Concrete sleepers for F.B. rails. Sleepers shorter than 8ft-6in (E-159)

Basic design of prestressed concrete sleepers for use with F.B. rails without baseplates have been given in Reports Has. E. 60 (dated 5.10.53), E. 77 (dated 7.8.50 and E. 115 (dated 16.1.56). These sleepers ore now designated classes G. F and E and they were based on design rail...