Reinforcement method for concrete structures using flame retardant adhesive resin impregnated reinforcement fiber composites

摘要

The present invention is to remove the foreign matter on the concrete surface to be reinforced and to clean the surface; Selecting a location to attach the fiber composite to the concrete surface, and selecting a size of the fiber composite to be applied and cutting the location; A fiber composite installation step of attaching a fiber composite impregnated with a flame retardant adhesive resin to the selected location using an epoxy adhesive; And it relates to a method of reinforcing a concrete structure using a fiber composite impregnated with a flame-retardant adhesive resin comprising a finishing and curing step of finishing the surface of the concrete surface where the fiber composite is installed and curing an epoxy adhesive, The flame-retardant adhesive resin-impregnated fiber composite is carbon fiber, glass fiber, aramid fiber, basaltic fiber and one or more reinforcing fibers selected from the group consisting of composite fibers 70 to 90% by weight, flame retardant adhesive resin 10 to 30% by weight applied and impregnated; The flame-retardant adhesive resin with respect to 100 parts by weight of the epoxy resin, hyaluronic acid cross-linked inorganic flame retardant 80 to 100 parts by weight and epoxide cross-linking agent 30 to 60 parts by weight; An amine-based curing agent, an acid anhydride-based curing agent, an imidazole-based curing agent, and a curing agent selected from the group consisting of mixtures thereof in a weight ratio of 2 to 5:1; The inorganic flame retardant in which the hyaluronic acid is crosslinked is prepared by reacting hyaluronic acid or a salt of hyaluronic acid with glycidyl methacrylate, and then dispersing the inorganic flame retardant inside the hyaluronic acid hydrogel prepared by photocrosslinking by irradiating ultraviolet rays. Using the old one; The construction method of repairing and reinforcing the concrete structure is simple, it can exert high flame retardant performance in the event of a fire, does not emit fatal gas to the human body, and impregnated with flame-retardant adhesive resin that can maintain the adhesive strength of excellent epoxy resin It relates to a method of reinforcing a concrete structure using fibers.