Method of producing a reinforcing bar

A method of producing a reinforcing bar comprising:

• arranging at least one solid thermoplastic polymer fiber having a first melting temperature in a central portion of a cross-section;
• arranging a plurality of non-metallic reinforcing fibers having a second melting temperature around an outer periphery of the at least one solid thermoplastic polymer fiber;
• then heating the at least one solid thermoplastic polymer fiber to between the first and second melting temperatures to melt the at least one solid thermoplastic polymer fiber and form a melted thermoplastic polymer that infiltrates between, and bonds to, the non-metallic reinforcing fibers;
• and
• cooling the melted thermoplastic to form a bar-shaped polymer core in the central portion of the cross-section and a fiber-reinforced polymer layer on an outer periphery of the bar-shaped polymer core.