Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Chloride corrosion resistance of double-layer anticorrosive coating in simulated concrete pore solution
https://orcid.org/0000-0001-7228-6472
Graphical abstract Display Omitted
Highlights Double-layer anticorrosive coating is proposed for the protection of the steel used in simulated concrete environment. The influence of physical and chemical modification methods on anti-corrosion coatings is compared and analyzed. The as-fabricated super-hydrophobic steel surface displayed good super-hydrophobic property and anticorrosive property.
Abstract Steel reinforced concrete structures are widely used in construction projects due to their low cost and high load-bearing capacity. The service life is inevitably reduced because of the steel corrosion during service. Here, a double-layer anti-corrosion strategy was proposed for the low carbon steel used in chloride corrosion environment. A super-hydrophobic anti-corrosion coating was fabricated on the surface of low carbon steel bars by an environment-friendly and safe method. The corrosion resistance of super-hydrophobic low carbon steel was studied in a chlorine-containing simulated concrete pore solution. Electrochemical test results showed that super-hydrophobic low carbon steel had better chlorine corrosion resistance than ordinary low carbon steel. Moreover, the effects of three different modification methods on the chloride corrosion resistance of super-hydrophobic low carbon steel were compared. The results of electrochemical tests and corrosion immersion experiments showed that the super-hydrophobic surface obtained through a combination of physical and chemical modification had good corrosion resistance. The corrosion inhibition rate of the super-hydrophobic samples was up to 97.1%. It is expected that the super-hydrophobic low carbon steel with a dual anti-corrosion layer will play a significant role in the corrosion protection of steel reinforced concrete structures.
Chloride corrosion resistance of double-layer anticorrosive coating in simulated concrete pore solution
https://orcid.org/0000-0001-7228-6472
Graphical abstract Display Omitted
Highlights Double-layer anticorrosive coating is proposed for the protection of the steel used in simulated concrete environment. The influence of physical and chemical modification methods on anti-corrosion coatings is compared and analyzed. The as-fabricated super-hydrophobic steel surface displayed good super-hydrophobic property and anticorrosive property.
Abstract Steel reinforced concrete structures are widely used in construction projects due to their low cost and high load-bearing capacity. The service life is inevitably reduced because of the steel corrosion during service. Here, a double-layer anti-corrosion strategy was proposed for the low carbon steel used in chloride corrosion environment. A super-hydrophobic anti-corrosion coating was fabricated on the surface of low carbon steel bars by an environment-friendly and safe method. The corrosion resistance of super-hydrophobic low carbon steel was studied in a chlorine-containing simulated concrete pore solution. Electrochemical test results showed that super-hydrophobic low carbon steel had better chlorine corrosion resistance than ordinary low carbon steel. Moreover, the effects of three different modification methods on the chloride corrosion resistance of super-hydrophobic low carbon steel were compared. The results of electrochemical tests and corrosion immersion experiments showed that the super-hydrophobic surface obtained through a combination of physical and chemical modification had good corrosion resistance. The corrosion inhibition rate of the super-hydrophobic samples was up to 97.1%. It is expected that the super-hydrophobic low carbon steel with a dual anti-corrosion layer will play a significant role in the corrosion protection of steel reinforced concrete structures.
Chloride corrosion resistance of double-layer anticorrosive coating in simulated concrete pore solution
https://orcid.org/0000-0001-7228-6472
Graphical abstract Display Omitted
Highlights Double-layer anticorrosive coating is proposed for the protection of the steel used in simulated concrete environment. The influence of physical and chemical modification methods on anti-corrosion coatings is compared and analyzed. The as-fabricated super-hydrophobic steel surface displayed good super-hydrophobic property and anticorrosive property.
Abstract Steel reinforced concrete structures are widely used in construction projects due to their low cost and high load-bearing capacity. The service life is inevitably reduced because of the steel corrosion during service. Here, a double-layer anti-corrosion strategy was proposed for the low carbon steel used in chloride corrosion environment. A super-hydrophobic anti-corrosion coating was fabricated on the surface of low carbon steel bars by an environment-friendly and safe method. The corrosion resistance of super-hydrophobic low carbon steel was studied in a chlorine-containing simulated concrete pore solution. Electrochemical test results showed that super-hydrophobic low carbon steel had better chlorine corrosion resistance than ordinary low carbon steel. Moreover, the effects of three different modification methods on the chloride corrosion resistance of super-hydrophobic low carbon steel were compared. The results of electrochemical tests and corrosion immersion experiments showed that the super-hydrophobic surface obtained through a combination of physical and chemical modification had good corrosion resistance. The corrosion inhibition rate of the super-hydrophobic samples was up to 97.1%. It is expected that the super-hydrophobic low carbon steel with a dual anti-corrosion layer will play a significant role in the corrosion protection of steel reinforced concrete structures.
Chloride corrosion resistance of double-layer anticorrosive coating in simulated concrete pore solution
Qu, Lei (Autor:in) / Wang, Qing (Autor:in) / Xu, Shuangshuang (Autor:in) / Wang, Ning (Autor:in) / Shi, Zengqin (Autor:in)
17.05.2021
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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