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.

A lightweight thermal insulating cement-based material is formed from a mixture that includes cement, water and a foaming agent. The foaming agent can be an aluminum powder or a surfactant. The insulating material has a maximum use temperature of about 900 degrees Celsius or more.

A lightweight thermal insulating cement-based material is formed from a mixture that includes cement, water and a foaming agent. The foaming agent can be an aluminum powder or a surfactant. The insulating material has a maximum use temperature of about 900 degrees Celsius or more.

A robot includes a movable vehicle to which is mounted a horizontal truss long enough to span the entire width of an area that has been demolished using impact methods. The truss extends laterally completely to one side of the robot and the robot travels on one side of a demolished area and the end of the truss has a wheeled support that can travel beyond the other side of a demolished area. A movable rotational lance device is traversed back and forth along the truss. With each pass the robot then moves perpendicular to the truss. The truss has a nozzle spraying water onto the area. In this way, an entire area is efficiently treated.

An apparatus including a tool device configured to be used in the manufacturing of engineered stone slabs. The tool device may be configured to travel in an x-y plane in order to create a physically disrupted region in a mixture of resin and aggregate minerals. The tool device may have a mechanism configured to vary a width of the physically disrupted region of the mixture while traveling in the x-y plane. The apparatus may further include a spray device, which is configured to deposit colorant in an area in a wake of travel of the tool device in the x-y plane. The spray device may be configured to deposit colorant in an area while the physically disrupted region is being created in the area. The tool device may be a carving device with a V-shaped component. The tool device may be a stirring device having one or more prongs.

A robotised construction system is provided that includes a cartesian robot that can be automatically lifted as the construction is becoming higher, that is provided with a system of robotic supply of the materials and of the electric and electronic installations and that is provided with specific fabrication tools which work some by the contribution of layers of fluid construction materials. In a cement-based usage in which the cement is setting and having been deposited, by projection of these same materials and others by forming and placing construction elements in a determined position.

An apparatus for forming soft mud cladding or paving articles, comprising an assembly for loading a mix in a mold box which is open upward and is provided with at least one impression for forming a corresponding blank provided with a laying surface which faces toward the outside of the impression, the mold box being movable along an advancement direction through the loading assembly, elements for skimming excess material loaded into the mold box, at least one assembly for overturning the mold box for the extraction of the at least one blank, an assembly for drying and firing the at least one blank so as to obtain a corresponding cladding article; the skimming elements comprise at least one skimming element which is forms at least one profile which substantially matches the profile of the laying surface of the blank being processed.

Ceramic matrix composite articles include, for example a first plurality of plies of ceramic fibers in a ceramic matrix defining a first extent, and a local at least one second ply in said ceramic matrix defining a second extent on and/or in said first plurality of plies with the second extent being less than said first extent. The first plurality of plies has a first property, the at least one second ply has at least one second property, and said first property being different from said at least one second property. The different properties may include one or more different mechanical (stress/strain) properties, one or more different thermal conductivity properties, one or more different electrical conductivity properties, one or more different other properties, and combinations thereof.

Ceramic matrix composite articles include, for example a first plurality of plies of ceramic fibers in a ceramic matrix defining a first extent, and a local at least one second ply in said ceramic matrix defining a second extent on and/or in said first plurality of plies with the second extent being less than said first extent. The first plurality of plies has a first property, the at least one second ply has at least one second property, and said first property being different from said at least one second property. The different properties may include one or more different mechanical (stress/strain) properties, one or more different thermal conductivity properties, one or more different electrical conductivity properties, one or more different other properties, and combinations thereof.

A method of producing ceramic wafer includes a forming step and processing step. The processing step includes forming positioning notch or positioning, flat edge and edge profile, which avoids the ceramic wafers to have processing defect during cutting, grinding, and polishing, for increasing yield. The ceramic particles for producing ceramic wafer include nitride ceramic powder, oxide ceramic powder, and nitride ceramic powder. The ceramic wafer has low dielectric constant, insulation, and excellent heat dissipation, which can be applied for the need of semiconductor process, producing electric product and semiconductor equipment.