Repair and strengthening of structures with electrically-cured resin-impregnated wrap

Abstract

A method and an article of manufacture are disclosed for reinforcing various structures, such as pipes, piles, walls, tanks, silos, chimneys, and the like, constructed from various materials including steel, concrete, masonry, wood, plastics, and the like. Some of the various structures may be used to transport water, gas, oil, and the like. One or multiple layers of various material sheets, each sheet having substantially the same or different properties, may be impregnated with resin and wrapped around or attached to the surface of a structure to be reinforced or to the surface of a spacer shell surrounding the structure and subjected to heat to cure the resin and to bond the reinforcement sheets to the structure or the spacer shell. The multiple layers together constitute a heat-cured structure reinforcement wrap (HRW) to reinforce the structure against external and internal loads, such as weight, impact load, blast load, internal pressure, ballistic load, and the like.

Dependencies are inferred from the claim text.