A method of preparing a ceramic fabric for use in a ceramic matrix composite includes transforming a ceramic tow from a first tow geometry to a second tow geometry, thereby reducing a first dimension of the ceramic tow and increasing a second dimension of the ceramic tow orthogonal to the first dimension to produce a flattened tow. The method includes weaving or braiding the flattened ceramic tow to form a ceramic fabric.

Beneficial use structures are disclosed that include coal combustion residuals (CCR) mixed with water and a binder to form a structural material, and adapted to be compacted for use in the formation of the beneficial use structure. Various structures having beneficial uses are described, including compressed air storage facilities and a pumped hydroelectric facility, including such a facility adapted for use with a lock system of a waterway.

Beneficial use structures are disclosed that include coal combustion residuals (CCR) mixed with water and a binder to form a structural material, and adapted to be compacted for use in the formation of the beneficial use structure. Various structures having beneficial uses are described, including compressed air storage facilities and a pumped hydroelectric facility, including such a facility adapted for use with a lock system of a waterway.

A roll press machine according to the present disclosure includes a hot press mechanism having a pair of rollers arranged with a gap therebetween and heating mechanisms that heat the pair of rollers to heat and roll a forming material, a material feeding mechanism that feeds the forming material and a conveying mechanism that conveys the forming material fed by the material feeding mechanism to the hot press mechanism, in which each of the pair of rollers in the hot press mechanism has a roller structure including an outermost layer and an intermediate layer inside the outermost layer, and a thermal expansion coefficient of the outermost layer is lower than a thermal expansion coefficient of the intermediate layer.

A device (1) for producing a slab (9) from artificial stone material by means of a double-belt press having a lower belt (2) and an upper belt (3), the double-belt press comprising a charging device (4) for loading a starting material for producing the slab (9) onto the lower belt (2), and the charging device (4) comprising at least one drum (5, 6) that is rotatable about its longitudinal axis (a1, a2).

A sintering-free inorganic ceramic brick-plate and its preparation method are disclosed. The sintering-free inorganic ceramic brick-plate includes following components by mass parts: 25-40 parts of magnesium oxide; 20-35 parts of magnesium chloride; 20-30 parts of fumed silica; 10-20 parts straw powders; 0.1-0.3 parts of graphene powders with a particle size of 2000 meshes; and 0.2-0.4 parts of airgel powders with a particle size of 100 nm. Compared with the prior art, the present invention utilizes a variety of raw natural non-toxic natural mineral raw materials, namely, the graphene powders with the particle size of 2000 meshes and the airgel powders with the particle size of 100 nm for mixing, and then the mixed raw materials can be solidified at room temperature and form sheets, and then the surface of the sheets is processed through printing or spraying glaze, so as to achieve the effect of high-grade tiles and natural marble.

A sintering-free inorganic ceramic brick-plate and its preparation method are disclosed. The sintering-free inorganic ceramic brick-plate includes following components by mass parts: 25-40 parts of magnesium oxide; 20-35 parts of magnesium chloride; 20-30 parts of fumed silica; 10-20 parts straw powders; 0.1-0.3 parts of graphene powders with a particle size of 2000 meshes; and 0.2-0.4 parts of airgel powders with a particle size of 100 nm. Compared with the prior art, the present invention utilizes a variety of raw natural non-toxic natural mineral raw materials, namely, the graphene powders with the particle size of 2000 meshes and the airgel powders with the particle size of 100 nm for mixing, and then the mixed raw materials can be solidified at room temperature and form sheets, and then the surface of the sheets is processed through printing or spraying glaze, so as to achieve the effect of high-grade tiles and natural marble.

Beneficial use structures are disclosed that include coal combustion residuals (CCR) mixed with water and a binder to form a structural material, and adapted to be compacted for use in the formation of the beneficial use structure. Various structures having beneficial uses are described, including compressed air storage facilities and a pumped hydroelectric facility, including such a facility adapted for use with a lock system of a waterway.

Beneficial use structures are disclosed that include coal combustion residuals (CCR) mixed with water and a binder to form a structural material, and adapted to be compacted for use in the formation of the beneficial use structure. Various structures having beneficial uses are described, including compressed air storage facilities and a pumped hydroelectric facility, including such a facility adapted for use with a lock system of a waterway.

Beneficial use structures are disclosed that include coal combustion residuals (CCR) mixed with water and a binder to form a structural material and adapted to be compacted for use in the formation of the beneficial use structure. Various structures having beneficial uses described, including survival bunkers, composting pits, mine reclamation encapsulation and carbon sequestration facilities, water storage facilities, compressed air storage facilities, carbon sequestration/mineral carbonation facilities and a pumped hydroelectric facility adapted for use with a lock system of a waterway.