Research on skid resistance performance assessment and rehabilitation decision-making technology of asphalt pavement

Abstract

In view of the lack of skid resistance of asphalt pavement of some highways, the representative section of a road were selected, combined with the analysis results of basic data and road condition data, field tests and laboratory tests were carried out to analyze the reasons for the decline of skid resistance. The attenuation law of asphalt pavement performance with traffic load was simulated by using the detection method at different positions of the road. According to the attenuation characteristics of different indexes, the evaluation methods of asphalt pavement skid resistance performance are refined. Based on the conclusions of special testing and analysis, the skid resistance performance evaluation model, road condition decay model and maintenance decision model were developed to carry out long-term maintenance planning for the road, keep the annual maintenance mileage stable during the planning period, and avoid the maintenance pressure concentrating on a few years. Combined with the current situation of road condition and attenuation law, the road condition in the planning period is predicted to prove the results of long-term maintenance planning under the decision model, which ensures the stability of the road condition level in the planning period.