Management and preventive maintenance countermeasures of airport asphalt pavement

In order to improve the service life of airport asphalt pavement and reduce the expenses of maintenance and management, different types, characteristics and actual application status of several asphalt pavements were analyzed, main influencing factors and damage mechanisms were studied, and relevant countermeasures of management and preventive maintenance were put forward.Analysis result shows that constituting strict management mechanisms, forbiding overload, enhancing daily maintenance and training pilots to use pavement reasonably are effective methods to reduce pavement damage; thin surface repair methods of topdressing and covering with modified asphalt mortar are put forward for existing damage styles; based on climate characteristics in different seasons, the change laws of water and temperature conditions, and the principle of putting prevention first and combining prevention with treatment, efficient technical measures aiming at local conditions are taken for seasonal pavement damage, seasonal maintenance work should be done well; enhancing pavement status evaluation, taking optimal maintenance occasion and constituting reasonable maintenance standards can effectively improve the service performance of airport asphalt pavement.