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    Unified Strength Models of an Asphalt Mixture under Different Temperatures and Three-Dimensional Stresses

    Source: Journal of Materials in Civil Engineering:;2020:;Volume ( 032 ):;issue: 011
    Author:
    Tuo Huang
    ,
    Mi Li
    ,
    Yi Yang
    ,
    Jing Xie
    ,
    Hongfu Liu
    ,
    Hui Yao
    ,
    Qing Xu
    ,
    Shuai Qi
    DOI: 10.1061/(ASCE)MT.1943-5533.0003419
    Publisher: ASCE
    Abstract: The goal of this paper is to reveal the influence of temperatures on the triaxial strength of asphalt mixtures. The triaxial compression and triaxial tensile tests, as well as plane tensile and compression/axial tensile tests, which were developed by the self-developed triaxial test equipment to carry out the complex stress state under different temperatures (5°C, 10°C, 15°C, 20°C, and 25°C), were performed on the asphalt mixture. The ultimate failure strength of the material shows that the temperature and stress state significantly affect the triaxial strength characteristics of the asphalt mixture, and the three-dimensional strength decreases by the increase in temperature. Under the triaxial compression and triaxial tensile stress state, the resistance of the octahedral shear stress increases with the hydrostatic stress. A three-dimensional strength calculation model is established based on the influence of temperature and characterization by the tensile meridian, compression meridian, and failure strength envelope. It reveals the change of failure strength envelope with increasing temperatures and decreasing hydrostatic stress under complex stress state. It provides experimental and theoretical references to the design of asphalt pavement structure of different temperature conditions according to the three-dimensional stress state.
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      Unified Strength Models of an Asphalt Mixture under Different Temperatures and Three-Dimensional Stresses

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4267358
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    contributor authorTuo Huang
    contributor authorMi Li
    contributor authorYi Yang
    contributor authorJing Xie
    contributor authorHongfu Liu
    contributor authorHui Yao
    contributor authorQing Xu
    contributor authorShuai Qi
    date accessioned2022-01-30T20:55:30Z
    date available2022-01-30T20:55:30Z
    date issued11/1/2020 12:00:00 AM
    identifier other%28ASCE%29MT.1943-5533.0003419.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4267358
    description abstractThe goal of this paper is to reveal the influence of temperatures on the triaxial strength of asphalt mixtures. The triaxial compression and triaxial tensile tests, as well as plane tensile and compression/axial tensile tests, which were developed by the self-developed triaxial test equipment to carry out the complex stress state under different temperatures (5°C, 10°C, 15°C, 20°C, and 25°C), were performed on the asphalt mixture. The ultimate failure strength of the material shows that the temperature and stress state significantly affect the triaxial strength characteristics of the asphalt mixture, and the three-dimensional strength decreases by the increase in temperature. Under the triaxial compression and triaxial tensile stress state, the resistance of the octahedral shear stress increases with the hydrostatic stress. A three-dimensional strength calculation model is established based on the influence of temperature and characterization by the tensile meridian, compression meridian, and failure strength envelope. It reveals the change of failure strength envelope with increasing temperatures and decreasing hydrostatic stress under complex stress state. It provides experimental and theoretical references to the design of asphalt pavement structure of different temperature conditions according to the three-dimensional stress state.
    publisherASCE
    titleUnified Strength Models of an Asphalt Mixture under Different Temperatures and Three-Dimensional Stresses
    typeJournal Paper
    journal volume32
    journal issue11
    journal titleJournal of Materials in Civil Engineering
    identifier doi10.1061/(ASCE)MT.1943-5533.0003419
    page12
    treeJournal of Materials in Civil Engineering:;2020:;Volume ( 032 ):;issue: 011
    contenttypeFulltext
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