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    Effects of Epoxy Resin Content on Properties of Hot Mixing Epoxy Asphalt Binders

    Source: Journal of Materials in Civil Engineering:;2022:;Volume ( 034 ):;issue: 007::page 04022145
    Author:
    Jiahao Tian
    ,
    Sang Luo
    ,
    Qing Lu
    ,
    Shicheng Liu
    DOI: 10.1061/(ASCE)MT.1943-5533.0004259
    Publisher: ASCE
    Abstract: Hot-mix epoxy asphalt has superior performance as bridge deck pavement material. However, its high cost hinders the application of epoxy asphalt in road pavement. This study investigated the effects of epoxy resin contents on epoxy asphalt performance, aiming to seek out a cost-effective proportion. Specifically, the macromechanical properties, chemical compositions, and microstructure transformation of epoxy asphalt were evaluated by a tensile and viscosity test, Fourier transform infrared spectroscopy (FTIR) test, and fluorescence microscopy test, respectively. Finally, a brief cost analysis was conducted. Results indicate that when the epoxy resin content exceeds or equals 40%, both tensile strength and elongation of epoxy asphalt meet the performance requirements regulated in the specification. In addition, the enhanced epoxy resin content may also boost the viscosity-increasing rate of epoxy asphalt, especially at high temperatures. Furthermore, the areas of 1,085, 1,108, and 1,118  cm−1 wavenumbers of epoxy asphalt infrared spectrum demonstrate good positive correlations with the epoxy resin contents. Besides, according to the fluorescence microscopy test result, after the curing process, the initial spherical epoxy resin particles tend to agglomerate, and a cross-linked spatial structure may form when the epoxy resin content exceeds or equals 40 wt%. Finally, combining the performance and cost analysis, the 40 wt% epoxy resin content can achieve a good balance between the material cost and pavement performance.
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      Effects of Epoxy Resin Content on Properties of Hot Mixing Epoxy Asphalt Binders

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4286482
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    contributor authorJiahao Tian
    contributor authorSang Luo
    contributor authorQing Lu
    contributor authorShicheng Liu
    date accessioned2022-08-18T12:21:24Z
    date available2022-08-18T12:21:24Z
    date issued2022/04/25
    identifier other%28ASCE%29MT.1943-5533.0004259.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4286482
    description abstractHot-mix epoxy asphalt has superior performance as bridge deck pavement material. However, its high cost hinders the application of epoxy asphalt in road pavement. This study investigated the effects of epoxy resin contents on epoxy asphalt performance, aiming to seek out a cost-effective proportion. Specifically, the macromechanical properties, chemical compositions, and microstructure transformation of epoxy asphalt were evaluated by a tensile and viscosity test, Fourier transform infrared spectroscopy (FTIR) test, and fluorescence microscopy test, respectively. Finally, a brief cost analysis was conducted. Results indicate that when the epoxy resin content exceeds or equals 40%, both tensile strength and elongation of epoxy asphalt meet the performance requirements regulated in the specification. In addition, the enhanced epoxy resin content may also boost the viscosity-increasing rate of epoxy asphalt, especially at high temperatures. Furthermore, the areas of 1,085, 1,108, and 1,118  cm−1 wavenumbers of epoxy asphalt infrared spectrum demonstrate good positive correlations with the epoxy resin contents. Besides, according to the fluorescence microscopy test result, after the curing process, the initial spherical epoxy resin particles tend to agglomerate, and a cross-linked spatial structure may form when the epoxy resin content exceeds or equals 40 wt%. Finally, combining the performance and cost analysis, the 40 wt% epoxy resin content can achieve a good balance between the material cost and pavement performance.
    publisherASCE
    titleEffects of Epoxy Resin Content on Properties of Hot Mixing Epoxy Asphalt Binders
    typeJournal Article
    journal volume34
    journal issue7
    journal titleJournal of Materials in Civil Engineering
    identifier doi10.1061/(ASCE)MT.1943-5533.0004259
    journal fristpage04022145
    journal lastpage04022145-11
    page11
    treeJournal of Materials in Civil Engineering:;2022:;Volume ( 034 ):;issue: 007
    contenttypeFulltext
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