDB simple family (application)
EP 2020053174 W 20200207; CN 202080015138 A 20200207; EP 20703466 A 20200207; JP 2021548683 A 20200207; KR 20217025817 A 20200207; US 202017432013 A 20200207