Concrete sleeper performance observations on sleepers at Chelford where an undue rate of deterioration was evident (TM-CES-099)

When the F27A design of sleeper was introduced in 1978, the Concrete Sleeper Working Party asked for observations to be kept on the early lengths. 9 such lengths were laid between Autumn 1978 and Spring 1980; all are referred to in Research Division Reports already issued. One length which...