Study On The Surface Texture Reconstrution Technology Of Existing Portland Cement Concrete Pavement

Cement concrete pavement has developed rapidly in recent years in China, so that it has gradually become an important choice in road construction. But as the traffic load and environmental factors constantly work, concrete road surface functional defects of sliding is less and the deterioration of smoothness affect the ride comfort and safety seriously, therefore, how to effectively improve the existing concrete pavement surface texture, restore and improve the performance of the road is imminent.This study compared the different surface texture modification techniques of existing concrete pavement by gray theory to prove diamond grinding pavement is the optimal program which has excellent slip resistance, noise reduction and durability. By studying the sliding mechanism, performance of noise and durability of grinding concrete pavement, analysis grinding blade parameters on performance of grinding pavement, So as to enhance existing cement concrete pavement skid resistance, reduce noise and improve the durability. Through analysis of road anti-sliding properties and the friction between tire-pavement, the anti-sliding mechanisms of ground PCC pavement are obtained using three-component model. According to the analysis on tire-pavement noise generation mechanism and some influenced factors, noise characteristics of the grinding surface has been studied. Moreover, proposed noise reduction mechanism of grinding pavement.Analysis attenuation law of the skid resistance and predicate service life by accelerated test.Combination of foreign research presently and physical construction, analyzing the diamond grinding concrete pavement construction technology and key technology.