Concrete sleeperstype F27 examination of sleepers from a length at Tring, which deteriorated prematurely (TM-CES-028)

The track in the Up Fast West Coast Main Line between the 30 and the 31 mile posts near Tring, was re-laid about 4 years ago with CWR on standard F27 Concrete Sleepers, After only 3 years of service, deterioration of the sleeper assemblies was sufficiently serious that the...