Abstract
The Great Belt Tunnel, constituting an 8 km section of the 18 km Great Belt combined road and link between the islands of Zealand and Funen in Denmark, is to be constructed using precast reinforced concrete segments. The exposure conditions to which the tunnel will be subjected have been identified as being particularly aggressive with greatest risk of damage arising from chloride induced corrosion of the segment reinforcement cages. Primary protection to the reinforcement will be provided by an epoxy coating applied using fluidised bed techniques, which permits a complete pre-welded cage to be coated. The paper describes the structural risks associated with corrosion of the segment reinforcement, the reasons for selecting fusion bonded epoxy coating, the specification, and a review of research and experience into the protection against corrosion afforded by the process. Accelerated corrosion testing of anode/cathode pairs of bars, both coated and uncoated, is described. The test pieces were submerged in chloride solutions and were subsequently sectioned for examination using SEM-EDS techniques. (A)
| Original language | English |
|---|---|
| Title of host publication | Unknown Host Publication Title |
| Publisher | London, U.K., Elsevier Applied Science |
| ISBN (Print) | 1851664874, 9781851664870 |
| State | Published - 1990 |
ASJC Scopus subject areas
- General Engineering