Analysis And Evaluation On Asphalt Pavement Effect Of Plant Mixing Hot Recycling Technology Of Liaoning Province

Plant mixing hot recycling technology belongs to recycling technology, in recent years, more and more by caused the attention of countries. It is a main technology of the maintenance of old roads, it has good economic benefits and environmental benefits and has reduce the engineering cost, with reducing the pollution of the old material, shorten the construction period, improving production efficiency, etc. Parts of Liaoning province has been applied, but to evaluation of plant mixing hot recycling technology research is still blank. How to effectively evaluation of plant mixing hot recycling technology pavement performance, it is worth further study.This paper takes asphalt pavement survey which used plant mixing hot recycling technology in Liaoning Province in recent years as the background, collecting the data of plant mixing hot recycling technology pavement condition of Liaoning province, and carrying on the evaluation of the pavement performance; based on the test and analysis of the core samples of investigated road, combining with the characteristics of road's traffic volume and vehicle load, it analyzes the causes of the disease of roads, and summarizes the existing problems in the application of hot recycling pavement; combining with other domestic hot recycling sections at the same time, it puts forward the applicable situation of plant mixing hot recycling technology, providing an important reference for our province and even our country on scientific and effective use of plant mixed hot recycling technology.Economic benefit, compare economic benefits of application of the net present value method on using and not using plant mixing hot recycling technology pavement structure. In the full life cycle, comparing plant mixing hot recycling technology with the new scheme, application of plant mixing hot recycling technology can save considerable cost, significant economic benefits?Environmental benefits, application of analytic hierarchy process analysis and evaluation of environmental benefits, according to the main environmental benefits impact factors and evaluation index system establishment principle, according to the two aspects of natural environment and social environment benefit, constructing plant mixing hot recycling technology engineering environment evaluation index system, and determine the weight of each index value.Finally, based on the above on the basis of scientific research, application of ABAQUS finite element software structural mechanics analysis of the repair schemes, using road surface deflection and pavement structure layers stress as a control index, proving the rationality of plant mixing hot recycling technology for asphalt pavement maintenance and repair, providing useful guidance to the actual pavement design...