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首页> 外文会议>Global Congress on Construction, Material and Structural Engineering >Marshall properties and rutting resistance of hot mix asphalt with variable reclaimed asphalt pavement (RAP) content
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Marshall properties and rutting resistance of hot mix asphalt with variable reclaimed asphalt pavement (RAP) content

机译：热混合沥青的马歇尔特性和车辙抗变量再生沥青路面（RAP）含量

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摘要

Hot mix recycling is the process in which reclaimed asphalt pavement (RAP) materials are combined with new materials to produce hot mix asphalt mixtures. This paper details a laboratory study in which the effects of different RAP contents were evaluated on the performance of hot recycled mixes. The objective of this study is to evaluate the rutting resistance of asphalt mixes containing different percentages of RAP. The Marshall mix design method was adopted in this study to determine the OBC for the asphalt mixes containing four aggregate combinations with RAP contents of 0% (control), 15%, 25% and 35%. Volumetric analysis was performed to ensure that the result is compliance with specification requirements. The resilient modulus test was performed to measure the stiffness of the mixes while the Hamburg wheel tracking test was used to evaluate the rutting performance of these mixes. The results obtained showed that there were no substantial differences in volumetric properties, stability values and stiffness properties between the control mix and recycle mixes. It can be concluded that recycled mixes performed as good as the performance of conventional Hot Mix Asphalt (HMA) in terms of resilient modulus and rutting.
机译：热混合回收是该过程中，再生沥青路面（RAP）材料与新材料结合以产生热混合沥青混合物。本文详述了实验室研究，其中评价了不同RAP内容物的影响对热再循环混合物的性能。本研究的目的是评估含有不同百分比RAP的沥青混合物的车辙抗性。本研究采用Marshall混合设计方法，以确定沥青混合物的欧博姆，含有四种聚集组合的沥青混合物，清震含量为0％（对照），15％，25％和35％。进行体积分析以确保结果符合规范要求。进行弹性模量试验以测量混合物的刚度，同时使用汉堡轮跟踪试验来评估这些混合物的车辙性能。得到的结果表明，对照混合物和再循环混合物之间的体积性质，稳定性值和刚度特性没有显着差异。可以得出结论，在弹性模量和车辙方面，再循环混合物与常规热混合沥青（HMA）的性能一样好。

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