Concrete sleeper performance observations & tests on a consignment of F27 sleepers laid at Colwich (WCML) where an undue rate of deterioration was evident (TM-CES-101)

Observations are being made on behalf of the Concrete Sleeper Working Party of some early consignments of F27A (D912) sleepers laid in 1978. One site was in the down line North of Colwich (WCML) near the 128½ milepost. 532 type D912 sleepers were laid at the Stafford end, and...