Method for evaluating interlayer bonding strength of asphalt pavement

The invention provides a method for evaluating the interlayer bonding strength of an asphalt pavement, and belongs to the technical field of asphalt pavements. The method comprises the following steps: cutting a prepared composite rut plate, an integral rut plate and a formed composite rut plate into cubic test blocks, then keeping an included angle of 45 degrees between the cubic test blocks and the horizontal plane, testing the maximum failure load of the cubic test blocks, calculating to obtain the shear strength, recording the shear strength of the composite rut plate as tau blank group 1, and recording the shear strength of the composite rut plate as tau blank group 2; the shearing strength of the whole rut plate is recorded as a tau blank group 2, the shearing strength of the formed composite rut plate is recorded as a tau test group, and the condition that the tau blank group 1 < = tau test group < = tau blank group 2 is satisfied. The method can effectively distinguish the molded composite rut plate o