Assessment and Repair of Bridges Subjected to De-Icing Salts

Evaluation et Reparation des Ponts Exposes aux Sels de Deverglacage

Many highway bridges in Denmark were constructed during the period from 1960 to 1980. Most of the bridges were built from reinforced concrete, often using aggregates sensitive to alkali-silica reactions (ASR). The average temperature is close to 0°C in December, January and February, thus leading to many days with frost and a heavy usage of de-icing salts, the use of which in Denmark (43,000 km²) is approximately 300,000 tons per year. This paper presents cases where reinforced concrete (RC) and post-tensioned bridges have undergone major rehabilitation in order to halt the deterioration (corroded reinforcement and aggravated alkali-silica-reactions) primarily caused by de-icing salts.

  • Availability:
  • Supplemental Notes:
    • Abstract reprinted with permission of the World Road Association – PIARC.
  • Authors:
    • Andersen, Ulrik Sloth
    • Nielsen, Henrik
  • Publication Date: 2014

Language

  • English
  • French

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01519655
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 21 2014 12:25PM