A water-repellent member includes a matrix part including an inorganic substance including at least one of a metal oxide or a metal hydroxide, and a water-repellent resin present in a dispersed state inside the matrix part. The water-repellent member has a porosity of 20% or less in a section of the matrix part. A building member and a wet room member each include the water-repellent member.

A water-repellent member includes a matrix part including an inorganic substance including at least one of a metal oxide or a metal hydroxide, and a water-repellent resin present in a dispersed state inside the matrix part. The water-repellent member has a porosity of 20% or less in a section of the matrix part. A building member and a wet room member each include the water-repellent member.

A ceramic or composite coating is prepared from a mixture of a fire-resistant binder and an inorganic filler such that the mixture is suitable to be applied as a coating to a substrate, can be cured in situ, and protects the underlying substrate to which it is applied. In one example, the inorganic filler includes fly ash, where a mix ratio of the inorganic filler to the fire-resistant binder is from 1:1 to 9:1 by weight. The mixture can be cured in air at room temperature to form a composite coating on wood, metal, composites, and other substrates. High temperature processing can convert the composite to a ceramic.

A ceramic or composite coating is prepared from a mixture of a fire-resistant binder and an inorganic filler such that the mixture is suitable to be applied as a coating to a substrate, can be cured in situ, and protects the underlying substrate to which it is applied. In one example, the inorganic filler includes fly ash, where a mix ratio of the inorganic filler to the fire-resistant binder is from 1:1 to 9:1 by weight. The mixture can be cured in air at room temperature to form a composite coating on wood, metal, composites, and other substrates. High temperature processing can convert the composite to a ceramic.

Gypsum panels and methods of making the same are provided. A method of making a gypsum panel includes forming a first gypsum slurry by combining stucco, water, a siliconate, and a phosphate salt or polymer, and setting the first gypsum slurry to form at least part of a core of the gypsum panel, wherein the gypsum panel displays a 2-hour water absorption test weight increase of at least 10 weight percent less than an otherwise identical comparative panel containing no phosphate salt or polymer in its core.

Gypsum panels and methods of making the same are provided. A method of making a gypsum panel includes forming a first gypsum slurry by combining stucco, water, a siliconate, and a phosphate salt or polymer, and setting the first gypsum slurry to form at least part of a core of the gypsum panel, wherein the gypsum panel displays a 2-hour water absorption test weight increase of at least 10 weight percent less than an otherwise identical comparative panel containing no phosphate salt or polymer in its core.

This document relates to methods for improving the tensile and elastic properties of cement of an oil well using cement compositions that contain sliding-ring polymer additives. The cement compositions containing the sliding-ring polymer additives exhibit increased stiffness while having a minimum impact on compressive strength, as compared to the same cement without the sliding-ring polymer additive.

A method for applying a high friction surface roadway treatment and composition used therein is disclosed. The method comprises the steps of: providing a binder composition, comprising: 10-99.9 wt. % of a resin; 0.1-70 wt. % of an elastomer; heating the binder composition to a sufficient temperature to obtain a molten binder composition; applying a layer of the molten binder composition; and applying a layer comprising aggregate having a nominal maximum size of at least 1 mm, and an embedment depth of at least 30% in the molten binder composition layer. The resin is selected from hydrocarbon resins, alkyd resins, rosin resins, rosin esters, and combinations thereof.

A method for applying a high friction surface roadway treatment and composition used therein is disclosed. The method comprises the steps of: providing a binder composition, comprising: 10-99.9 wt. % of a resin; 0.1-70 wt. % of an elastomer; heating the binder composition to a sufficient temperature to obtain a molten binder composition; applying a layer of the molten binder composition; and applying a layer comprising aggregate having a nominal maximum size of at least 1 mm, and an embedment depth of at least 30% in the molten binder composition layer. The resin is selected from hydrocarbon resins, alkyd resins, rosin resins, rosin esters, and combinations thereof.

Expansive cements for use in cementing subterranean wells comprise water, an inorganic cement and one or more particulate materials that swell upon contact with a water immiscible fluid. The cements may further comprise a water immiscible fluid. Such cements are designed to seal microannuli arising from the presence of water immiscible fluids on casing surfaces, borehole wall surfaces or both.