Abstract: In a method of reinforcing a pipe, a water penetration resistant layer and strengthening layer of fibrous material are impregnated with a curable polymer, positioned in a lining position near the pipe, and cured to form a water penetration resistant liner and a strengthening liner. The two layers can be impregnated and positioned separately or at once, for example, as a composite liner. Together, the liners provide a waterproof barrier and structural reinforcement to the resulting pipe. In a method of waterproofing a reinforced pipe, a water penetration resistant layer is impregnated with curable polymer, positioned over a previously installed reinforcing liner, and cured to form a waterproof barrier inhibiting ground water egress into the pipe. In certain embodiments of the methods, the water penetration resistant layer includes fibers woven in one of a satin weave and a twill weave.

Abstract: According to some embodiments, a cable protection system to at least partially shield a cable from heat, fire, an impact or other potentially harmful event or occurrence comprises a first encompassing member configured for placement around the cable or cable bundle, wherein a first void is defined between the first encompassing member and an outside of the cable or cable bundle. The system additionally includes a second encompassing member positioned around the first encompassing member, wherein a second void is defined between the first encompassing member and the second encompassing member. Further, the system comprises one or more fill materials positioned within the second void. In some embodiments, the fill material comprises vermiculite, ceramic and/or one or more other materials. The first void permits the cable protection system to be slidably moved relative to the cable or cable bundle.

Abstract: Reinforcement system for concrete panel wall, such as I-type flood wall, includes high tensile strength textile attached to wall by adhesive and reinforced by mechanical fasteners. Most preferred embodiment comprises a strip of fiber reinforced plastic spanning multiple panels, with the grain of the textile material extending horizontally. Alternative embodiment includes vertical FRP with bias-grain textile. Fasteners are preferably ductile fiber anchors.

Abstract: A method of reinforcing a structural member comprises positioning a shell around the structural member, placing a force dampening material around an exterior of the shell and securing the force dampening material around the shell. In certain arrangements, the method further includes at least partially filling a space defined between the structural member and the shell with a filler material. In some embodiments, the filler material comprises a concrete, a grout, an epoxy, combinations thereof and/or the like. In one embodiment, the shell comprises a fiber reinforced polymer (e.g., CFRP, GFRP, aramid fibers, epoxy, other resins, etc.). In alternative embodiments, the methods additionally includes placing one or more layers of fiber reinforced polymer around the shell prior to placing a force dampening material around an exterior of the shell. In some embodiments, the layer of fiber reinforced polymer comprises CFRP, GFRP or any other type of fiber reinforced polymer.

Abstract: Reinforcing system (10) for reinforcing structures with irregular surfaces, such as shaped columns. Fiber-reinforced plastic sheathing (25) is wrapped around or over the surface to be reinforced and fiber anchors (50) are installed at high stress areas, such as re-entrant corners. Cover strip (30) spreads force among fiber anchors (50) and provides a smooth finish.

Abstract: Reinforcement system for concrete panel wall, such as I-type flood wall, includes high tensile strength textile attached to wall by adhesive and reinforced by mechanical fasteners. Most preferred embodiment comprises a strip of fiber reinforced plastic spanning multiple panels, with the grain of the textile material extending horizontally. Alternative embodiment includes vertical FRP with bias-grain textile. Fasteners are preferably ductile fiber anchors.

Abstract: Reinforcing connector (10) for reinforcing attachment among components (110) of a structure (100); such as crossing beams (111), beam (111) supporting a slab deck (113), or masonry blocks (118). Reinforcing connector (10) includes a length of roving (20) composed of filaments (25). Roving (20) is disposed in borehole (50) piercing component (110). Free ends (21,23) of roving (20) protrude from borehole openings (51) and are splayed apart into individual filaments (25). Filaments (25) are attached to surfaces of components (110) with adhesive means (30). Reinforcing connector (10) increases ductility and resistance to lateral forces of structure (100).

Abstract: Composite coating (10) improves the resistance to blast or seismic forces of a structure (100), such as wall (101). Coating (10) includes a first layer (20) of elastomeric polyurethane in contact with and adhering to wall (101), a second layer (30) of elastomeric polyurethane in contact with and adhering to first layer (20), and a layer of textile (40) embedded between first layer (20) and second layer (30).

Abstract: Composite coating (10) improves the resistance to blast or seismic forces of a structure (100), such as wall (101). Coating (10) includes a first layer (20) of elastomeric polyurethane in contact with and adhering to wall (101), a second layer (30) of elastomeric polyurethane in contact with and adhering to first layer (20), and a layer of textile (40) embedded between first layer (20) and second layer (30).

Abstract: Blast-resistant building (11) includes a structural connection (10) including at least one layer of fiber reinforced composite (90) bonded to each connected structural element (20,30) along the length of the connection between structural panel (20) and elongate anchoring structures (30), such as I-beam (40) or additional concrete panel (50). Layer of fiber reinforced composite (90) spans peripheral seam (36), internal seam (37), or both between the connected elements, providing a tensile force under load which tends to hold the elements together and to strengthen the connection while simultaneously providing ductility along the seam, lessening the risk of fracture of either element or the connection under atypical loading, such as from a blast. Connection (10) includes an elongate tension member, such as bolt (80), for attaching the various elements, and a force dampener, such as a rubber isolation washer (89), to increase the ductility of the connection.

Abstract: Reinforcement of structures in high-moisture environments is achieved by applying reinforcement layers which include a fabric portion and an uncured resin portion where the uncured resin contains a moisture curable silicon-modified polyether resin. The uncured reinforcement layer is cured in place about the structure to form a composite reinforcement shell. The uncured reinforcement layer is formed from either dry-woven fabric or woven fabric which is pre-impregnated with a cured resin and then coated with the moisture-curable silicon-modified polyether resin. The invention finds particular use in reinforcing bridge supports and pilings which are at least partially submerged in water. Containment layers are used to prevent de-lamination during curing of the reinforcement structure. Use of a containment layer not only prevents de-lamination caused by waves or other turbulent water, but also enhances the underwater curing process.