Research Progress on Influencing Factors and Preventive Measures of Asphalt Aging for Highways
Currently,asphalt is the main pavement structure in domestic highway engineering.Preventing asphalt aging can help extend the service life of pavement structures and reduce the operation and maintenance costs of highway engineering.A systematic review and summary of the influencing factors of asphalt material aging were conducted,and the factors affecting asphalt material aging were discussed from the aspects of moisture,thermal oxidation,ultraviolet radiation,air oxidation,etc.It was pointed out that high temperature and strong ultraviolet radiation can lead to rapid aging of asphalt,and air oxidation is the main cause of asphalt aging.It is suggested that in the practice of highway engineering,the problem of asphalt aging can be alleviated and the service life of pavement structures can be extended through methods such as inert gas protection,use of modified asphalt,optimization of asphalt production process,and reasonable standardization of highway drainage design.
国家科技期刊平台
NSTL
万方数据
