Extruded pvc glass fiber reinforced railroad tie with enhanced thermal and mechanical stability

An extruded railroad tie comprising

• a hollow rectangular prism including an interior space, a top wall, a bottom wall and a pair of spaced apart side walls, the hollow rectangular prism being comprised of extruded PVC with glass fiber reinforcement, the glass fiber reinforcement including separated glass fibers and clumps of pelletized glass fibers, at least some of the separated glass fibers and clumps of pelletized glass fibers being palpable at an exterior side of the bottom wall;
• a plurality of parallel spaced apart interior walls defining a plurality of interior compartments, at least some of the separated glass fibers and clumps of pelletized glass fibers being palpable at interior sides of the top wall, bottom wall and plurality of parallel spaced apart interior walls;
• a capstock co-extruded on an exterior surface of the top wall and on exterior surfaces of the pair of spaced apart side walls;
• the plurality of parallel spaced apart interior walls including a first interior wall and a second interior wall, a plurality of threaded bolt holes extending through the top wall into each of the first interior wall and the second interior wall.