Study Methods On Frozen-Stability For Conventional Materials Of Roadbed And Road Surface

The asphalt pavement crack has been troubled by domestic and foreign engineering road one of the main issues, but also all countries in the world there is a common phenomenon in a variety of reasons the formation of local roads in the Depression, leading to the road network happen with the pit-and seriously affect The quality of the traffic movement and reduce the service life of the pavement. On the other hand, in the spring of seasonal freezing and thawing of frozen areas affected, resulting in road, the road diseases, and further speed up the road surface damage. As a result, improve the road, the road of stability in the performance of frozen asphalt pavement design is an important content of the study.Paper is divided into four chapters, each chapter are as follows:The first chapter discusses the main purpose of this study and significance, at the same time introduced a quarter of cold asphalt pavement surface areas at home and abroad to study and application of the status quo.The second chapter focuses on the freeze-thaw cycle of low-temperature asphalt mixture performance by the pilot study taking into account low-temperature asphalt mixture evaluation should take into account the role of freezing and thawing. The third chapter of this chapter in accordance with the second semi-rigid material gray gravel and cement, gravel and reasonable stability of the antifreeze test method for freezing the indicators.The forth chapter of the target area of frozen soil roadbed used to study the natural environment in its density, humidity and the carrying capacity of changes to the environment and road carrying capacity of between one to quantify changes in the relationship, making land-based Modulus of the region to determine more specific.