Material system suitable for a 3D printing method or 3D printing method material system comprising or consisting of a particulate material, a printing liquid, and an ester activator as well as 3D printing processes that use such a material system and molding parts produced by means of such material systems and 3D printing processes.

The present invention relates to a process for preparing a particle-stabilized inorganic foam based on geopolymers, to a particle-stabilized inorganic foam based on geopolymers, to a cellular material obtainable by hardening and optionally drying the particle-stabilized inorganic foam based on geopolymers, and to a composition for preparing an inorganic foam formulation for providing a particle-stabilized inorganic foam based on geopolymers.

Thermoset ceramic compositions and a method of preparation of such compositions. The compositions are advanced organic/inorganic hybrid composite polymer ceramic alloys. The material combines strength, hardness and high temperature performance of technical ceramics with the strength, ductility, thermal shock resistance, density, and easy processing of the polymer. Consisting of a branched backbone of silicon, alumina, and carbon, the material undergoes sintering at 7 to 300 centigrade for 2 to 94 hours from water at a pH between 0 to 14, humidity of 0 to 100%, with or without vaporous solvents.

Thermoset ceramic compositions and a method of preparation of such compositions. The compositions are advanced organic/inorganic hybrid composite polymer ceramic alloys. The material combines strength, hardness and high temperature performance of technical ceramics with the strength, ductility, thermal shock resistance, density, and easy processing of the polymer. Consisting of a branched backbone of silicon, alumina, and carbon, the material undergoes sintering at 7 to 300 centigrade for 2 to 94 hours from water at a pH between 0 to 14, humidity of 0 to 100%, with or without vaporous solvents.

A method for making geopolymer cementitious binder compositions for cementitious products such as concrete, precast construction elements and panels, mortar and repair materials, and the like is disclosed. The geopolymer cementitious compositions of some embodiments are made by mixing a synergistic mixture of thermally activated aluminosilicate mineral, calcium aluminate cement, a calcium sulfate and a chemical activator with water.

A method for making geopolymer cementitious binder compositions for cementitious products such as concrete, precast construction elements and panels, mortar and repair materials, and the like is disclosed. The geopolymer cementitious compositions of some embodiments are made by mixing a synergistic mixture of thermally activated aluminosilicate mineral, calcium aluminate cement, a calcium sulfate and a chemical activator with water.

The object of the invention is a construction material containing water glass, fumed silica, ground sand and post-industrial waste material, characterised in that the post-industrial waste material constitutes dried flotation tailings with a content of 19.67-57.24% of SiO.sub.2; 11.87-24.85% of CaO; 4.23-6.19% of MgO and 2.35-4.17% of Al.sub.2O.sub.3, and also the object of the invention is a method for preparing the construction material.

The present disclosure relates to an anti-breaking element comprising a geopolymer, a process for preparing an anti-breaking element, the process comprising: a) providing the skeleton of an anti-breaking element; b) preparing a geopolymer formulation; c) casting the geopolymer formulation of step b) into the skeleton of the anti-breaking element of step a); and d) optionally, removing the skeleton. The present disclosure further relates to the use of a geopolymer as part of an anti-breaking element.

The present disclosure relates to an anti-breaking element comprising a geopolymer, a process for preparing an anti-breaking element, the process comprising: a) providing the skeleton of an anti-breaking element; b) preparing a geopolymer formulation; c) casting the geopolymer formulation of step b) into the skeleton of the anti-breaking element of step a); and d) optionally, removing the skeleton. The present disclosure further relates to the use of a geopolymer as part of an anti-breaking element.

A method of manufacturing molds and cores suitable for producing fiber composite bodies or cast parts of metal or plastic from a mold base material and a multicomponent binder by 3D printing includes pretreating the particulate mold base material with at least one silicon-organic compound having a polar hydrophilic end and a nonpolar hydrophobic end, forming a layer of the pretreated particulate mold base material, and applying the binder or at least one component of the binder in liquid form to the layer, wherein b. and c. are repeated.