An investigation into the failure of silica-paste as an adhesion-improver (IM-ADH-021)

Track tests with the tribometer train have shown that silica-paste can improve low wheel-rail adhesion under certain conditions, levels of between 0.25 and 0,30 generally being recorded. However, during tests with London Transport, the rear half of an eight car set skidded when braking over a section of track which...