A ceramic fiber processing apparatus and method for processing ceramic fibers for the manufacture of ceramic matrix composites (CMCs) is provided. The apparatus includes a frame including a plurality of unidirectional ceramic fibers wound thereabout and extending across a void therein the frame to define a first planar array of ceramic fibers and a second planar array of ceramic fibers. During use, the frame is disposed in the ceramic fiber processing apparatus in a manner to enable gripping of the first planar array of ceramic fibers with a first gripper assembly and gripping of the second planar array of ceramic fibers with a second gripper assembly. A cutting mechanism provides cutting of the plurality of unidirectional ceramic fibers to separate the first planar array of ceramic fibers and the second planar array of ceramic fibers from one another.

Method and apparatus for casting prefabricated concrete products with a substantially horizontal slipform casting process, where the concrete mass is fed in at least one feeding stage to a slipform casting mold compacting and defining the product to be cast, wherein at least one part is embedded in the concrete mass after the at least one concrete mass feeding stage and before the final compaction of the upper surface of the product to be cast.

A concrete mat apparatus, includes a plurality of elongated concrete members, each member being aligned with and next to another concrete member. Each of the concrete members has an upper generally flat surface, a lower generally flat surface, and a plurality of inclined surfaces that each extend away from an upper or lower surface. Reinforcement extends from a first end portion of each concrete member to a second end portion thereof, the reinforcement including a plurality of longitudinally extending reinforcement bars and a plurality of encircling tie bars at spaced apart intervals. Cabling connects each of the elongated concrete members to another of the elongated concrete members. The upper inclined surfaces of one of the elongated concrete members forms a plane with the lower inclined surface of an adjacent elongated concrete member. A plurality of loops are provided along opposed edges of the mat.

Disclosed is a sand aerated concrete panel pre-embedded with a wire box and a wire conduit and its preparation method. The concrete panel includes a sand aerated concrete panel, a steel bar mesh cage, a wire box and a wire conduit. The steel bar mesh cage includes a plurality of longitudinal main steel bars, a plurality of transverse auxiliary steel bars and a plurality of connecting iron pieces; the wire box and the wire conduit are fixed on the steel bar mesh cage; and the steel bar mesh cage, the wire box and the wire conduit are poured in the sand aerated concrete panel. The disclosure solves the problems of complicated procedures, high cost, environmental pollution caused by dust and noise in the prior art, avoids the potential quality hazards of the panels and wall structures caused by on-site slotting, reduces labor force, intensity and cost.

The present invention relates to a method for casting building material to form a construction element using a computer-controlled apparatus. The method comprises the steps of: moving the material deposition head and selectively depositing material, to fabricate a formwork; pouring building material in contact with at least a portion of the formwork; at least partially curing the building material, thereby forming the construction element; and removing at least a portion of the formwork from the construction element.

A concrete mat apparatus, includes a plurality of elongated concrete members, each member being aligned with and next to another concrete member. Each of the concrete members has an upper generally flat surface, a lower generally flat surface, and a plurality of inclined surfaces that each extend away from an upper or lower surface. Reinforcement extends from a first end portion of each concrete member to a second end portion thereof, the reinforcement including a plurality of longitudinally extending reinforcement bars and a plurality of encircling tie bars at spaced apart intervals. Cabling connects each of the elongated concrete members to another of the elongated concrete members. The combination of elongated concrete members has a width and a length that is at least twice as long as the width. The upper inclined surfaces of one of the elongated concrete members forms a plane with the lower inclined surface of an adjacent elongated concrete member. A plurality of loops are provided along opposed edges of the mat, each loop formed by a portion of the cabling. The loops can be spaced between about one and three feet (30.5 and 91.4 cm) apart.

A regenerated block concrete prefabricated laminated slab includes a new concrete, waste concrete blocks, and a steel bar mesh on a bottom of the slab. The waste concrete blocks can protrude out from a surface part of the new concrete, but a protruding height is no more than 25 mm, and the protruding height is limited by an assembling die. The assembling die comprises a casting die and a height-limiting cover plate, a side die of the casting die is reserved with a steel bar positioning hole, and a vertical position of the height-limiting cover plate is positioned at four corners of the casting die through screws, limiting nuts and gaskets of different thicknesses. A manufacturing process of the regenerated block concrete prefabricated laminated slab is also provided.

The present disclosure provides a method and a manufacturing system for preparing adaptive steel-fiber-reinforced precast concrete members, the manufacturing system comprising: a discharging control mechanism, a mixing mechanism, a direction adjustment mechanism for steel fibers, and a 3D printing mechanism, all of which are set in sequence and connected to each other, and both the discharging control mechanism and the direction adjustment mechanism are connected to a same locator; the method comprising: S1: performing a microscopic numerical simulation, obtaining a distribution diagram, thereby constructing a model of the distribution of direction and number of the steel fibers; S2: calculating the mixing ratio, preparing a pre-mixed mortar, and weighing the steel fibers for subsequent use; S3: planning the printing path and comprehensively analyzing the printing path and the model; S4: sending information at each part of the printing path and controlling the distribution at each part of the printing path.

Methods and ceramic matrix composite articles formed thereby, as well as systems for making such ceramic matrix composite articles and carrying out such methods are disclosed herein. The methods include preparing a ceramic matrix composite by steps including (a) providing reinforcing fiber, such as carbon fiber, for impregnation; (b) heat treating the reinforcing fiber; (c) impregnating the heat treated reinforcing fiber with a composition comprising a ceramic forming polymer to form a fiber reinforced, ceramic forming polymer pre-preg; and (d) heat molding the fiber reinforced, ceramic forming polymer pre-preg to form a molded ceramic matrix composite article.

A ceramic fiber processing apparatus and method for processing ceramic fibers for the manufacture of ceramic matrix composites (CMCs) is provided. The apparatus includes a frame including a plurality of unidirectional ceramic fibers wound thereabout and extending across a void therein the frame to define a first planar array of ceramic fibers and a second planar array of ceramic fibers. During use, the frame is disposed in the ceramic fiber processing apparatus in a manner to enable gripping of the first planar array of ceramic fibers with a first gripper assembly and gripping of the second planar array of ceramic fibers with a second gripper assembly. A cutting mechanism provides cutting of the plurality of unidirectional ceramic fibers to separate the first planar array of ceramic fibers and the second planar array of ceramic fibers from one another.