Abstract
Architectural concrete has been wildly used nowadays, and those served in an offshore environment often suffer from chloride penetration and carbonation. To assess the protection and decoration performances of architectural concrete, this study exposed architectural concrete to actual marine environments and accelerated carbonation conditions. The chloride and carbonation resistance of architectural concrete was determined to evaluate the protection performance, and the corresponding surface-color-consistency was adopted to characterize its decoration performance. The results show that the total and free chloride of concrete in the marine atmosphere zone and the tidal zone generally decreases with depth; chloride content arguments significantly with exposure time, with a chloride maximum peak near the surface. Moreover, the chloride diffusion coefficient is small throughout the measurements, indicating the superior chloride resistance of architectural concrete. Furthermore, architectural concrete also possesses excellent carbonation resistance based on the carbonation depth data obtained from the carbonation experiment. Therefore, architecture concrete served as protection covers can withstand both the chloride attack and carbonation tested in this paper. In addition, carbonation was found to have a profound influence on the aesthetics of architectural concrete. Therefore, carbonation should be carefully handled for better maintaining the aesthetic appearance of architectural concrete in long-term service.
Highlights
Architectural concrete is one way of modernist architecture expression, christened decoration concrete for its valuable decorative effect
That is because the matrix becomes increasingly denser with the enhancement of strength, which makes it harder for external solution to penetrate under the same saturation degree of concrete
The indicating total andthat free chloride content generallysuperior decreases with architectural concrete possesses capacity ondepth; resistingchloride indicating that architectural concrete possesses superior capacity on resisting chloride penetration
Summary
Architectural concrete is one way of modernist architecture expression, christened decoration concrete for its valuable decorative effect. The chloride penetration resistance and that carbonation resistance of concrete have been widely on experiments and practical engineering, finding several mix proportions all possessed superior investigated [3,4,5,6,7,8,9,10], which are not needed to be stated extensively. About the durability surface appearance architectural concrete and proposed methods for improving construction quality. This study prepared architectural concrete specimens with mix proportions employed and optimized the mix proportions of city, architectural concrete, evaluated the mechanical property in the subway construction of Qingdao and exposed them to the actual marine environments to and durability, and successfully it and in the construction ofofMetro. Studies about the durability and surface appearance evaluation of architectural concrete in marine environments, which helps the acquiring of safety indicators and the controlling of harmful
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
