The present invention relates to a design method of mix proportion of asphalt mixture, belonging to the design of mix proportion of asphalt mixture for asphalt pavement surface layer. Said design method includes the following steps: (1) selecting performance parameter of asphalt mixture; (2) material selection and inspection; (3) selecting test table and designing test scheme; (4) inspecting asphalt mixture volume index and performance index of every composition test scheme; (5) creating mathematical model of asphalt mixture volume and performance index and material dose relationship; (6) according to the designed asphalt mixture performance requirements analyzing said mathematical model, selecting primary mix proportion; (7) checking the asphalt film thickness; (8) inspecting construction performance of asphalt mixture; (9) inspecting asphalt mixture performance test; and (10) regulating material composition and forming construction mix proportion. |