Reinforced concrete chlorine ion directional absorption device and method for easy installation and replacement

Abstract

The invention relates to an oriented reinforced concrete chloride ion absorption device convenient to install and change and a method. According to the device, potential difference between electrode potential and electrode potential of reinforcement in concrete exists, the device is electrically connected with the reinforcement in the concrete to form the negative electrode and positive electrode of an original battery, the device is characterized by comprising a magnesium alloy, a filling material maintaining the electrochemical activity of the magnesium alloy, and a die for containing the magnesium alloy and the filling material, wherein the die is fixedly arranged on the surface of concrete, the magnesium alloy is buried in the filling material in the die, and the filling material is directly closely contacted with the concrete. Through the device and method, chloride ions in the prestressed steel reinforcement are absorbed into the device in an oriented manner, and the service life of the prestressed steel reinforcement concrete structure can be prolonged by more than 15 years. A great amount of concrete polluted by chlorine salt is not required to be chipped away, so as to save manpower and material resources; the used equipment is low-cost; the oriented reinforced concrete chloride ion absorption device is stable in open-circuit potential, and simple and convenient to install and change.

Description

technical field [0001] The invention relates to a prestressed reinforced concrete anti-corrosion device and method, in particular to a method for directionally absorbing harmful chloride ions in the prestressed reinforced concrete into the anticorrosion protection device, and using the device to prolong the prestressed steel bars in the salt-polluted atmospheric environment Methods for the service life of concrete structures. Background technique [0002] Prestressed reinforced concrete structures, like ordinary reinforced concrete structures, suffer from serious corrosion and damage during operation, especially in environments polluted by chloride salts. [0003] For prestressed concrete structures that have been polluted by chlorine salts in the atmospheric environment, the conventional method of chiseling and repairing is currently adopted, that is, chiseling off the partially damaged concrete protective layer, exposing the internal prestressed steel bars and treating the...

AI Technical Summary

Problems solved by technology

The technical solution of the patent application is to bury the zinc grid anode in the conductive mortar to perform cathode technology on the steel bars in the concrete. The system installation is relatively complicated and cannot be replaced.

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