Device and method for testing early thermal expansion coefficient of concrete based on suspension method

The invention relates to a device and a method for testing an early thermal expansion coefficient of concrete based on a suspension method. The device comprises a corrugated pipe test mould for pouring concrete to be tested to form a concrete corrugated pipe test piece, a plurality of rope rings for suspending the concrete corrugated pipe test piece, a device base for suspending the rope rings, a temperature measurement device used for measuring the temperature change of the concrete in the corrugated pipe test mould and having the measurement end of a first thermocouple wire buried in the corrugated pipe test mould, a deformation measurement device for measuring the deformation amount of the concrete corrugated pipe test piece, and a temperature control box used for adjusting the temperature of a test environment and in which a suspension position of the concrete corrugated pipe test piece is located. According to the method, the concrete corrugated pipe test piece is suspended by adopting the device to measure the early thermal expansion coefficient of the concrete. According to the test device and the test method, the friction between the test piece and the test device is effectively reduced, the test precision is improved, the operation is simple, and the using effect is good.