FRP MATERIAL AND ITS MANUFACTURE

PROBLEM TO BE SOLVED: To manufacture an FRP material having a low facility cost without impairing mechanical characteristics of a molding without dust and noise by forming a folding pattern at least on one side surface of the molding made of a fiber-reinforced composite material. SOLUTION: The FRP material 1 is a lengthy solid flat plate strip-like molding in an entirety, and is used mainly as a reinforcing material of a concrete structure. Here, the material 1 is formed with an interstice pattern made of a layer of a thermosetting resin cured material on a surface of a molding 3 of the FRP material made of reinforcing fibers 3a and a resin cured material 3b. The interstice pattern is formed on a surface of a resin or the like when a woven fabric is press bonded to a resin or the-like having flowability as a casting mold, and, after the resin or the like is cured, the pattern formed on the surface of the resin or the like is formed when the fabric is released. That is, a cloth 2' is laminated and cured on the surface of the molding 3, and the molding 3 is supplied to a job site in this state as it is, then the cloth 2' is released from the molding 3 immediately before execution, and used as the material 1.