Abstract: A carbon nanotube studded carbon fiber tow and matrix prepreg includes a body comprising a tow of surface fibers and interior bulk fibers. The surface fibers are studded with carbon nanotubes and the carbon fibers are infiltrated with a matrix material.

Abstract: A pultruded composite guardrail is comprised of one or more layered reinforcement materials and a resin permeating the one or more layered reinforcement materials, the one or more layered reinforcement materials and resin forming a solid shaped guardrail or guardrail beam when the resin is cured. The shaped member may be thrie beam shaped and the resin used may be a poly-urethane thermoset resin. The guardrail may be used in a guardrail system comprised of one or more guardrails and one or more posts. The guardrail system may also include a spacer block attached to each post, an anchor attached to the posts, a splice plate coupling a plurality of the guardrails together, and a plurality of fasteners for joining the components of the guardrail system.