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Effect of Wet-Mat Curing Time on Chloride Permeability of Concrete Bridge Decks

  • Hassan GhanemEmail author
  • Ayman Trad
  • Mohamed Dandachy
  • Adel ElKordi
Conference paper
Part of the Sustainable Civil Infrastructures book series (SUCI)

Abstract

This study presents findings related to chloride permeability of several widely used Texas Department of Transportation bridge deck concrete mixtures. The rapid chloride permeability test (RCPT) was selected and seven mix designs were tested; five were evaluated using cores taken from field-cast model bridge decks and the other two from laboratory-cast specimens. Mix designs were selected based on their extent of use around the state, with differences in terms of type of cement, coarse aggregate type, and supplementary cementitious materials. Wet-mat curing durations of 0, 2, 4, 8, 10 and 14 days were evaluated for each mix. Experimental results showed that no significant benefit for resistance to chloride permeability beyond 2, 4 or 8 days depending on the mixture, beyond which the benefits appeared to diminish. A comparison of results obtained from the RCPT and its alternative test; the ponding test, showed a correlation between their results for some mixtures.

Keywords

Concrete permeability Curing Bridge deck Mix design 

Notes

Acknowledgements

The writers would like to thank the Texas Department of Transportation for its support of this research. The technical assistance of Michel Laverton is also acknowledged.

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Hassan Ghanem
    • 1
    Email author
  • Ayman Trad
    • 1
  • Mohamed Dandachy
    • 1
  • Adel ElKordi
    • 1
  1. 1.Department of Civil EngineeringBeirut Arab University (BAU)TripoliLebanon

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