Experimental device for repairing concrete by electrochemical deposition

Abstract

The invention provides an electrochemical deposition repairing concrete test device. The electrochemical deposition repairing concrete test device comprises a reaction container, a power supply, a loading unit, a lifting support and an anode plate, wherein the reaction container contains a solution for test, the top of the reaction container is provided with a solution inlet, and the bottom of the reaction container is provided with a solution outlet; the power supply is arranged outside the reaction container, and a negative pole of the power supply is connected with reinforcing steel bars in reinforced concrete test pieces; the loading unit is used for clamping the reinforced concrete test pieces and exerting pressure loads on the end portions of the reinforced concrete test pieces; the lifting support comprises a supporting platform and a supporting base, the loading unit is placed on the supporting platform, the supporting base is arranged on a weighing device, and the supporting platform is connected with the supporting base through a lifting rod with the adjustable length; the anode plate is fixedly arranged on the inner wall of the reaction container and is connected with the anode of the power supply. The test device can exert the pressure loads on the test pieces in a simulated mode, repairing results through a test have higher reference value on actual engineering, meanwhile, accuracy of the electrochemical deposition repairing concrete test is improved, the test workload is reduced, and test efficiency is improved.

Description

technical field [0001] The invention relates to a test device, in particular to a test device for repairing concrete by electrochemical deposition. Background technique [0002] The electrochemical deposition repair concrete technology uses the deposition products produced by the cathode (rebar) to fill the cracks in the concrete structure, which is suitable for the crack repair of the existing structure in the water environment. In view of the difficult characteristics of the current underground concrete structures (such as tunnels), it is of great significance to explore the application of electrochemical deposition repair technology in the repair of cracks in existing underground structures. [0003] Internationally, since the late 1980s, Japan began to use electrochemical deposition to repair marine concrete structures. The steel bars in the marine concrete structures with cracks were used as cathodes, and insoluble anodes were placed in seawater at the same time. A wea...

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Problems solved by technology

In addition, the current experimental devices for repairing concrete by electrochemical deposition cannot monitor the quality change of the specimen during the repair process at any time, and it is difficult to judge the time to stop the repair; it is impossible to adjust the electrode (anode) and the specimen to be repaired (cathode) at any time distance, the solution cannot be replaced at any time, which affects the accuracy of the test results and increases the workload of the test

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