Confirming the effectiveness of thinner sleepers

Fiber reinforced foamed urethane (FFU) synthetic wood sleepers have been used in Japan for almost 30 years, and support almost 1400 km of track and turnouts in countries around the world. The Tokaido Shinkansen line in Japan features turnouts and bridge bearers made from FFU. FFU sleepers have nearly the same specific gravity as natural wood, but a higher life expectancy and resistance to weathering. Further details of the construction of FFU sleepers and their benefits, including fatigue resistance, are presented in this article, along with results of laboratory testing.


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  • Accession Number: 01538686
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 28 2014 11:58AM