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    Central Peeling Failure Behavior of Polymer Cement Mortar Retrofitting of Reinforced Concrete Beams

    Source: Journal of Materials in Civil Engineering:;2005:;Volume ( 017 ):;issue: 002
    Author:
    Kouichi Satoh
    ,
    Katsumi Kodama
    DOI: 10.1061/(ASCE)0899-1561(2005)17:2(126)
    Publisher: American Society of Civil Engineers
    Abstract: Polymer cement mortar (PCM) retrofitting is one of the largely used strengthening methods for repairing fatigue deteriorated highway bridge slabs in Japan. In this method, reinforcing bars are arranged underneath the lower surface of the slab and polymer cement mortar is sprayed onto them. Debonding of the PCM overlay is one of the major causes leading to failure of the repaired slabs. This paper mainly discusses this failure mechanism, its initiation, and suggests a method for quantitative analysis of the failure behavior. The stress transfer mechanism was measured using the strain distribution in the strengthening bars and a relationship for the bonding strength was obtained. Hence the relationship for the peeling load was obtained.
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      Central Peeling Failure Behavior of Polymer Cement Mortar Retrofitting of Reinforced Concrete Beams

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    contributor authorKouichi Satoh
    contributor authorKatsumi Kodama
    date accessioned2017-05-08T21:17:48Z
    date available2017-05-08T21:17:48Z
    date copyrightApril 2005
    date issued2005
    identifier other%28asce%290899-1561%282005%2917%3A2%28126%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/46012
    description abstractPolymer cement mortar (PCM) retrofitting is one of the largely used strengthening methods for repairing fatigue deteriorated highway bridge slabs in Japan. In this method, reinforcing bars are arranged underneath the lower surface of the slab and polymer cement mortar is sprayed onto them. Debonding of the PCM overlay is one of the major causes leading to failure of the repaired slabs. This paper mainly discusses this failure mechanism, its initiation, and suggests a method for quantitative analysis of the failure behavior. The stress transfer mechanism was measured using the strain distribution in the strengthening bars and a relationship for the bonding strength was obtained. Hence the relationship for the peeling load was obtained.
    publisherAmerican Society of Civil Engineers
    titleCentral Peeling Failure Behavior of Polymer Cement Mortar Retrofitting of Reinforced Concrete Beams
    typeJournal Paper
    journal volume17
    journal issue2
    journal titleJournal of Materials in Civil Engineering
    identifier doi10.1061/(ASCE)0899-1561(2005)17:2(126)
    treeJournal of Materials in Civil Engineering:;2005:;Volume ( 017 ):;issue: 002
    contenttypeFulltext
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