A method of installing a flooring structure is disclosed. The method includes providing an acoustic insulating layer over a sub-floor layer. The method also includes providing an underlayment layer over the acoustic insulating layer. The provided underlayment layer includes gypsum concrete having a water-resistant additive. Also disclosed is a flooring structure. The flooring structure includes an acoustic insulating layer over a sub-floor layer. The flooring structure also includes an underlayment layer having a first side and a second side opposite the first side. The underlayment layer includes gypsum concrete having a water-resistant additive. Additionally disclosed is a gypsum concrete flooring underlayment product. The product includes a mixture of alpha calcium sulfate hemihydrate and beta calcium sulfate hemihydrate. The product also includes a silane-based powder intermixed with the mixture of alpha calcium sulfate hemihydrate and beta calcium sulfate hemihydrate.

This invention provides acoustical building panels and methods for imparting the acoustical property to wallboard with help of a compliant coating.

This invention provides acoustical building panels and methods for imparting the acoustical property to wallboard with help of a compliant coating.

A process for producing an anti-erosion coating on an inner or outer metal wall of a chamber of a fluid catalytic cracking unit, comprising: (i) the shaping of a honeycomb metal anchoring structure, said anchoring structure being formed from a plurality of strips connected in pairs by joining assembly portions of these strips so as to form a plurality of cells between two adjacent strips, (ii) the fastening of said anchoring structure by welding to said metal wall, so that each cell of the anchoring structure is welded to the wall of the chamber at least at the junctions between the contiguous assembly portions of two adjacent strips, and (iii) the insertion of a composite material into the cells from the metal wall and at least up to the upper longitudinal edge of each strip.

There is provided a resin impregnated decorative paper sheet (2) in which a decorative paper sheet (4) is impregnated with an impregnation resin (5). The decorative paper sheet (4) includes: a base paper sheet (6); a pattern layer (7) provided on a surface (6a) side of the base paper sheet (6); a foamed resin layer (8) formed by a foaming agent arranged on a surface (7a) of the pattern layer (7) or in the pattern layer (7); and a thermosetting resin layer (9) provided on a surface (8a) of the foamed resin layer (8). The thermosetting resin layer (9) contains at least one of an epoxy resin, a casein resin, an acrylic resin, and a urethane resin.

There is provided a resin impregnated decorative paper sheet (2) in which a decorative paper sheet (4) is impregnated with an impregnation resin (5). The decorative paper sheet (4) includes: a base paper sheet (6); a pattern layer (7) provided on a surface (6a) side of the base paper sheet (6); a foamed resin layer (8) formed by a foaming agent arranged on a surface (7a) of the pattern layer (7) or in the pattern layer (7); and a thermosetting resin layer (9) provided on a surface (8a) of the foamed resin layer (8). The thermosetting resin layer (9) contains at least one of an epoxy resin, a casein resin, an acrylic resin, and a urethane resin.

The present disclosure relates to a method of manufacturing an engineered flooring product comprising a core layer. The method provides the steps of: (a) mixing a hydrate compound, one or more stabilizing agents, and water in a mixer, forming a raw material slurry; (b) spreading a first layer of the raw material slurry onto a cull plate; (c) curing the first layer of raw material slurry; (d) after step (c), releasing the cured first layer of raw material slurry from the cull plate; (e) after step (d), trimming the cured first layer of raw material slurry released from the cull plate; and, (f) after step (e), cooling the cured first layer of raw material slurry released from the cull plate for at least about 24 hours at a temperature ranging from about I0 C-30 C thereby forming the engineered flooring product.

The present disclosure relates to a method of manufacturing an engineered flooring product comprising a core layer. The method provides the steps of: (a) mixing a hydrate compound, one or more stabilizing agents, and water in a mixer, forming a raw material slurry; (b) spreading a first layer of the raw material slurry onto a cull plate; (c) curing the first layer of raw material slurry; (d) after step (c), releasing the cured first layer of raw material slurry from the cull plate; (e) after step (d), trimming the cured first layer of raw material slurry released from the cull plate; and, (f) after step (e), cooling the cured first layer of raw material slurry released from the cull plate for at least about 24 hours at a temperature ranging from about I0 C-30 C thereby forming the engineered flooring product.

The web frame is a bonded assembly of panels and porous blanket layers, separated by an arrangement of isolated spacers. The panels and spacers are covered with a bonding means. A coating covers inner surfaces of the panels and spacers. The porous blanket is compressed and pinned between these panels, by spacers that are arranged as isolated nodes or columns The spacers have sharpened ends that penetrate the blanket and connect with the opposing panel. The web frame assembly provides thermal and sound insulation for buildings and other solid objects. These web frames are lightweight, durable, and permeable. Capillaries and passages throughout the panels and fibres of the blanket allow passage of moisture and air, thereby assisting in the management of condensation within the web frame.

A concrete construction (100) made by 3D concrete printing that contains: two or more layers (102, 106) of cementitious material extruded one above the other, and at least one elongated steel element (104) reinforcing at least one of the layers (102, 106). The elongated steel element (104) has an elastic and plastic elongation at break that exceeds 4%. The high elongation of the elongated steel element gives an increased ductility to the concrete structure (100).