A preparing process for pressing particulate aggregates into a slab and a shaping apparatus are described. The preparing process includes: mixing particulate aggregates of different sizes and a liquid material as per a preset proportion to obtain a mixture; spreading the mixture flatly in a preset thickness onto a conveyor belt or into a mould frame; vacuumizing the mixture; shaping, wherein a pressing plate is disposed covering the mixture during the shaping procedure to constantly apply a downward pressure against the mixture; a ram disposed over the pressing plate continuously smashes the pressing plate, wherein during ram smashing, the pressure created by the pressing plate forms a continuous holding force to the mixture, the smashing force created from up-down motion of the ram is transferred to the mixture via the pressing plate.

The changes to the abstract are shown below:

A preparing process for pressing particulate aggregates into a slab and a shaping apparatus are described. The preparing process includes: mixing particulate aggregates of different sizes and a liquid material as per a preset proportion to obtain a mixture; spreading the mixture flatly in a preset thickness onto a conveyor belt or into a mould frame; vacuumizing the mixture; shaping, wherein a pressing plate is disposed covering the mixture during the shaping procedure to constantly apply a downward pressure against the mixture; a ram disposed over the pressing plate continuously smashes the pressing plate, wherein during ram smashing, the pressure created by the pressing plate forms a continuous holding force to the mixture, the smashing force created from up-down motion of the ram is transferred to the mixture via the pressing plate.

In a device for producing concrete slabs, a mold lower part is inserted into a frame secured via retaining braces to receiving areas of guiding columns oriented along an insertion direction and having, above the mold lower part, a structural loading device movable along the guiding columns and having, on the side facing the mold lower part, a mold upper part with one or more pressure plates inserted or insertable into one or more recesses of the mold lower part, the structural loading device being connected to the pressure plates via pressure rams. An upper guide element arranged between the structural loading device and the pressure rams interacts with a lower guide element arranged on the retaining brace such that, during the production of concrete slabs, the structural loading device is constantly guided relative to the mold lower part on a plane perpendicular to the insertion direction.

This document describes systems and processes for forming synthetic molded slabs, which may be suitable for use in living or working spaces (e.g., along a countertop, table, floor, or the like).

An apparatus for vacuum vibro-compression of mixes arranged on a support comprises a press (12) provided with a press ram (18) having vibratory devices (22), and a pressing surface (16). The press (12) comprises a vacuum bell (24). The apparatus is characterized in that it comprises an entry chamber (44) in the region of the inlet opening (36) of the bell (24) having a first opening (48) which can be controllably closed and opened with a first gate (50) adapted to prevent fluid communication between the outside and inside of the entry chamber (44) and a second gate (52) able to be controllably opened and closed, in the region of the inlet opening (36) of the bell (24), and adapted to prevent fluid communication between entry chamber (36) and the inside of the bell (24) or to allow the passage of the support with the mix from the entry chamber (36) to the inside of the bell (24). The apparatus also comprises an exit chamber (46) in the region of the outlet opening (38), having a third gate (54) provided in the region of the outlet opening (38), able to be controllably closed and opened and adapted to prevent fluid communication between the inside of the bell (24) and the inside of the exit chamber (46) or to allow the passage of the support with the compacted slab from inside the bell (24) to the exit chamber (46), and a second opening (56) which can be controllably closed and opened with a fourth gate (58) which is adapted to prevent fluid communication between the inside of the exit chamber and the outside. A method for vacuum vibro-compression of mixes contained inside a mould, comprising the steps of: inserting a support with the mix inside the entry chamber (44) and closing the first gate (50); generating a given vacuum value inside the entry chamber (44) with the first gate (50) and the second gate (52) closed; opening the second gate (52) and inserting the support inside the bell (24) where a given vacuum value is already present; closing the second gate (52) and performing vacuum vibro-compression of the mix with the second and third gates (52, 54) closed; once vibro-compression has been completed, opening the third gate (52) and transferring the support into the exit chamber (46) where a given vacuum value is already present; closing the third gate (54), restoring the atmospheric pressure inside the exit chamber (46); opening the fourth gate (58) and di

A distributor device (1) for distributing a mix (L) in one or more forming supports (S) for manufacturing articles made of composite stone material. The device (1) comprises mix supply means (10) designed to transport the mix (L) along a longitudinal feeding direction (X) towards the forming supports (S). The distribution device (1) further comprises mix lamination means (16) located between the supply means (10) and the supports (S). The invention also relates to a method and a plant for manufacturing articles made of composite stone material which use the aforementioned distributor device (1).

In some embodiments, a method may include preparing building forms including at least some cementitious materials. The method for preparing forms may include mixing substantially dry cementitious material particles with closed cell foam particles to form a substantially dry composition. In some embodiment, at least some of the cementitious material particles may adhere to at least some surface deformations on the surface of the closed cell foam particles. In some embodiments, the method may include mixing a second portion of water with the substantially dry composition for a second period of time to form a partially wet composition. In some embodiments, a method may include forming a building form including at least some cementitious materials from the partially wet composition. In some embodiments, the closed cell foam particles may include expanded polystyrene. In some embodiments, a ratio of the water to cementitious material particles may range from 0.20 to 0.40.

The present invention relates to a mold and a pressure piece for producing molded bricks, in particular molded concrete bricks, a process for producing this mold or this pressure piece, an apparatus for producing molded bricks, a vibratable base for producing molded bricks, a metal drawing sheet for producing molded bricks, and also the use of a coating comprising an antiwear matrix and an antiadhesion component for surfaces of molds and/or pressure pieces and/or vibratable bases and/or metal drawing sheets used for producing molded bricks.

A process produces building materials with inert materials capable of remaining durably solid and with a low environmental impact. The process includes mixing sand, sodium hydroxide and possibly additives, adding calcined kaolin, adding sodium silicate and/or a mixture of sodium silicate and potassium hydroxide, and adding photocatalytic titanium dioxide.

A cement-based artificial stone plate includes a cement-based plate body; and a metal mesh being embedded in the cement-based plate body; wherein the metal mesh is arranged with at least one fixing member, the fixing member defines a screw hole along its axis, and the screw hole of the fixing member is exposed on back of the cement-based plate body, and back of the plate body is provided with regular or irregular protrusions, between any two protrusions forms a groove, and bottom of each groove is close to the metal mesh.

A paving block with improved illumination (luminescent paving block) preferably includes a concrete base layer and a photoluminescent layer. The photoluminescent layer is formed on top of the concrete base layer. The concrete base layer is preferably created by combining sand, aggregate, water, pigment and cement to form an uncured concrete mixture. The photoluminescent layer preferably includes very fine aggreagate, cement, water, pigment, sand and a polyester resin infused with a photoluminescent pigment or a silica-based glass material infused with photoluminescent pigment. Further, a light transmitting sealant may be placed over the photoluminescent material.