Prestressed concrete sleepers a review of the use of strand for pretensioning (TR-TS-003)

Dow-Mac Concrete Ltd manufacture 600 000 - 700 000 concrete sleepers per year for British Rail, in 3 factories (Tallington, Eaglescliffe and Quedgeley). Almost all are pretensioned on the long line process with high tensile wires. Over the last 20 years or so, main line sleepers have been of...