Novel anticorrosive zinc phosphate coating for corrosion prevention of reinforced concrete

Time‐dependent model and life prediction for reinforcement corrosion in magnesium oxychloride cement concrete

“…Based on the results of using an anticorrosion coating in OPCC, coating technology is a practical way to alleviate rebar corrosion in harsh environments. [29][30][31] However, the feasibility of coating technology in solving steel corrosion in MOCC remains to be verified. Therefore, one of the highlights of this paper is that it provided favorable support for its feasibility in quantitative analysis.…”

“…The coating can provide protection to the rebar in four aspects: barrier protection, electrochemical action, passivation action and self-repairing action. [29][30][31]…”

“…This occurred primarily because the CR was in the activation stage, which made it easier to corrode. 31 As the corrosion time increased, alkali zinc carbonate, alkali zinc oxide, and insoluble zinc hydroxide formed on the surface of the coating because the zinc was oxidized partially. The oxidation products of zinc in the coating migrated to the deteriorated area of the coating and filled a certain number of pores in the coating, which caused an inert film to form on the surface of CR.…”

“…Based on the use of an anticorrosion coating for OPCC, coating technology was found to be a practical way to alleviate rebar corrosion. [29][30][31] This paper presents a study on the reinforcement corrosion in MOCC in which the practicality of coated rebar in MOCC was investigated. In addition, reinforced concrete based on ordinary Portland cement is unserviceable in a salt lake environment after more than 3-5 years.…”

Experiment and time‐varying characteristics of steel corrosion in magnesium oxychloride cement

“…There were four groups of the specimen with the same nine proportion, and six blocks (three blocks were MOC-HS system and other three blocks were MOC-SS system) were in each group. For MOC, three groups were used for the polarization curve test of the weak polarization region (the absolute value of polarization potential was 40 mV 32 ) of steel in MOC at three test ages (42,56, and 90 days), this was mainly because the polarization of steel in the weak polarization region every time would affect the corrosion states; one group was used for testing the polarization curve of the linear polarization region (the absolute value of polarization potential was 10 mV) of steel in MOC at five test ages (14,28,42,56, and 90 days) and the weight loss of steel in MOC at two test ages (0 and 90 days). CS350 electrochemical workstation produced by Wuhan Corrtest Instrument Corp., Ltd was used to test the polarization curve, and ZA1005AS electronic balance with the range of 120 g and the accuracy of 0.01 mg produced by Shanghai Zanwei Hengqi Instrument Corp., Ltd.…”