Alternative Rebar Plant develops and produces Fiberglass Rebar. Fiberglass rebar is a stronger and lighter alternative to conventional steel rebar. It is ΒΌ the weight of steel, superior in tensile strength, non-magnetic, and non-conductive rebar that has a life cycle of 100+ years. Fiberglass Rebar is specified for use in roadways, bridges, dams, concrete slabs, barrier walls, marine applications, tunneling and temporary reinforcement, and power generation facilities.