Asphalt mixture water stability tester

The utility model discloses an asphalt mixture water stability tester, which relates to the field of asphalt mixture water stability evaluation devices, and comprises a tester, a heating device, a freezing device, a supercharging device and a circulating device, the tester comprises a body and a screw rod, the heating device comprises a heat source base and a heat source generator, the refrigerating device comprises a cold source base and a cold source generator, the cold source generator is mounted on the surface of the other side of the cold source base, the pressurizing device comprises a piston rod and a pressure piston, the piston rod is rotatably matched with the first through hole, and the circulating device comprises a water inlet pipe and a water outlet pipe. According to the utility model, the heat conduction pipe is used for heating water, the cold conduction pipe is used for refrigerating the water, and the pressurizing turntable is rotated to enable the pressure piston to move downwards to increa