Service trials of concrete sleeper assemblies details of installations laid in 1981 amd later following the deliberations of the Concrete Sleeper working party (TM-CES-109)

Report TM CES 108 dated August 1988 gave the latest position on those lengths of F27A and F27BS Concrete Sleepers laid in 1978-80, which were being monitored on behalf of the Concrete Sleeper Working Party. A number of other lengths were laid in 1981 and later, incorporating other features...