Density testing device for asphalt mixture test piece formed by wheel rolling method

The utility model provides a density testing device for an asphalt mixture test piece formed by a wheel rolling method. The density testing device is characterized by comprising a supporting frame, a main water tank, an auxiliary water tank and a weighing device, the supporting frame comprises a bottom plate and a top plate. The main water tank is fixedly arranged on the bottom plate, the auxiliary water tank is arranged on the outer side face of the side wall of the main water tank, and the weighing device is arranged on the top plate. The weighing device comprises an electronic balance and a mesh basket; a lifting dewatering device is arranged in an inner cavity of the main water tank and comprises a lifting mechanism and a rotary driving device; the auxiliary water tank is communicated with the lower portion of the side wall of the main water tank through an overflow hole formed in the lower portion of the side wall, and a temperature control device used for controlling the water temperature is arranged in