中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2007, Vol. 26 ›› Issue (2): 72-74.

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SBR改性沥青混合料紫外光照老化分析

吴欢,梁乃兴   

  1. 重庆交通大学土木建筑学院,重庆 400074
  • 收稿日期:2006-02-28 修回日期:2015-01-22 出版日期:2007-04-15 发布日期:2015-01-22
  • 作者简介:吴欢(1981—),男,宁厦银川市人,硕士生,主要从事路基及路面设计方法与理论的研究.

Analysis of the Ultraviolet Aging of SBR M odified Asphalt Mixture

WU Huan;LIANG Nai-xing   

  1. School of Civil Engineering&Architecture,Chongqing Jiaotong Unirersity,Chongqing 400074,China
  • Received:2006-02-28 Revised:2015-01-22 Online:2007-04-15 Published:2015-01-22

摘要: 介绍了在室内使用紫外线高压汞灯在散铺情况下对热拌沥青混合料进行光照老化对比实验。用此模拟热拌沥 青混合料在西藏地区室外光照下老化情况.试验中利用不同时照的紫外线老化。SBR改性沥青混和料与基质沥青混 合料的劈裂强度变化,反映出沥青混合料随时间变化的规律.试验中改性沥青混合料表现出更好的抗紫外线老化 性.说明在西藏地区使用改性沥青具有更好的路用性能.

关键词: 道路, SBR改性沥青, 紫外线老化, 劈裂强度

Abstract: The illumination aging contrastive test of the hot asphalt mixture is introduced on the condition of scattered pavement by using ultraviolet hish-pressure mercury lamps,which simulates the aging circs ofthe hot asphalt mixture illuminated outside in Tibet.The changes of cleavage strength of SBR modified asphalt mixture and base asphalt mixture can reflect the rule that the asphalt mixture changes with time by using ultraviolet aging at diferent time.The test validates that SBR medifled asphalt mixture has beter capability to withstand ultraviolet aging.It shows that SBR modified asphalt mixture pogges~ beter road property in Tibet.

Key words: road, SBR modified asphalt, ultraviolet aging, cleavage strength

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