To study the corrosion and rust inhibition effects of alkylphenol polyoxyethylene ether(APEO)at different concentrations,electrochemical tests were conducted on steel bars to investigate the influence of different APEO concen-trations on the electrochemical behavior and corrosion inhibition effect of steel bars.The results show that with the in-crease of APEO concentration,the electrochemical behavior of steel bars exhibits a three-stage change characteristics:ex-citation,inhibition and re-excitation;When the APEO concentration reaches 30 mg/L,the surface impedance of the steel bar in the corrosion solution is the highest,the corrosion current is the lowest,and the electrochemical reaction intensity is the weakest;When the APEO concentration is too low,it is difficult to form a complete passivation film on the surface of the steel bar;When the concentration is too high,APEO,as a metal complex,is prone to complexation reaction with Fe on the surface of steel bars,exacerbating the corrosion reaction of steel bars.Therefore,adding a certain concentration of APEO can effectively improve the corrosion resistance of steel bars and prolong the service life of reinforced concrete structures in Cl-corrosive environments.
维普
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