Freeze-thaw resistance detection device for asphalt pavement of expressway

The invention belongs to the technical field of road detection, and particularly relates to an expressway asphalt pavement freeze-thaw resistance detection device which comprises a base, a bottom thermal insulation mechanism is fixedly mounted on one side of the upper end of the base, and a bearing frame is fixedly connected to the upper end of the bottom thermal insulation mechanism; the upper end of the base is further fixedly provided with a rotary exchange mechanism located on one side of the bottom heat insulation mechanism. The cold and hot environment can be automatically and alternately manufactured for the asphalt pavement sample, the actual freezing and thawing environment can be more truly simulated, the working time and the working temperature of refrigeration and heating can be accurately regulated and controlled based on the detection requirement, the freezing and thawing frequency can be preset based on the detection requirement, and the working efficiency is improved. And an alarm is automatic