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Retrofitting Gravity Load Designed R.C Frames Using FRP Read chapter Read first chapter

2019 | OriginalPaper | Chapter

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

Authors : Hassan Ghanem, Ayman Trad, Mohamed Dandachy, Adel ElKordi

Published in: Advances and Challenges in Structural Engineering

Publisher: Springer International Publishing

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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.

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previous chapter Verification of Mechanism on Improvement of Drying Shrinkage or Air Permeability on Concrete Using Blast Furnace Slag Sand Based on Pore Structure
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Metadata
Title
Effect of Wet-Mat Curing Time on Chloride Permeability of Concrete Bridge Decks
Authors
Hassan Ghanem
Ayman Trad
Mohamed Dandachy
Adel ElKordi
Copyright Year
2019
Book
Advances and Challenges in Structural Engineering

Print ISBN: 978-3-030-01931-0

Electronic ISBN: 978-3-030-01932-7

Copyright Year: 2019

DOI
https://doi.org/10.1007/978-3-030-01932-7_16