The present disclosure relates to moisture-impermeable membranes and discloses a waterproofing membrane for use with leak detection system. The membrane comprises, an intermediate layer fused between upper and lower waterproofing layer. The intermediate layer comprises conductive grid, formed by weaving conductive threads, that define a plurality of zones. Each zone comprises a cross sensor, formed by conductive threads. The conductive grid and the cross sensors are connected to a positive terminal of a power supply and negative terminal is connected to a deck. During leak detection, power supply to a selected cross sensor is disconnected, potential difference is measured between the cross sensor and the grid, and compared with a pre-defined threshold potential difference to identify leakage. The membrane eliminates complex wires and cables structure in comparison with conventional waterproofing and leak detection systems.

In various embodiments, an improved flexible-composite material is described that comprises at least one scrim constructed from at least two unidirectional tape layers bonded together and at least one woven fabric, non-woven fabric, or membrane bonded to the scrim. In various embodiments, the unidirectional tape layers comprise a plurality of parallel fiber bundles comprising monofilaments within an adhesive resin. In various embodiments, the fiber bundles are separated by gaps that can be filled in by adhesive or non-adhesive resin.

The present invention relates to a method of making a composite sandwich structure. The method comprises the steps of: providing a base lay-up on a surface, wherein the base lay-up comprises a first reinforcement material layer; providing a core layer on to the base lay-up, wherein the core layer comprises an open cellular structure and wherein the open cellular structure is at least partially filled with unbound particles; providing a top lay-up on top of the core layer, wherein the top lay-up comprises a second reinforcement material layer; sealing the arrangement within a hermetically sealed enclosure; introducing matrix material into the arrangement via the at least one conduit through a pressure differential; and curing the matrix material.

A method of manufacturing a rotor blade for a wind turbine is provided. The method includes steps of providing a mould defining an outer shape of a the rotor blade or a portion thereof; arranging a plurality of fibre fabric layers on a surface of the mould having at least one inclined surface portion; and laminating the fibre fabrics layers together by infusing a liquid resin into the mould. A step of interlocking the plurality of fibre fabric layers using at least one mechanical interlocking element prior to laminating the fibre fabric layers together is carried out.

A protective assembly comprises a first region formulated and configured to provide protection from alpha, beta, and electromagnetic radiation and comprising a composite of particles and polymer; a second region formulated and configured to provide protection from ballistic impact and comprising a composite of fibers and polymer; and a third region formulated and configured to provide protection from thermal radiation and comprising a composite of particles, fiber, and polymer. The protective assembly may be provided on an aerospace structure. The protective assembly may be formed on the aerospace structure body using a co-curing process.

A thermal insulation cover for a pool, and an above-ground pool are provided. The thermal insulation cover comprises: a side wall portion, which is annular and is adapted to surround a wall of a pool; and a top cover portion comprising an outer circumference connected to a top circumference of the side wall portion. Each of the side wall portion and the top cover portion comprises an outer layer, an inner layer, and a filling layer disposed between the outer layer and the inner layer. The filling layer may be polyester batting.

A method of installing a binder-based overlay system may include contacting a layer of geotextile fabric to a surface of a substrate and applying a primer layer to a surface of the geotextile fabric. Two or more binder layers including infill particles may be applied over the primer layer. A resurfacer layer followed by one or more color layers may be applied over the two or more binder layers. The primer layer, one or more binder layers, resurfacer layer, and two or more color layers may cure upon application to form a monolithic layer upon the substrate.

A system and method for producing a heat-sealable composite liquid impervious, moisture-eliminating membrane with a metallic antimicrobial surface treatment including a compatibilized thermoplastic laminate structure, an integral inductive-welding element, and a metallic antimicrobial surface treatment. The method is provided with at least one scrim, a film exudate, a quantity of primary adhesive, at least one susceptor, and a quantity of flocking material, wherein the scrim, film exudate, and flocking material are composed of a compatibilized thermoplastic compound. The method is further provided with an optional metallic slurry, defining a thermoplastic-particulate emulsion configured to coat and embed into a subjected membrane section and fibrous materials when exposed to heat. The method is further expanded to apply to extant installations of similar membrane sections, enabling to post-manufacture surface treatment of a surface with the metallic slurry to confer manifold antimicrobial benefits to said surface.

A patch (100) for repair of a structure (180) with a defect (182) having a topography, the patch (100) including: a patch body (102) that is at least partially metallic; a bonding surface (104) that is compatible with the topography of the defect (182); and a patch surface (106) opposite the bonding surface (104), wherein the patch (100) has a variable porosity and a set of material properties; and wherein at least one material property of the set of material properties varies as a result of the variable porosity.

A building product for application to the exterior of a building. The front face of the product utilizes a first fiber sheet partially embedded within a thermoset polymer coating resin. A foamed closed cell admixture composition core with an inorganic filler overlays the thermoset polymer coating resin with the embedded fiber sheet. The admixture composition infiltrates and bonds to the portion of the fiber sheet that is not embedded within the thermoset polymer coating resin mechanically bonding to the thermoset polymer coating. A second fiber sheet overlays the admixture core and the admixture and second fiber sheet form the rear surface of the building product that is mounted adjacent the building surface.