Simple Analysis on the Preventive Maintenance Countermeasure for Asphalt Pavement of High Grade Highway

The Paper analyzes the preventive maintenance status of asphalt pavement at home and abroad in recent years.Based on the road structure and time curve,the Paper proposes preventive maintenance countermeasure,including selection of suitable pavement and optimum preventive maintenance time etc.In the paper,the preventive maintenance technology has also been analyzed,so as to determine the optimum preventive maintenance program.