Research on the Attenuation Law and Improvement Measures of Highway Pavement Skid Resistant Performance
With the increase of road age and traffic load,the problem of insufficient skid resistant performance of highway pavement has become increasingly prominent.By analyzing the affecting factors of skid resistant perfor-mance of pavement and statistically analyzing a large amount of on-site inspection data,traffic levels,pavement structures of highways,research is conducted on the skid resistant performance of pavement with different types of mixtures,traffic levels,lanes,and maintenance measures.The research results indicate that the larger the traffic volume and the higher the proportion of trucks,the faster the skid resistant performance of the pavement deterio-rates;There are significant differences in the skid resistant performance of the pavement between each lane of the expressway,namely the SFC attenuation rate of the first lane is lower than that of the second and third lanes;Com-pared with AK-13 and PAC-13 pavements,SMA-13 pavement maintains better skid resistant performance and keeps better;After different maintenance measures,according to the degradation rate of pavement skid resistant performance,the order is in-situ thermal regeneration＞thin layer overlay＞ultra-thin wear layer＞ordinary over-lay.In terms of economic benefits,according to the PVC value,the order is ordinary overlay＞in-situ thermal re-generation＞thin layer overlay＞micro surface＞ultra-thin wear layer,and the economic benefits of ultra-thin wear layer are the best;For road sections with insufficient skid resistant performance and relatively severe road surface damage and rutting diseases,maintenance techniques such as thin layer overlay and in-situ thermal regeneration can be adopted.For road sections with insufficient skid resistant performance and slight rutting defects,ultra-thin wear layer and thin layer overlay maintenance techniques can be adopted.For road sections with insufficient skid re-sistant performance,ultra-thin wear layer and micro surface maintenance measures can be adopted.
万方数据
维普
