Disclosed are hydrophobic finish compositions and cementitious articles made with the hydrophobic finish compositions. In some embodiments, the article is a waterproof gypsum panel surface reinforced with inorganic mineral fibers that face a flexible and hydrophobic cementitious finish possessing beneficial waterproofing properties. The waterproof gypsum panels of the invention have many uses, such as, tilebacker board in wet or dry areas of buildings, exterior weather barrier panel for use as exterior sheathing, and roof cover board having water durability and low surface absorption. The flexible and hydrophobic cementitious finish can include fly ash, film-forming polymer, silane compound (e.g., alkyl alkoxysilane), an extended flow time retention agent including either one or more carboxylic acids, salts of carboxylic acids, or mixtures thereof, and other optional additives.

The present invention relates to primer compositions in powder form that comprise a dispersion powder based on an acrylate polymer having a glass transition temperature in the range from 50 C. to +30 C. and cement. The compositions of the invention are notable for good water barrier effect, good dust-binding capacity, and a low tendency toward salt efflorescence. The encompositions find use in the priming of masonry, concrete, rendered surfaces, abraded render, plaster surfaces, wall blocks, wood, and ceramic tiles. They can also be used as adhesion promoters with nonabsorbent substrates such as glazed ceramic or glass tiles, metal surfaces, or surfaces of plastic.

A concrete coating composition, containing a thermally stable cement, glass bubbles, porous glass spheres or aerogel or a combination thereof, and glass fibers. Also, disclosed is a coated pipe having the concrete coating composition disclosed herein. The coated pipes disclosed herein can be thermally insulated, impact and abrasion resistant, flexible pipeline that can be used in downhole steam injection operations and for extracting hydrocarbons.

A concrete coating composition, containing a thermally stable cement, glass bubbles, porous glass spheres or aerogel or a combination thereof, and glass fibers. Also, disclosed is a coated pipe having the concrete coating composition disclosed herein. The coated pipes disclosed herein can be thermally insulated, impact and abrasion resistant, flexible pipeline that can be used in downhole steam injection operations and for extracting hydrocarbons.

The present invention provides concrete-containing compositions, and methods of making and using the same, that allow for the prevention of microbially induced corrosion in concrete. In certain embodiments, the concrete-containing compositions comprise a cementitious substrate, and a formulation of heavy metal-laden, carbon-based sorbent.

The present invention provides concrete-containing compositions, and methods of making and using the same, that allow for the prevention of microbially induced corrosion in concrete. In certain embodiments, the concrete-containing compositions comprise a cementitious substrate, and a formulation of heavy metal-laden, carbon-based sorbent.

The invention provides a process for the bio-based reparation of a concrete element having an element surface with cavities, comprising applying a first liquid with a first composition and a second liquid with a second composition to the element surface of the concrete element to provide a combined product to the cavities, wherein the first composition and the second composition are selected to provide gel formation in the cavities after application of one or more of the first liquid and the second liquid to the element surface, wherein the first composition and the second composition are also selected to provide bacterial material, a calcium source, and a nutrient for bacteria in the cavities after application of the first liquid and the second liquid to the element surface, wherein the first liquid at least comprises sodium silicate and wherein the second liquid at least comprises the calcium source.

An in situ inspection system and method to inspect a honeycomb body (122) skin in a skinning system. The inspection system includes a line illuminator (148) to generate a line illumination on the skin (136) perpendicular to an axial direction (112) of the honeycomb body travel, and a detector (152) to detect the line illumination scattered from the skin (136) and generate a signal based on the detected line illumination. A controller (184) is configured to receive the signal generated by the detector (152), compare the received signal to a previously stored defect free signal in real-time, and control at least one skinning process parameter based on the comparison. The method includes in situ inspecting the skin (136) and controlling at least one skinning process parameter based on the inspection. In the method, the in situ inspection includes illuminating a line of the skin (136) perpendicular to the axial direction (112) and detecting the illuminated line scattered from the skin (136).

A full-fiber burner brick and a preparation method thereof, comprising mixing alumina crystal fiber and amorphous ceramic fiber with both of them being a combination of fibers of different lengths gradations, and moreover adding fine powder fillers of different particle size gradations and supplementing other additives. This enables the internal structure of the product more uniform, increases the bulk density of the product, and also benefits the suction filterability of fiber cotton blank, and is conducive to forming and improving the strength of the blank. The surface of the brick body is further provided with a coating, which can effectively protect the cotton fiber of the brick body fiber from harsh environments, improve its high temperature resistance, and help to extend the service life of the burner brick.

A full-fiber burner brick and a preparation method thereof, comprising mixing alumina crystal fiber and amorphous ceramic fiber with both of them being a combination of fibers of different lengths gradations, and moreover adding fine powder fillers of different particle size gradations and supplementing other additives. This enables the internal structure of the product more uniform, increases the bulk density of the product, and also benefits the suction filterability of fiber cotton blank, and is conducive to forming and improving the strength of the blank. The surface of the brick body is further provided with a coating, which can effectively protect the cotton fiber of the brick body fiber from harsh environments, improve its high temperature resistance, and help to extend the service life of the burner brick.