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首页> 外文会议>International conference on highway pavements and airfield technology >Experimental Study on Macrotexture of Asphalt Pavement
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Experimental Study on Macrotexture of Asphalt Pavement

机译：沥青路面宏观纹理的试验研究

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In order to better understand the evolution of the road-surface macro-texture, kneading test was conducted by using a kneading machine. The kneading machine was invented by improving a national standard rutting machine. Ten specimens were studied, which have different values in various factors (kneading temperature, aggregate gradation and aggregate type). Macrotexture measurements were carried out at different kneading times (0 hour, 2 hours, 4 hours, 6 hours, and 8 hours). The macro-texture profiles were measured by means of the Laser-measuring Technique, showing on an area of lOcmxlOcm. Two indicators, the Peak Angle and the Kneading Loss, were adopted to describe and quantify the evolution of the macro-texture.The results showed that aggregate gradation, kneading time and kneading temperature can significantly impact the skid resistance performance of asphalt pavements; Kneading will affect the distribution of Peak Angles and increase the Kneading Loss.
机译：为了更好地理解路面宏观纹理的演变，使用捏合机进行了捏合试验。捏合机是通过改进国家标准车辙机而发明的。研究了十个样本，这些样本在各种因素（捏合温度，骨料级配和骨料类型）中具有不同的值。在不同的捏合时间（0小时，2小时，4小时，6小时和8小时）进行宏观纹理测量。宏观纹理轮廓通过激光测量技术测量，显示在10cm×10cm的面积上。采用峰顶角和捏合损失两个指标来描述和量化宏观纹理的演变。结果表明，骨料的级配，捏合时间和捏合温度会显着影响沥青路面的防滑性能。捏合会影响峰角的分布并增加捏合损失。

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