Research Progress on Corrosion Mechanisms and Protective Coatings of Concrete

Abstract

Concrete has become the most important structural material for modern buildings due to its high compressive strength, low price cost and abundant resources. However, the durability problem induced by corrosion has been a bottleneck to limit its applications and development. In this work, an in-depth analysis of the corrosion mechanism of concrete was conducted from physical, chemical and biological factors. The application status, advantages and disadvantages of organic, inorganic and organic-inorganic composite typical concrete coatings were comprehensively summarized, the research progress of new coatings such as self-healing coatings and self-cleaning coatings was introduced. Finally, the future development trends of concrete coatings were discussed. This paper would provide new ideas for the development of concrete protective coatings.

Keywords

• concrete；corrosion mechanism；protective coating；research progress