Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
SELF-REINFORCED CEMENTITIOUS COMPOSITE COMPOSITIONS FOR BUILDING-SCALE THREE DIMENSIONAL (3D) PRINTING
Printable cementitious compositions for additive manufacturing are provided, that have a fresh state and a hardened state. In fresh state, the composition is flowable and extrudable in the additive manufacturing process. In the hardened state, the composition exhibits strain hardening. In one variation, the strain hardening is represented by a uniaxial tensile strength of ≥about 2.5 MPa, a tensile strain capacity of ≥about 1%, and a compressive strength at 100 hours of ≥about 20 MPa. In other variations, the composition includes Portland cement, a calcium aluminate cement, a fine aggregate, water, a high range water reducing agent (HRWRA), and a polymeric fiber, as well as one or more optional components selected from: fly ash, silica flour, microsilica, attapulgite nanoclay, and/or hydroxypropylmethyl cellulose (HPMC). Methods of additive manufacturing with such compositions are also provided.
SELF-REINFORCED CEMENTITIOUS COMPOSITE COMPOSITIONS FOR BUILDING-SCALE THREE DIMENSIONAL (3D) PRINTING
Printable cementitious compositions for additive manufacturing are provided, that have a fresh state and a hardened state. In fresh state, the composition is flowable and extrudable in the additive manufacturing process. In the hardened state, the composition exhibits strain hardening. In one variation, the strain hardening is represented by a uniaxial tensile strength of ≥about 2.5 MPa, a tensile strain capacity of ≥about 1%, and a compressive strength at 100 hours of ≥about 20 MPa. In other variations, the composition includes Portland cement, a calcium aluminate cement, a fine aggregate, water, a high range water reducing agent (HRWRA), and a polymeric fiber, as well as one or more optional components selected from: fly ash, silica flour, microsilica, attapulgite nanoclay, and/or hydroxypropylmethyl cellulose (HPMC). Methods of additive manufacturing with such compositions are also provided.
SELF-REINFORCED CEMENTITIOUS COMPOSITE COMPOSITIONS FOR BUILDING-SCALE THREE DIMENSIONAL (3D) PRINTING
SELBSTVERSTÄRKTE ZEMENTKOMPOSITE FÜR DREIDIMENSIONALES (3D) DRUCKEN IM BAUMASSSTAB
COMPOSITIONS COMPOSITES CIMENTAIRES AUTO-RENFORCÉES POUR IMPRESSION EN TROIS DIMENSIONS (3D) À L'ÉCHELLE D'UN BÂTIMENT
SOLTAN DANIEL G (Autor:in) / LI VICTOR C (Autor:in)
21.07.2021
Patent
Elektronische Ressource
Englisch
IPC:
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
B33Y
ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
,
Additive (generative) Fertigung, d. h. die Herstellung von dreidimensionalen [3D] Bauteilen durch additive Abscheidung, additive Agglomeration oder additive Schichtung, z. B. durch 3D- Drucken, Stereolithografie oder selektives Lasersintern
/
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2020
| Europäisches Patentamt | 2019
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2020
Three-dimensional printing of cementitious compositions
| Europäisches Patentamt | 2024