Concrete test device and method based on load-corrosion coupling action

A concrete test device based on a load-corrosion coupling action, comprising a reactor box, wherein a reaction chamber and a load chamber that are airtightly isolated from each other are disposed in the reactor box;

• a reaction assembly capable of generating a corrosive gas is disposed in the reaction chamber, and the reaction assembly causes the corrosive gas to diffuse to fill an internal space of the reaction chamber;
• a plurality of load molds are disposed in the reaction chamber, and the load molds are used to carry a concrete specimen and expose the concrete specimen to the corrosive gas;
• and
• a plurality of power assemblies capable of applying a mechanical load are disposed in the load chamber, and output ends of the power assemblies extend into the reaction chamber and are connected to corresponding load molds for applying a force towards a surface of the concrete specimen being corroded;
• each power assembly comprises a screw rod which is driven to rotate by a power source and a transmission block which moves reciprocally in an axial direction along the screw rod;
• a synchronizing sleeve is sleeved outside the transmission block, and the transmission block drives the synchronizing sleeve to rotate and move up and down;
• a plurality of rollable rolling members are disposed in the synchronizing sleeve;
• a load block for applying a load to the concrete specimen is sleeved outside the synchronizing sleeve, and the load block moves up and down with the synchronizing sleeve;
• and the rolling members are connected to the load block in a rollable manner.