American Society of Civil Engineers


Behavior of HP Concrete Bridge Decks in New York


by Sreenivas Alampalli, M.ASCE, (Transportation Research and Development Bureau, New York State Department of Transportation, Albany, New York 12232-0869) and Frank Owens, A.M.ASCE, (Transportation Research and Development Bureau, New York State Department of Transportation, Albany, New York 12232-0869)
Section: Fracture Mechanics & Related Topics in Reinforced Concrete, pp. 1-6, (doi:  http://dx.doi.org/10.1061/40492(2000)169)

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Document type: Conference Proceeding Paper
Part of: Structures 2000: Advanced Technology in Structural Engineering
Abstract: In 1996 New York State introduced a "high performance" concrete mixture to improve the performance and durability of bridge decks. Designated Class HP concrete, fly ash and microsilica were substituted for a portion of the cement resulting in lower permeability while maintaining good handling characteristics. A recent study assessed its performance and compared to previously used bridge deck concretes. Results indicate that it has increased cracking resistance of bridge decks and in turn increases service life expectations. This paper summarizes this study and the results.


ASCE Subject Headings:
Bridge decks
Concrete admixtures
Cracking
High-strength concrete
Performance characteristics