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    Monitoring and Modeling the Variations of Structural Behavior of a Flexible Pavement Structure during Freezing

    Source: Journal of Cold Regions Engineering:;2016:;Volume ( 030 ):;issue: 004
    Author:
    Junyan Yi
    ,
    Guy Doré
    ,
    Jean-Pascal Bilodeau
    DOI: 10.1061/(ASCE)CR.1943-5495.0000107
    Publisher: American Society of Civil Engineers
    Abstract: This paper presents the results of a study carried out to monitor the structural behavior of a flexible pavement in cold regions, which is significantly affected by environmental factors and traffic loads. In this study, a heavy vehicle simulator was used to simulate traffic load and to provide enough cooling energy to create a freezing environment. The mechanical response of the typical Quebec flexible pavement structure during freezing was investigated using this research tool. An empirical model was also proposed and validated to describe the effect of each pavement layer on the mechanical behavior variation during freezing. The results show that the changes of moisture content and matric suction for unbound materials have a good correlation with the frost state of surrounding materials. The mechanical responses, including strains and stress, experience a regular variation along with the increase of frost penetration. The model indicates that the asphalt layer is playing a significant role in all the mechanical response variations. As for the role of other layers, the mechanical response variation for a given layer is mostly dependent on its condition and its neighboring layers.
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      Monitoring and Modeling the Variations of Structural Behavior of a Flexible Pavement Structure during Freezing

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4245275
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    contributor authorJunyan Yi
    contributor authorGuy Doré
    contributor authorJean-Pascal Bilodeau
    date accessioned2017-12-30T13:04:05Z
    date available2017-12-30T13:04:05Z
    date issued2016
    identifier other%28ASCE%29CR.1943-5495.0000107.pdf
    identifier urihttp://138.201.223.254:8080/yetl1/handle/yetl/4245275
    description abstractThis paper presents the results of a study carried out to monitor the structural behavior of a flexible pavement in cold regions, which is significantly affected by environmental factors and traffic loads. In this study, a heavy vehicle simulator was used to simulate traffic load and to provide enough cooling energy to create a freezing environment. The mechanical response of the typical Quebec flexible pavement structure during freezing was investigated using this research tool. An empirical model was also proposed and validated to describe the effect of each pavement layer on the mechanical behavior variation during freezing. The results show that the changes of moisture content and matric suction for unbound materials have a good correlation with the frost state of surrounding materials. The mechanical responses, including strains and stress, experience a regular variation along with the increase of frost penetration. The model indicates that the asphalt layer is playing a significant role in all the mechanical response variations. As for the role of other layers, the mechanical response variation for a given layer is mostly dependent on its condition and its neighboring layers.
    publisherAmerican Society of Civil Engineers
    titleMonitoring and Modeling the Variations of Structural Behavior of a Flexible Pavement Structure during Freezing
    typeJournal Paper
    journal volume30
    journal issue4
    journal titleJournal of Cold Regions Engineering
    identifier doi10.1061/(ASCE)CR.1943-5495.0000107
    page04016004
    treeJournal of Cold Regions Engineering:;2016:;Volume ( 030 ):;issue: 004
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian