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    Influence of Loading Time on High-Temperature Stability of Asphalt Mixtures

    Source: Journal of Highway and Transportation Research and Development (English Edition):;2014:;Volume ( 008 ):;issue: 003
    Author:
    Li Jiang
    ,
    Yan Er-hu
    DOI: 10.1061/JHTRCQ.0000391
    Publisher: American Society of Civil Engineers
    Abstract: Compared with flat slope sections of asphalt pavement, the loading time of low-speed vehicle load to uphill sections with long and large longitudinal slope is much longer, under the comprehensive combination of heavy load and high temperature. Developing and forming speed of rutting on uphill sections with long and large longitudinal slope is faster. Rutting factor and dynamic modulus of asphalt and asphalt mixture under different loading time will be calculated and analyzed in this paper. The results show that rutting factor and dynamic modulus were substantially reduced. Using the new rutting test equipments with the changing wheel speed and load to simulate the influences of overload and temperature (loading time) on asphalt mixture, the results show that dynamic stability is rapidly declined with the decrease of wheel speed. The loading time has vital influence on the high temperature stability of asphalt mixture. Increasing load time is equivalent to raising the experimental temperature, and using the temperature conditions in specification to verify the high temperature stability of asphalt mixture for uphill sections with long and large longitudinal slope is unreasonable.
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      Influence of Loading Time on High-Temperature Stability of Asphalt Mixtures

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    http://yetl.yabesh.ir/yetl1/handle/yetl/82729
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    contributor authorLi Jiang
    contributor authorYan Er-hu
    date accessioned2017-05-08T22:33:57Z
    date available2017-05-08T22:33:57Z
    date copyrightSeptember 2014
    date issued2014
    identifier other49767484.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/82729
    description abstractCompared with flat slope sections of asphalt pavement, the loading time of low-speed vehicle load to uphill sections with long and large longitudinal slope is much longer, under the comprehensive combination of heavy load and high temperature. Developing and forming speed of rutting on uphill sections with long and large longitudinal slope is faster. Rutting factor and dynamic modulus of asphalt and asphalt mixture under different loading time will be calculated and analyzed in this paper. The results show that rutting factor and dynamic modulus were substantially reduced. Using the new rutting test equipments with the changing wheel speed and load to simulate the influences of overload and temperature (loading time) on asphalt mixture, the results show that dynamic stability is rapidly declined with the decrease of wheel speed. The loading time has vital influence on the high temperature stability of asphalt mixture. Increasing load time is equivalent to raising the experimental temperature, and using the temperature conditions in specification to verify the high temperature stability of asphalt mixture for uphill sections with long and large longitudinal slope is unreasonable.
    publisherAmerican Society of Civil Engineers
    titleInfluence of Loading Time on High-Temperature Stability of Asphalt Mixtures
    typeJournal Paper
    journal volume8
    journal issue3
    journal titleJournal of Highway and Transportation Research and Development (English Edition)
    identifier doi10.1061/JHTRCQ.0000391
    treeJournal of Highway and Transportation Research and Development (English Edition):;2014:;Volume ( 008 ):;issue: 003
    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