Inspection of concrete bridges project: Inspection and assessment of post-tensioned concrete bridges (RR-TCE-015)

Since the sudden failure of the Ynys-y-Gwas bridge in 1985, the durability of post-tensioned prestressed concrete structures has caused increasing concern. Railtrack owns nearly two thousand prestressed concrete bridges. Some of them are post-tensioned segmental structures, which have mainly been built during the last thirty years. Because concrete has...