Study On Anti-slide Performance Of Asphalt Pavement And Its Influencing Factors In Tangshan Area

With the rapid development of construction,the relationship between towns is becoming closer,and the social demand of highway construction is increasing.At the same time of road construction,the requirement of road running quality has become an indispensable lin.The detection of skid resistance is an important parts in the inspection,and the anti-skid performance of the road is related to the driving safety and ride comfort.In the technical standards of road construction in China,there are many kinds of detection methods for the skid resistance of pavement.For example,the pendulum friction tester measures the friction coefficient,measurement of skid resistance of pavement by lateral force coefficient test system,pavement depth determination by sand coating method,laser dynamic continuous acquisition system.In this paper,through the above several anti-slip performances testing method,the skid resistance of Tangshan road surface was studied.Tangshan is a heavy industrial city.There are two aspects influencing skid resist.First of all,heavy traffic destroythe road quality.This paper researched the influence of vehicle load and traffic flow on the skid resistance.Secondly,trucks loaded with goods mainly,sand,stone and other raw materials,and these materials are easy to fall on the pavement,which affected the skid resistance.In this paper,several pollutants are selected to study the change of pavement skid resistance with pollutants.The pavement structure is composed of asphalt and stone,this paper studied the influence of stone on theskid resistance performance.Due to the difference of pavement structure,the influence of different aggregate gradation on skid resistance is also studied in this paper.Tangshan city roads and county level road,and high-speed road have planning of repairing every year.That is difference after road maintenance,through monitoring on the road,the road under the actual operation status summary year anti slide performance changes and we can explore the different disposal methods of pavement maintenance.