Device for pressing a non-hardened concrete composition into a desired form includes an upper plate with first cavities running through the upper plate, a moulding plate with one or more second cavities whereby the upper plate is located directly above the moulding plate, a bottom plate located under the moulding plate whereby the bottom plate closes the one or more second cavities on the bottom, whereby the upper plate and the moulding plate can move horizontally in relation to each other between a first position in which the one or more first cavities are directly and exactly above the one or more second cavities and a second position in which the one or more first cavities are not above the one or more second cavities, wherein the thickness of the upper plate and not the thickness of the moulding plate is decisive for the thickness of the final article.

A method of retrofitting an existing apparatus for forming concrete products, where the apparatus comprises an existing component located upstream of a product mold and adapted to deliver treated concrete to the product mold, adapts the existing component to treat fresh concrete to be delivered to the product mold by a new component with treated water infused with a concentration of carbon dioxide nanobubbles. The step of adapting comprises adding to the existing component a water delivery system that is configured to direct the treated water into the fresh concrete, where the water delivery system is provided with one or more liquid manifolds configured to dispense the treated water into the fresh concrete to form treated concrete.

A device for producing concrete blocks, in particular concrete paving slabs, having a mold for filling with a concrete mixture, wherein the mold has at least one mold cavity for receiving the concrete mixture, and wherein the upwardly open mold cavity has walls as lateral boundaries, and wherein the at least one mold cavity can be filled with the concrete mixture by means of a filling device, and wherein the mold with the at least one mold cavity and the filling device are movable relative to one another in a filling axis. The filling axis is oriented obliquely to an axis of symmetry of the at least one mold cavity, with the result that preferably all of the walls of the mold cavity extend neither perpendicularly nor parallel to the filling axis, but at an angle.

The invention is a machine for producing decorative aggregate G-layer on top surfaces of claddings in cooperation with a cladding manufacturing machine. The G-layer production machine may be integrated into the cladding manufacturing machine or a standalone machine. In both options, the machines synchronize the overlaying of the top G-layer with the manufacturing process of the claddings to ensure continuous production of multi-layer claddings with a decorative aggregate layer. The overlaying itself is done under controlled condition to produce homogenous distribution of the aggregates on the top surface of the claddings to provide them an aesthetic look.

The invention relates to a method for powder pressing at least two pressed parts, in particular ceramic powder pressed parts and/or metal powder pressed parts, wherein a first powder (17) for pressing a first pressed part is filled into a first cavity (13) of a die (12) with a first filling level and a second powder (18) for pressing a second pressed part is filled into a second cavity (14) of the die (12) with a second filling level, wherein the first and second filling levels are individually adjusted. Preferably, the first powder is filled via a first filling shoe and the second powder is filled via a second filling shoe, wherein the two filling shoes, at least temporarily, are not moved simultaneously. A powder pressing device is also claimed which is suitable for implementing the aforementioned method.

The invention is a machine for producing decorative aggregate G-layer on top surfaces of claddings in cooperation with a cladding manufacturing machine. The G-layer production machine may be integrated into the cladding manufacturing machine or a standalone machine. In both options, the machines synchronize the overlaying of the top G-layer with the manufacturing process of the claddings to ensure continuous production of multi-layer claddings with a decorative aggregate layer. The overlaying itself is done under controlled condition to produce homogenous distribution of the aggregates on the top surface of the claddings to provide them an aesthetic look.

A device for producing concrete blocks, in particular concrete paving slabs, having a mold for filling with a concrete mixture, wherein the mold has at least one mold cavity for receiving the concrete mixture, and wherein the upwardly open mold cavity has walls as lateral boundaries, and wherein the at least one mold cavity can be filled with the concrete mixture by means of a filling device, and wherein the mold with the at least one mold cavity and the filling device are movable relative to one another in a filling axis. The filling axis is oriented obliquely to an axis of symmetry of the at least one mold cavity, with the result that preferably all of the walls of the mold cavity extend neither perpendicularly nor parallel to the filling axis, but at an angle.

This invention relates to an apparatus and method for producing paver blocks (K) having ornamented, especially veined tread surface. The apparatus comprising a starting table (51); a filling carriage (5) movable back and forth in a first direction (F1) above a molding template (6); and an open chamber (5a) for receiving a base material is provided in the interior space of the carriage (5); a metering trough (1, 2, 3) is connected to a dispensing device (41), and a batch box (4) is arranged movably over the starting table (51). The apparatus is provided with a second starting table (8) movable in a second direction (F2) above the molding template (6), and a second filling carriage (7) is arranged movably along a guide rail (32) over the molding template (6) in the second direction (F2), and a second batch box (9) is provided above the second filling carriage (7).

A multi-zone cementitious product, which includes a base zone made of a first cementitious material composition and forming a portion of the product. At least one facing zone is adjacent to and bonded to the base zone, the facing zone made of a second cementitious material composition and forming at least one exterior face of said product which is visible when the product is installed. A disrupted boundary layer is between the facing zone and the base zone, and includes material from both the facing zone and the base zone. The disrupted boundary layer bonds the facing zone to the base zone. The facing zone has a thickness sufficient to prevent the base zone from being visible when the product is installed.

Device (1) for pressing a non-hardened concrete composition (12) into a desired form, whereby the device comprises an upper plate (4) with one or more first cavities (7) that run through the upper plate (4), a moulding plate (3) with one or more second cavities (9) whereby the upper plate (4) is located directly above the moulding plate (3), a bottom plate (2) located under the moulding plate (3) whereby the bottom plate closes the one or more second cavities (9) on the bottom, whereby the upper plate (4) and the moulding plate (3) can move horizontally in relation to each other between a first position in which the one or more first cavities (7) are directly and exactly above the one or more second cavities (9) and a second position in which the one or more first cavities (7) are not above the one or more second cavities (9), wherein the thickness of the upper plate (4) and not the thickness of the moulding plate (3) is decisive for the thickness of the final article (12,13