The Research Of Preventive Maintenance And Management Decisions Of Expressway Asphalt Pavement

At present, the development of highway in our country are from the massive construction to maintenance phase shift, in highway pavement maintenance phase, to achieve scientific, high efficiency, saving the maintenance operation, ensure smooth highway running to meet the needs of road users and road managers, we must strengthen preventive maintenance management technology popularization and application.In view of the current domestic and foreign status quo of highway asphalt pavement preventive maintenance, the study of this topic mainly from six parts, respectively:(1) Through the analysis of the concept of expressway asphalt pavement preventive maintenance, points out the significance of for preventive maintenance of asphalt pavement, analyzes the characteristics and principles of preventive maintenance.(2) Describes the expressway asphalt roadbed adapt properties and detection methods, puts forward the pavement performance evaluation system,and to explore the prediction method of pavement performance.(3) Summarized the current application of preventive maintenance technology at home and abroad, mainly including fracture packing type, surface coating, seal, seal, finish, and the maintenance and technical performance of the materials used and the construction technology study.(4) Combing with four typical engineering projects to study the decisions of asphalt pavement preventive maintenance measures, including the determination of curing time, curing measures, the choice of maintenance decision-making influence factors and principles, and how to reasonable maintenance decisions.Through this topic research, this paper analyses how to implementthe scientific and rational preventive maintenance methods. The application of technology provided important theoretical and practical guiding significance to highway preventive maintenance in our country.