Abstract:In order to analyze the effect of chip sprinkling technique on the interlaminar shear performance of chip sprinkling cement concrete(CSCC) bridge asphalt pavement structure, and also recommend the optimal chip sprinkling technique parameters, direct shearing test based on orthogonal method was designed. The effect of chip sprinkling technique parameters, such as aggregate type, aggregate gradation, aggregate spreading area ratio and aggregate pressing depth ratio, on the interlaminar shear performance of CSCC bridge asphalt pavement structure was discussed through the evaluation indexes of similar shear modulus and interlaminar shear strength. At the same time, the significance level of chip sprinkling parameters was assessed on the basis of range analysis. Laboratory test results show that the diabase with particle size of 132160mm, spreading area ratio of 80%, pressing depth ratio of 02 respectively shows better interlaminar shear performance, which corresponds to the optimal bonding oil dosage of 09L/m2. The significance level of chip sprinkling parameters ranks as follows:aggregate pressing depth ratio> aggregate particle size>aggregate spreading area ratio>aggregate type.