【作者】 杨睿；

【导师】 郝培文；

【作者基本信息】 长安大学 ， 道路与铁道工程， 2007， 硕士

【摘要】 随着国民经济的快速发展,交通量、轴载增加以及交通的渠化,多数高速公路在通车不久便产生了严重的车辙和水损害,如何有效的控制沥青路面早期破坏对于延长路面使用寿命意义重大。本文针对SBS改性沥青、特立尼达湖改性沥青组成的五种级配沥青混合料进行了体积参数、路用性能的研究。分析了掺加湖沥青后混合料体积参数变化原因并提出了适合湖沥青混合料的体积参数要求。路用性能研究表明,湖沥青能很好改善混合料的高温、水稳定性能,且随着掺量的增加,性能越好。用灰关联分析方法对车辙、剪切试验结果进行了分析,结果表明沥青结合料与级配对混合料高温性能的贡献率大致相当。通过云南思小高速公路中面层的铺筑验证了湖沥青混合料的路用性能,总结分析湖沥青混合料的施工特性、工艺等,并进行了经济效益分析,为以后湖沥青在路面工程中的运用提供了依据。更多还原

【Abstract】 With increasing of national economy, traffic volume、axial load and traffic channelization, serious rutting and water damage occurred on the heavy-duty asphalt pavements after opening to the traffic, how to effectively control the asphalt pavement premature damage is important for pavement sevice life extension.SBS modified asphalt、Trinidad Lake Asphalt modified asphalt and five gradations have been used in this paper. The volume parameter and pavement performance of different asphalt mixtures have been researched. The paper analyzes reason for variation of Trinidad Lake Asphalt mixture’s volume parameter and provides proper volume parameter for Trinidad Lake Asphalt mixture. The results show that Asphalt mixture using Trinidad Lake Asphalt can greatly improve the high temperature performance and water stability, and with increasing of Trinidad Lake Asphalt amount, the performance of Asphalt mixture becomes better. Using gray correlation analysis method to analyse the results of rutting test and direct shear test, the results show that the effects of asphalt binder and gradation on Asphalt mixture performance at high temperature is approximately same.Through Asphalt pavement construction on Si-Xiao expressway in Yunnan, the paper summarized the construction technology, performance and economic effection of Trinidad Lake Asphalt mixture and provided the guide of Trinidad Lake Asphalt application in Asphalt pavement in the future.更多还原