According to the present disclosure, methods and techniques for generating preferred concrete block products are provided. The methods and techniques involve providing addition of color to selected section within the blocks (1), as described herein, to generate enhancement effects. Typical applications involve spray applications for color pigment to visually distinct sections of the block (1) on one or more decorative surfaces.

According to the present disclosure, methods and techniques for generating preferred concrete block products are provided. The methods and techniques involve providing addition of color to selected section within the blocks (1), as described herein, to generate enhancement effects. Typical applications involve spray applications for color pigment to visually distinct sections of the block (1) on one or more decorative surfaces.

The invention relates to an impregnation cream. The impregnation cream contains water, at least one emulsifier and at least one polydimethylsiloxane selected from: HO—(SiMe.sub.2O).sub.n—H and Me.sub.3SiO—(SiMe.sub.2O).sub.n—SiMe.sub.3, wherein n is an integer from 20 to 2500, wherein the impregnation cream is free of hydrocarbons, alkoxylated silanes, alkoxylated siloxanes and amine group-functionalized siloxanes.

The invention relates to an impregnation cream. The impregnation cream contains water, at least one emulsifier and at least one polydimethylsiloxane selected from: HO—(SiMe.sub.2O).sub.n—H and Me.sub.3SiO—(SiMe.sub.2O).sub.n—SiMe.sub.3, wherein n is an integer from 20 to 2500, wherein the impregnation cream is free of hydrocarbons, alkoxylated silanes, alkoxylated siloxanes and amine group-functionalized siloxanes.

Ultra-lightweight aerogels and methods for fabricating such aerogels from ammonia borane and a support structure, where the support structure is either two-dimensional nanostructures, or hydrocarbon polymer colloids. The components are mixed, then annealed. The properties of the disclosed aerogels can be tuned by controlling the ratio between the support structure and the ammonia borane, or by infiltrating the aerogels with additives.

A reflective particulate material comprises a particulate substrate, and a coating on the particulate substrate. The coated reflective particulate material may have a relative error of an amount of the coating on the particulate substrate of about 5% to about 15%, and/or a dust index of about 5 or lower, and/or a staining loss of about 8% to about 11%. A method of manufacturing the reflective particulate material comprises mixing the particulate substrate with a liquid coating composition to form a wet particulate mixture, passing the wet particulate mixture through at least one heat zone to remove water and/or moisture, and curing the coating material in the coating composition.

A reflective particulate material comprises a particulate substrate, and a coating on the particulate substrate. The coated reflective particulate material may have a relative error of an amount of the coating on the particulate substrate of about 5% to about 15%, and/or a dust index of about 5 or lower, and/or a staining loss of about 8% to about 11%. A method of manufacturing the reflective particulate material comprises mixing the particulate substrate with a liquid coating composition to form a wet particulate mixture, passing the wet particulate mixture through at least one heat zone to remove water and/or moisture, and curing the coating material in the coating composition.

An object of the present invention is to provide a porous ceramic laminate that can reduce pressure loss of a fluid. The present invention is a porous ceramic laminate comprising a first porous layer and a second porous layer, wherein the second porous layer is laminated on the first porous layer, the second porous layer has a portion being laminated on, in contact with, the first porous layer and a portion being laminated over the first porous layer via air, and a coefficient of variance CV (t.sub.b) of the second porous layer thickness is not larger than 0.35.

An object of the present invention is to provide a porous ceramic laminate that can reduce pressure loss of a fluid. The present invention is a porous ceramic laminate comprising a first porous layer and a second porous layer, wherein the second porous layer is laminated on the first porous layer, the second porous layer has a portion being laminated on, in contact with, the first porous layer and a portion being laminated over the first porous layer via air, and a coefficient of variance CV (t.sub.b) of the second porous layer thickness is not larger than 0.35.

A concrete curing agent, a curing coating layer and a preparation method thereof, the concrete curing agent comprises a hardening agent and a hydrophobic agent, the raw materials of the hardening agent comprises the following raw materials in parts by weight: 0.1-10 parts of fluorosilicate salt and 100 parts of water, and the hydrophobic agent comprises the following raw materials in parts by weight: 0.1-10 parts of a base catalyst, 1-10 parts of a silane coupling agent, 0.1-10 parts of hydrogen-containing silicone oil, 5-10 parts of a cross-linking agent, 10-100 parts of silica sol and 100-1000 parts of water. The present invention can significantly improve the strength, hardness and hydrophobicity, impermeability and freeze-thaw resistance of surface of concrete before and after hardening, and effectively improves the service life of concrete structures.