INCREASING DURABILITY OF DECKS USING CLASS HP CONCRETE
Historically, bridge decks constructed of Class E and H concrete mixtures developed by the New York State Department of Transportation have had a propensity for spalling and cracking due to reinforcing bar corrosion attributed to the infiltration of deicing salts used in winter highway maintenance. To deal with this problem, a Bridge Deck Task Force was formed with the aim of increasing the service life of New York's bridge decks. The Task Force determined that significant improvement would result from a concrete mixture that reduced permeability and the potential for cracking. This new mixture, a variation of Class H concrete designated as Class HP, has a reduced water-cement ratio and includes 2 pozzolanic substitutions for a portion of the portland cement. This paper describes the results of a study that compared the performance and durability of bridge decks constructed of the Class HP concrete mixture to those using other concrete mixtures.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/4163061
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Corporate Authors:
American Concrete Institute (ACI)
38800 Country Club Drive
Farmington Hills, MI United States 48331 -
Authors:
- Alampalli, S
- Owens, F
- Publication Date: 2000-7
Language
- English
Media Info
- Features: References; Tables;
- Pagination: p. 33-35
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Serial:
- Concrete International
- Volume: 22
- Issue Number: 7
- Publisher: American Concrete Institute (ACI)
- ISSN: 0162-4075
Subject/Index Terms
- TRT Terms: Admixtures; Bridge decks; Bridges; Concrete construction; Cracking of concrete pavements; Deicing chemicals; Durability; Highway transportation; Permeability; Portland cement concrete; Pozzolan; Service life; Spalling; State departments of transportation; Winter maintenance
- Geographic Terms: New York (State)
- Subject Areas: Bridges and other structures; Design; Highways; Materials; I24: Design of Bridges and Retaining Walls; I32: Concrete;
Filing Info
- Accession Number: 00797644
- Record Type: Publication
- Files: TRIS
- Created Date: Aug 15 2000 12:00AM