A wall assembly for a building structure, uses (i) an inner shell cast in a first mold to define a first panel of concrete having a plurality of stiffener members embedded in the concrete so as to be at least partly exposed at the inner side of the panel, and (ii) an outer shell cast in a second mold to define a second panel of concrete having a plurality of stiffener members embedded in the concrete so as to be at least partly exposed at the inner side of the panel. The inner shell and the outer shell are mechanically coupled after casting to define a mold cavity between the inner sides of the panels. Field concrete can be cast into the mold cavity between the inner and outer shells once the wall assembly is mounted on site into position within the building structure.

A bonded abrasive article includes elongate shaped abrasive particles. The elongate shaped abrasive particles comprise an elongate shaped ceramic body having opposed first and second ends joined to each other by at least two longitudinal sidewalls. At least one of the at least two longitudinal sidewalls is concave along its length. At least one of the first and second ends is a fractured surface.

A bonded abrasive article includes elongate shaped abrasive particles. The elongate shaped abrasive particles comprise an elongate shaped ceramic body having opposed first and second ends joined to each other by at least two longitudinal sidewalls. At least one of the at least two longitudinal sidewalls is concave along its length. At least one of the first and second ends is a fractured surface.

A prefabricated prestressed thermal-insulated exterior wall board and a light weight composite thermal-insulated exterior wall board include a thermal-insulated core board, a reinforcement mesh on both sides of the thermal-insulated core board, and a concrete layer cast on the reinforcement mesh, and the thermal-insulated core board includes a plurality of throughout-length thermal-insulated core board ribs, and the concrete layer includes a plurality of concrete ribs interlaced with and matching the thermal-insulated core board ribs, a shear-resistant connection members connected with the reinforcement mesh is inserted between the adjacent thermal-insulated core board ribs, and prestressed tendons are disposed in grooves formed between the adjacent thermal-insulated core board ribs and grooves formed between the adjacent concrete ribs in the prefabricated prestressed thermal-insulated exterior wall board.

The problem of wet-cast concrete products getting stuck or being uncontrollably ejected from a flexible mold during demolding is solved by moving the flexible mold through a passage, defined by both a mold-receiving surface and a rotatable mold-support distanced therefrom, while moving an edge of the flexible mold along an unsmooth path that includes at least one sharp point.

The problem of wet-cast concrete products getting stuck in a flexible mold during demolding is solved, prior to demolding the wet-cast concrete products, by removing a vacuum on the flexible mold by moving at least one side edge of the flexible mold away from a part of the flexible mold that is adjacent to the at least one side edge in a direction opposite the open side of the flexible mold.

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.

A concrete mold including a mold frame with a frame body and at least two rows of teeth formed on the frame body lying opposite one another and in each case facing a mold insert. The mold insert has an insert body and at least two rows of teeth arranged on the insert body lying opposite one another and in each case facing the mold frame. Recesses are in each case formed on the insert body between teeth of its rows of teeth, in which recesses teeth of the rows of teeth of the frame body in each case engage in the assembled state of the mold. Recesses are in each case formed on the frame body between the teeth of its rows of teeth, in which recesses the teeth of the rows of teeth of the insert body in each case engage in the assembled state of the mold.

A concrete mold including a mold frame with a frame body and at least two rows of teeth formed on the frame body lying opposite one another and in each case facing a mold insert. The mold insert has an insert body and at least two rows of teeth arranged on the insert body lying opposite one another and in each case facing the mold frame. Recesses are in each case formed on the insert body between teeth of its rows of teeth, in which recesses teeth of the rows of teeth of the frame body in each case engage in the assembled state of the mold. Recesses are in each case formed on the frame body between the teeth of its rows of teeth, in which recesses the teeth of the rows of teeth of the insert body in each case engage in the assembled state of the mold.

This invention is an additively manufactured wall panel using computer aided design (CAD) and computer aided manufacturing (CAM) to design and manufacture multi-colored and multi-layered wall panels. This results in a variety of highly attractive, multi-colored wall panel faces ranging from brick, colored grout lines and multi-colored stones to multi-colored geometric designs. The design and manufacturing process greatly reduces the amount of precast cementitious materials by efficiently using higher quality materials. This reduces cost and weight while simultaneously producing a much more comprehensive, multi-functional wall panel complete with an interior frame, exterior insulation and an air, vapor and moisture barriers.