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Estimated performance of as-built internally cured concrete bridge decks



Author(s): J. Weiss, Y. Bu, C. Di Bella, C. Villani
Paper category: Workshop
Book title: RILEM International workshop on performance-based specification and control of concrete durability
Editor(s): D. Bjegović, H. Beushausen, M. Serdar
ISBN: 978-2-35158-135-3
e-ISBN: 978-2-35158-136-0
Pages: 369 - 376
Total Pages: 8
Language: English


Abstract: 
Internally cured concrete has rapidly emerged over the last two decades as a potential method to reduce random cracking in concrete bridge decks. By reducing cracking and reducing transport properties internal curing can lead to the improvement in the durability of bridge decks. Internally cured (IC) concrete consists of using water filled inclusions to supply water as needed to the cementitious matrix. While the literature has reported results from numerous laboratory studies on internal curing, full scale field placements in Indiana and New York have shown that internally cured concrete can be mixed and placed successfully in the field. For the bridge decks cast in 2010 in Indiana both higher strength and lower fluid transport properties were observed for the IC concrete mixture. In addition, the internally cured bridge deck was uncracked 18 months after placement while the conventional deck contained three visible cracks. Concrete bridge decks cast in New York have shown similar or improved strength, similar or improved transport, and reduced cracking. This paper will review results from those projects and will estimate the service life that can be expected. The paper will begin to discuss how the specifications may be developed to move from special specifications toward more general performance specifications.


Online publication: 2013
Publication Type: full_text
Public price (Euros): 0.00