Effect of de-icing salt as winter maintenance for corrosion of steel piles on bridges

V. M. Uotinen, A. Perälä, J. Laurila, P. Peura

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

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Abstract

Corrosion can have significant long-term effects on the structural resistance of steel piles in ground. There is a possibility that this effect can be intense if ground contains chlorides, sulphites or other aggressive chemicals. Also de-icing salt (NaCl) used on roads during winter maintenance may have effect on the corrosion of steel piles. In this research project a series of site investigations and laboratory tests have been conducted to investigate the effect of de-icing salt for corrosion on steel piles. Totally 12 sites were investigated, partly from locations where de-icing salt has been used and partly where de-icing salt has not been used. Most of the piles were part of bridge structures, but the study includes also data from a few special test piles. Investigated steel piles have been in ground for five to 24 years. The results show that the corrosion and its rate are low. The detrimental effect of de-icing salt on corrosion is negligible.

Original languageEnglish
Title of host publication IOP Conference Series: Earth and Environmental Science, Volume 710, 18th Nordic Geotechnical Meeting 18-19 January 2021, Helsinki, Finland
Subtitle of host publication18th Nordic Geotechical Meeting
PublisherIOP Publishing
Number of pages10
Volume710
Edition1
DOIs
Publication statusPublished - 2021
Publication typeA4 Article in a conference publication
EventNordic Geotechnical Meeting - Helsinki, Virtual, Finland
Duration: 18 Jan 202119 Jan 2021

Publication series

NameIOP Conference Series: Earth and Environmental Science
PublisherIOP Publishing Ltd.
ISSN (Print)1755-1307

Conference

ConferenceNordic Geotechnical Meeting
Country/TerritoryFinland
CityHelsinki, Virtual
Period18/01/2119/01/21

Publication forum classification

  • Publication forum level 0

ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

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