Various embodiments of the present disclosure provide an additive manufacturing method. The method includes forming a first layer of a first ceramic material and forming a second layer of a second ceramic material. The method further includes contacting the first layer of the first ceramic material, the second layer of the second ceramic material, or both with a saturant. The method further includes heating the first layer of the first ceramic material, the second layer of the second ceramic material, or both to a temperature in a range of from about 50° C. to about 300° C. The method further includes applying pressure to the first layer of the first ceramic material, the second layer of the second ceramic material, or both. The pressure can be in a range of from about 10 kPa to about 800 MPa. The method further includes at least partially dissolving a portion of an external surface of a ceramic particle of the first layer of the first ceramic material, the second layer of the second ceramic material, or both. The method further includes fusing a portion of the dissolved portion of the external surface of the ceramic particle to from a product having a density in a range of from about 65% to about 100% relative to a corresponding fully densified product and optionally containing no organic binder.

The present disclosure relates to the manufacture of ceramic products by aqueous gelcasting. Exemplary ceramic products include sanitary ware, such as toilets and sinks. The process includes a slurrying step, a mixing step, a molding step involving aqueous gelcasting, a drying step, a glazing step, and a firing step.

The present disclosure relates to the manufacture of ceramic products by aqueous gelcasting. Exemplary ceramic products include sanitary ware, such as toilets and sinks. The process includes a slurrying step, a mixing step, a molding step involving aqueous gelcasting, a drying step, a glazing step, and a firing step.

The present description relates to a method of producing a wet-cast slag-based concrete product particularly where the wet-cast slag-based concrete product is partially or completely set inside a mould, pre-conditioned outside of the mould and then cured with carbon dioxide in a curing chamber. The wet-cast slag-based concrete product is optionally reinforced.

A mold frame for the production of molded pieces, comprising at least one mold cavity, the at least one mold cavity being defined by a plurality of mold walls, wherein at least one mold wall of the mold cavity is a mold wall that is displaceably attached to the mold frame, and comprising at least one heating element for heating at least a part of the mold frame.

The present disclosure relates to the manufacture of ceramic products by aqueous gelcasting. Exemplary ceramic products include sanitary ware, such as toilets and sinks. The process includes a slurrying step, a mixing step, a molding step involving aqueous gelcasting, a drying step, a glazing step, and a firing step.

The present disclosure relates to the manufacture of ceramic products by aqueous gelcasting. Exemplary ceramic products include sanitary ware, such as toilets and sinks. The process includes a slurrying step, a mixing step, a molding step involving aqueous gelcasting, a drying step, a glazing step, and a firing step.

Described herein is a process for the production of moldings made of porous material impregnated with polysulfide, the process including the following steps:

(a) insertion of the porous material into a mold;

(b) introduction of liquid polysulfide into the mold at a flow rate within the porous material in the range from 0.5 to 200 cm/s;

(c) cooling of the polysulfide to a temperature below the melting point of the polysulfide; and

(d) removal of the porous material impregnated with the polysulfide.

A method for producing a hardened product of a hydraulic composition, includes mixing water, a hydraulic powder, a dispersant composition, and an aggregate to prepare a hydraulic composition, filling the hydraulic composition into a mold, and steam curing, in the mold, the hydraulic composition filled into the mold. The dispersant composition includes (A) a formaldehyde naphthaienesulfonate condensate or a salt thereof, (B) a compound having an alkylenoxy group, and optionally (C) a polycarboxylic acid-based copolymer, in particular proportions.

A method for producing a hardened product of a hydraulic composition, includes mixing water, a hydraulic powder, a dispersant composition, and an aggregate to prepare a hydraulic composition, filling the hydraulic composition into a mold, and steam curing, in the mold, the hydraulic composition filled into the mold. The dispersant composition includes (A) a formaldehyde naphthaienesulfonate condensate or a salt thereof, (B) a compound having an alkylenoxy group, and optionally (C) a polycarboxylic acid-based copolymer, in particular proportions.