Pan Jingsheng, Zhao Hua, Wang Yong, Liu Gang
College of Water and Architectural Engineering, Shihezi University, Shihezi 832003, China.
State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China.
Materials (Basel). 2021 Sep 24;14(19):5523. doi: 10.3390/ma14195523.
The influence of sand accumulation on the skid resistance of asphalt pavement was studied. Many scholars have researched the anti-skid performance of conventional asphalt pavements. However, there is a lack of research on the anti-skid performance of desert roads under the condition of sand accumulation. In this study, AC-13 and AC-16 asphalt mixtures were used. The British Pendulum Number (BPN) under different sand accumulations was measured with a pendulum friction coefficient meter, and the Ames engineering texture scanner was used to obtain different sand accumulations. The texture index of asphalt mixture was used to study the macro and micro texture of asphalt pavement under different amounts of sand accumulation, and the degree of influence of different particle sizes on BPN was obtained through gray correlation analysis. The test results show that the presence of aeolian sand has a significant impact on the macro and micro texture of the asphalt pavement and will cause the anti-skid performance to decrease. Moreover, there is an apparent positive linear correlation between the road surface texture index and BPN. The research results may provide reference and reference for the design and maintenance of desert highways.
研究了积沙对沥青路面抗滑性能的影响。许多学者对常规沥青路面的抗滑性能进行了研究。然而，对于积沙条件下沙漠道路的抗滑性能缺乏研究。本研究采用AC - 13和AC - 16沥青混合料。用摆式摩擦系数仪测量不同积沙量下的英国摆值（BPN），并使用埃姆斯工程纹理扫描仪获取不同的积沙量。利用沥青混合料的纹理指数研究不同积沙量下沥青路面的宏观和微观纹理，并通过灰色关联分析得到不同粒径对BPN的影响程度。试验结果表明，风积沙的存在对沥青路面的宏观和微观纹理有显著影响，并会导致抗滑性能下降。此外，路面纹理指数与BPN之间存在显著的正线性相关。研究结果可为沙漠公路的设计与养护提供参考。
