Service life prediction of a concrete bridge structure subjected to carbonation

K. Y. Ann, S. W. Pack, J. P. Hwang, H. W. Song, Sang Hyo Kim

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

Carbonation-induced corrosion in concrete may often occur in a high carbon dioxide environment. In this study, the risk of carbonation of a concrete bridge in an urban area was evaluated by measuring the carbonation rate and concrete cover depth in three different parts: the sound, cracked and construction joint parts of cover concrete. The average carbonation rate was ordered by the sound > joint > cracked parts, and the concrete cover depth measured by an ultrasonic detector indicated the slightly greater value than the designed one (50.0 mm). Then, the carbonation-free service life at the depth of the steel was calculated, based on in situ information, by the safety factor method and the Monte Carlo simulation. The service life calculated by the two methods was mostly identical. The sensitivity of the carbonation rate and concrete cover depth to the time to carbonation at the depth of the steel was mathematically determined.

Original languageEnglish
Pages (from-to)1494-1501
Number of pages8
JournalConstruction and Building Materials
Volume24
Issue number8
DOIs
Publication statusPublished - 2010 Aug 1

Fingerprint

Carbonation
Concrete bridges
Service life
Concretes
Steel
Acoustic waves
Safety factor
Carbon Dioxide
Carbon dioxide
Ultrasonics
Corrosion
Detectors

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

Cite this

Ann, K. Y. ; Pack, S. W. ; Hwang, J. P. ; Song, H. W. ; Kim, Sang Hyo. / Service life prediction of a concrete bridge structure subjected to carbonation. In: Construction and Building Materials. 2010 ; Vol. 24, No. 8. pp. 1494-1501.
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Service life prediction of a concrete bridge structure subjected to carbonation. / Ann, K. Y.; Pack, S. W.; Hwang, J. P.; Song, H. W.; Kim, Sang Hyo.

In: Construction and Building Materials, Vol. 24, No. 8, 01.08.2010, p. 1494-1501.

Research output: Contribution to journalArticle

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