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    Proposed Behavioral Model for Deicer Scaling Resistance of Slag Cement Concrete

    Source: Journal of Materials in Civil Engineering:;2010:;Volume ( 022 ):;issue: 004
    Author:
    Irene K. Battaglia
    ,
    Jose F. Muñoz
    ,
    Steven M. Cramer
    DOI: 10.1061/(ASCE)MT.1943-5533.0000029
    Publisher: American Society of Civil Engineers
    Abstract: This study was performed to define and evaluate specific mechanisms that control deicer scaling (freeze-thaw) resistance in slag cement concrete. Modified ASTM C672 procedures were used to measure the deicer scaling resistance of concrete made with grade 120 slag cement substituted for ordinary portland cement at equal mass replacement levels of 30 and 50%. Two types of coarse aggregate, two Type I portland cement brands, and several curing methods were studied. The effects of carbonation were found to be a main cause of reduced scaling resistance in slag cement concrete, as supported by trends among curing methods and by variations in the chemical composition of portland cement. For concrete cured under ambient and low-carbonation conditions, increased carbonation is correlated with an increase in the concrete’s scaling loss. These experimental results supported a proposed behavioral model linking cement hydration, concrete carbonation, and deicer scaling resistance. Decreased scaling resistance in concrete cured under moist conditions did not correlate with carbonation, but was likely caused by other factors related to continuous moisture present during curing.
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      Proposed Behavioral Model for Deicer Scaling Resistance of Slag Cement Concrete

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    http://yetl.yabesh.ir/yetl1/handle/yetl/66368
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    • Journal of Materials in Civil Engineering

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    contributor authorIrene K. Battaglia
    contributor authorJose F. Muñoz
    contributor authorSteven M. Cramer
    date accessioned2017-05-08T21:55:04Z
    date available2017-05-08T21:55:04Z
    date copyrightApril 2010
    date issued2010
    identifier other%28asce%29mt%2E1943-5533%2E0000062.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/66368
    description abstractThis study was performed to define and evaluate specific mechanisms that control deicer scaling (freeze-thaw) resistance in slag cement concrete. Modified ASTM C672 procedures were used to measure the deicer scaling resistance of concrete made with grade 120 slag cement substituted for ordinary portland cement at equal mass replacement levels of 30 and 50%. Two types of coarse aggregate, two Type I portland cement brands, and several curing methods were studied. The effects of carbonation were found to be a main cause of reduced scaling resistance in slag cement concrete, as supported by trends among curing methods and by variations in the chemical composition of portland cement. For concrete cured under ambient and low-carbonation conditions, increased carbonation is correlated with an increase in the concrete’s scaling loss. These experimental results supported a proposed behavioral model linking cement hydration, concrete carbonation, and deicer scaling resistance. Decreased scaling resistance in concrete cured under moist conditions did not correlate with carbonation, but was likely caused by other factors related to continuous moisture present during curing.
    publisherAmerican Society of Civil Engineers
    titleProposed Behavioral Model for Deicer Scaling Resistance of Slag Cement Concrete
    typeJournal Paper
    journal volume22
    journal issue4
    journal titleJournal of Materials in Civil Engineering
    identifier doi10.1061/(ASCE)MT.1943-5533.0000029
    treeJournal of Materials in Civil Engineering:;2010:;Volume ( 022 ):;issue: 004
    contenttypeFulltext
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