Study on the Skid Resistance Deterioration Behavior of the SMA Pavement

Jincheng Wei,Xiangpeng Yang,Qianwen Tan,Dawei Wang,Yulin He,Zhengchao Zhang,Markus Oeser

doi:10.3390/su14052864

Abstract

The skid resistance of asphalt pavement is of great importance to the driving safety, but deterioration of pavement skid resistance is inevitable owing to the coupling effect of traffic loading and climate conditions. The existing prediction models of skid resistance were mainly established based on the laboratory accelerated polishing tests (for instance Polished Stone Value, PSV), and these models can only consider the influence of a single factor; they fail to reflect the coupling effect of different factors under the real service condition. For the purpose of investigating the influences of seasonal variation, and aggregate type on the skid resistance of asphalt pavement, the skid resistance of three test tracks were continuously measured for 48 months through five different test methods. The results show that different test methods exhibit significant inconsistency. The aggregate type is the internal factor that determines the long-term skid resistance performance of pavement. The skid resistances of the selected test tracks were ranked as greywacke pavement > diabase pavement > rhyolite pavement. This is in well agreement with the ranking of aggregate polishing resistance obtained from the laboratory Wehner/Schulze (W/S) test. This indicates that the W/S test is effective in distinguishing the aggregates that used in pavement construction. It is also found that the skid resistance of asphalt pavement shows significant fluctuation with respect to seasonal variation. The skid resistance is generally high in autumn and low in summer. Therefore, it is suggested to use the low measurement value of skid resistance in summer as the lower limit for the evaluation and prediction of the skid resistance performance of asphalt pavement.

Highlights

Introduction published maps and institutional affilTraffic accidents have long been a great challenge all over the world, and they are affected by numerous factors including driver behavior, vehicle, pavement, and climate as well as their coupling effect
The pavement surfaces with good skid resistance can provide adhesion to the vehicle tire, which in turn provides the vehicle with sufficient driving and braking forces [4–8]
The that the underlying mechanisms of different resistance tests are not measurement was not implemented in the winter season because the determinant factor exactly the same, the sensitivities of different methods to the micro and macro-characteristics affects the skid surface resistance of asphalt but all the tests in ofthat asphalt pavement would be verypavement different. is Tosnow, fully describe theinvolved skid resistance the current study cannot describe this well

Summary

Introduction

Traffic accidents have long been a great challenge all over the world, and they are affected by numerous factors including driver behavior, vehicle, pavement, and climate as well as their coupling effect. The pavement surfaces with good skid resistance can provide adhesion to the vehicle tire, which in turn provides the vehicle with sufficient driving and braking forces [4–8]. The newly constructed asphalt pavement is always of good skid resistance, which ensures the safety of the traffic driving on it. The skid resistance of asphalt pavement would be continuously decreased because it was exposed to repeated vehicle loadings and cyclical climate changes [9–14]. Several previous research works have evidenced the seasonal variation of the skid resistance of asphalt pavement, and the asphalt pavement shows the best skid resistance in the winter and the worst in the summer [15,16].

Methods

Results

Conclusion