Preventive Maintenance Measures and Its Implementation of Asphalt Pavement of Expressway

Preventive maintenance is very important to the asphalt pavement of expressway.With the introduction of several types of preventive maintenance treatments used in asphalt pavement,the performance of an expressway asphalt pavement is taken as an example.By the analysis of the diseases characteristic and its growing tendency,the proper preventive maintenance treatments are applied at the right time according to the decision-making matrix of preventive maintenance,and the maintenance result is satisfying.It can provide reference for relating theoretical research and engineering practice.