Ultraviolet aging test method for asphalt with control group

The invention provides an ultraviolet aging test method for asphalt with a control group. The ultraviolet aging test method comprises the following steps: preparing an asphalt test piece, putting the asphalt test piece into a test box body for an aging comparison test, taking out the tested asphalt test piece, testing, evaluating the anti-ultraviolet aging performance of the asphalt and the like. According to the invention, the influence of rain wash and ultraviolet on asphalt aging can be simulated, and the influence degree of thermal oxidation and ultraviolet on asphalt aging can be contrasted and researched under the condition of keeping the temperature and humidity in the whole test box body to be the same; the influence of different ultraviolet heights on asphalt aging can be simulated by adjusting the height of the loading disc; according to the method, detailed, sufficient and accurate contrast data are provided for the asphalt ultraviolet aging test, the residual penetration ratio, the ductility reten