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    Bond of Reinforcement to Revibrated Concrete

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    Altowaiji_1986.pdf (611.8Kb)
    Issue Date
    1986
    Author
    Altowaiji, Wisam A. K.
    Darwin, David
    Donahey, Rex C.
    Publisher
    American Concrete Institute
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
    Published Version
    https://iri.ku.edu/reports
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    Abstract
    The effects of revibration on concrete-steel bond strength are studied. Key variables are concrete slump, bar position, and the time interval between initial vibration and revibration. No 8 (25 mm) deformed reinforcing bars were used with a 2 in. (51 mm) cover and a 10 in. (254 mm) bonded length. Concrete slumps ranged from 2 3/4 to 7 1/2 in. (70 to 190 mm). Two specimen depth were used. All specimens were modified cantilever beam specimens. The experimental results show that revibration is not universally beneficial to conrete-steel bond. Revibration appears to improve bond strength for top-cast bars placed in high-slump concrete. Revibration may, however, severely damage bond strength for bars cast in well-consolidated, low-slump concrete. Revibration is almost universally detrimental to the bond strength of bottom-cast bars. Overall, revibration tends to reduce the differences in bond strength caused by differences in slump and bar position.
    URI
    http://hdl.handle.net/1808/23424
    Collections
    • Infrastructure Research Institute Scholarly Works [331]
    Citation
    Altowaiji, W.A.K., Darwin, D., and Donahey, R.C., "Bond of Reinforcement to Revibrated Concrete," ACI Journal Vol. 83, No. 94, November-December 1986, pp. 1035-1042.

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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