Primix Cross Tie Structure
The composite railroad tie consists of two major parts:
Inner core
The core includes a W-beam made of roll-formed steel, spike-fastening blocks made from a patented composite material, and concrete.
Composite Shell
The shell is made from a special blend of recycled rubber-plastic material that encapsulates the core seamlessly by means of extrusion with a patented traction engine. The dual essentials of this tie are the design and innovation in materials.