Study on Corrosion Resistance Coefficient Assessment Method for Sulfate Resistance of Cementitious Material

Abstract:

By means of testing corrosion resistance coefficient of different cementitious material under the sulfate corrosion experimental conditions, sulfate resistance of cementitious material and assessment method are studied. The results show that 90d is proper corroded age for assessment sulfate resistance of cementitious material by corrosion resistance coefficient method, and the assessment method is put forwarded. Sulfate resistance of cementitious material can be divided into five classes according to corrosion resistance coefficient assessment method as follows: “very low”, “low”, “moderate”, “high” and “very high”. The sulfate resistance of Portland cement is better than ordinary Portland cement, and both of them are low. Mineral admixture with proper content can improve sulfate resistance of cementitious materia largely, but do not always available to all content. Sulfate corrosion mechanism of different kinds of cementitious material is analyzed.

• Periodical: Applied Mechanics and Materials (Volumes 174-177)
• Pages: 624-630
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.174-177.624
• Online since: May 2012
• Authors: Kun Peng Gu, Cheng Qi Wang
• Keywords: Assessment Method, Cementitious Material, Corroded Age, Corrosion Resistance Coefficient, Mineral Admixture, Sulfate Corrosion

References

[1] P. Kumar Mehta: Concrete Structure, Properties and Materials(Prentice Hall prss, America,1991).

[2] Adam Neville: Cement and Concrete Research, Vol. 34(2004), p.1275~1296.

[3] Bing Tian, Menashi D, Cohen: Cement and Concrete Research, Vol. 30(2000), p.117~123.

[4] Wei Ke: Report of corrosion of china( Chemical Industry Press, China 2003,in chinese).

[5] Xiaoxuan Ma: Concrete and Cement Product(in chinese), Vol.6(2003), p.6~7.

[6] Omar S. Baghabra, Al-Amoudi: Cement and Concrete Composites, Vol.24(2002):305~316

DOI: 10.1016/s0958-9465(01)00082-8

[7] Mingxia Shi, Youjun Xie: Journal of building materials(in chinese),Vol.6(2003):350~355

[8] Huisheng Shi: Cement(in chinese), Vol.7(1999):6~9