Application of A New Asphalt Pavement Maintenance Agent on Yuhe Road of Chongqing

摘要

In this paper, the abilities of recovery and regeneration for aged asphalt of a new type of asphalt pavement maintenance agent are studied. The agent is applied in the construction of test section of Yuhe Road, and the pavement performances before and after the construction are compared. The test indicates that after the maintenance agent is added into aged asphalt, the penetration and ductility are effectively improved, the softening point is lowered. When the penetration depth of agent reaches 6 mm, the texture depth, friction coefficient and antiskid value are improved to some extent, the water permeability coefficient is reduced, and the appearance of pavement is improved as well, The paper provided reference for the applying curing agent of asphalt pavement to the preventive maintenance system.