End Post Gap Fill Assembly

A method of filling an end post gap for an insulated rail joint, the insulated rail joint comprising a first rail, a second rail aligned with the first rail and defining an end post gap between ends of the first rail and the second rail, a first rail joint bar, and a second rail joint bar, the first rail and the second rail each comprising a head portion, a web portion extending from the head portion, and a base portion extending from the web portion, the method comprising:

• inserting a gap fill member into the end post gap, the gap fill member having a first end, a second end positioned opposite the first end, a first face abutting the end of the first rail, and a second face abutting the end of the second rail, the gap fill member comprising a head section at the first end of the gap fill member and a stem section extending from the head section to the second end of the gap fill member, the head section positioned between the respective head portions of the first and second rails and the stem section positioned between the respective web portions and base portions of the first and second rails, the gap fill member having a length extending along a longitudinal axis of the gap fill member, a width extending perpendicularly to the longitudinal axis of the gap fill member, and a thickness extending from the first face to the second face, the thickness of the gap fill member is consistent from the first end of the gap fill member to the second end of the gap fill member, the gap fill member defining a circumferential gap between an outer surface of the gap fill member and outer surfaces of the first and second rails;
• and
• filling the circumferential gap with a sealant, wherein the sealant is electrically insulating.