Corrosion Behavior and Mechanical Properties of Reinforcing Bar HRB400 in NaCl Solution

Abstract:

The corrosion behavior of reinforcing bar HRB400 in simulated concrete solution (0.5 wt.% NaCl solution) was investigated, and its tensile mechanical properties were tested before and after corrosion. The results show that, with the increase of corrosion time from 240h to 720h, the corrosion rate increases and the corrosion becomes heavier and heavier, and the composition amounts of corrosion scale are similar. After 720h, the yield strength and tensile strength are decreased by less than 10%, and the elongation are decreased by more than 20%.

• Periodical: Advanced Materials Research (Volumes 418-420)
• Pages: 451-454
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.418-420.451
• Online since: December 2011
• Authors: Li Ping, Wang Ying
• Keywords: Corrosion Behavior, Corrosion Rate, Reinforcing Bar

References

[1] P. Li, D.X. Zhang. Materials Protection, Vol. 43 (2010), p.44 (in Chinese)

[2] Z.L. Lu. Journal of Chinese Society for Corrosion and Protection, Vol. 27(2007), p.119 (in Chinese)

[3] Y.X. Guo, J.X. Gong. Corrosion Science and Protection Technology, Vol. 19(2007), p.218 (in Chinese)

[4] Y.F. Fan, Z.Q. Hu, Y.Z. Zhang. Sichuan Building Science, Vol. 33(2007), p.59 (in Chinese)

[5] C.J. Kitowski, H.G. Wheat. Corrosion, Vol. 53(1997), p.216

[6] F. Belaid, C. Arliguie, R. Francois. Corrosion, Vol. 56 (2000), p.960

[7] O. Geng, G. Li, Y.S. Yuan. Concrete, 2(2005), p.20 (in Chinese)

[8] G.X. Ruan, G.Y. Liu. Sichuan Building, Vol. 26(2006), p.83 (in Chinese)