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    Effect of Contamination on Reinforcing Bar-Concrete Bond

    Source: Journal of Performance of Constructed Facilities:;2010:;Volume ( 024 ):;issue: 003
    Author:
    Abdeldjelil Belarbi
    ,
    David N. Richardson
    ,
    Matthew K. Swenty
    ,
    Lawrence H. Taber
    DOI: 10.1061/(ASCE)CF.1943-5509.0000091
    Publisher: American Society of Civil Engineers
    Abstract: Current specifications require the removal of reinforcing bar contaminants that reduce bond prior to placing concrete. This study focused on the interactions of contaminant type, bar size, epoxy coating, concrete strength, and test method (beam and direct pullout). The majority of the beam tests showed the bond strength was not significantly affected, with certain exceptions. However, the direct pullout tests revealed a significant reduction of bond strength in most situations. Although the bond strength was still greater than that required by code, it is recommended that specifications for removal of contaminants should not be relaxed until further study is performed.
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      Effect of Contamination on Reinforcing Bar-Concrete Bond

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    contributor authorAbdeldjelil Belarbi
    contributor authorDavid N. Richardson
    contributor authorMatthew K. Swenty
    contributor authorLawrence H. Taber
    date accessioned2017-05-08T21:37:16Z
    date available2017-05-08T21:37:16Z
    date copyrightJune 2010
    date issued2010
    identifier other%28asce%29cf%2E1943-5509%2E0000094.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/57681
    description abstractCurrent specifications require the removal of reinforcing bar contaminants that reduce bond prior to placing concrete. This study focused on the interactions of contaminant type, bar size, epoxy coating, concrete strength, and test method (beam and direct pullout). The majority of the beam tests showed the bond strength was not significantly affected, with certain exceptions. However, the direct pullout tests revealed a significant reduction of bond strength in most situations. Although the bond strength was still greater than that required by code, it is recommended that specifications for removal of contaminants should not be relaxed until further study is performed.
    publisherAmerican Society of Civil Engineers
    titleEffect of Contamination on Reinforcing Bar-Concrete Bond
    typeJournal Paper
    journal volume24
    journal issue3
    journal titleJournal of Performance of Constructed Facilities
    identifier doi10.1061/(ASCE)CF.1943-5509.0000091
    treeJournal of Performance of Constructed Facilities:;2010:;Volume ( 024 ):;issue: 003
    contenttypeFulltext
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