EPOXY COATED REINFORCEMENT CAGES IN PRECAST CONCRETE SEGMENTAL TUNNEL LININGS - DURABILITY. CORROSION OF REINFORCEMENT IN CONCRETE. PAPERS PRESENTED AT THE THIRD INTERNATIONAL SYMPOSIUM ON "CORROSION OF REINFORCEMENT IN CONCRETE CONSTRUCTION", BELFRY HOTEL, WISHAW, WARWICKSHIRE, MAY 21-24, 1990

The Great Belt Tunnel, constituting an 8 km section of the 18 km Great Belt combined road and rail 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 scanning electron microscopy and energy dispersive x-ray microprobe (SEM-EDS) techniques.(A) For the covering abstract of the conference see IRRD 831449.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/1851664874
• Corporate Authors:

  Elsevier Science Publishers

  Crown House, Linton Road
  Barking, Essex IG11 8JU,   England 
• Authors:
  • Ecob, C R
  • KING, E S
  • ROSTAM, S
  • Vincentsen, L J
• Publication Date: 1990

Language

• English

Media Info

• Pagination: p. 550-558
• Serial:
  • Publication of: CICC Publications
  • Publisher: CICC Publications

Subject/Index Terms

• TRT Terms: Chlorides; Coatings; Conferences; Corrosion; Electrodes; Epoxy resins; Precast concrete; Prevention; Reinforced concrete; Seas; Tests; Tunnels; Underground structures
• Uncontrolled Terms: Subterranean
• Geographic Terms: Denmark
• Subject Areas: Bridges and other structures; Security and Emergencies;

Filing Info

• Accession Number: 00606840
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• ISBN: 1-85166-487-4
• Files: ITRD, TRIS
• Created Date: Mar 31 1991 12:00AM