To provide a reinforcing material made from a fiber-reinforced synthetic resin without becoming a cause of peeling off of concrete, etc., by corrosion.
This reinforcing material is produced from a composite fiber bundle 1 obtained by bundling in a plurality of composite fibers. The composite fibers are equipped with a low melting point component consisting of a thermoplastic resin constituting a matrix resin, and a high melting point component consisting of a thermoplastic resin constituting the reinforcing fiber. In the case of producing the composite fiber bundle 1 from in the plurality of composite fibers, they are twisted for preventing them from becoming released and falling into pieces. The composite fiber bundle intermediate linear material 1 is wound on a linear material-delivery bobbin of a net-twisting machine, and a mesh-formed material 3 is formed. The mesh-formed material 3 is heated at or higher than the melting point of the low melting point component and at or lower than the melting point of the higher melting point component to melt the lower melting point component and then cooled to make a net-formed material made from a fiber-reinforced thermoplastic resin obtained by fixing the reinforcing fibers (the higher melting component) with the low melting component in one unit. The net-formed material can be used as the reinforcement of piled soil or slope surface.
MATSUNO SHIGEHIRO
NAKASONE TAKAYOSHI
OTA AKIO
YASHIRO HIROFUMI
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