Self Healing Capacity of Asphalt Binders 被引量：3

Self Healing Capacity of Asphalt Binders

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摘要 To test self healing capability of asphalt binders,three asphalt specimens（pure asphalt,modified asphalt and aged asphalt） were prepared.Every specimen was tested by dynamic shear rheometer（DSR）.The temperature sweeps result indicates that both aging and SBS modifying influence the self healing capability of asphalt binder.The fatigue-heal-fatigue test was introduced to study the self healing capability of asphalt in its serving periods.Furthermore,three different periods（0.5 h,1 h,3 h） were set up to study the influence of rest time on fatigue time.It is concluded that longer rest time,less load will delay the appearance of cracks and extend the service life of asphalt binders. To test self healing capability of asphalt binders,three asphalt specimens（pure asphalt,modified asphalt and aged asphalt） were prepared.Every specimen was tested by dynamic shear rheometer（DSR）.The temperature sweeps result indicates that both aging and SBS modifying influence the self healing capability of asphalt binder.The fatigue-heal-fatigue test was introduced to study the self healing capability of asphalt in its serving periods.Furthermore,three different periods（0.5 h,1 h,3 h） were set up to study the influence of rest time on fatigue time.It is concluded that longer rest time,less load will delay the appearance of cracks and extend the service life of asphalt binders.

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机构地区 School of Science

出处《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2012年第4期794-796,共3页 武汉理工大学学报（材料科学英文版）

基金 Funded by the Scientific Research Foundation for Dr,Wuhan University of Technology,Wuhan,China

关键词 asphalt binder self healing temperature sweeps FATIGUE asphalt binder self healing temperature sweeps fatigue

分类号 U414 [交通运输工程—道路与铁道工程]

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