Study on the Durability of Air Entrained Concrete after Long-Term Soaking in Multi-Salt Solution

Abstract:

The concrete structures have been long-term corroded by soluble salts in the salinized soil, which was simulated by the way of concrete being soaked in multiple salts solution, then the failure law and mechanism of concrete was studied in this paper. The results show that salt crystallization happens on the exposed parts of concrete, the quality loss rate of concrete takes on the reduction-growth trend and the relative dynamic elastic modulus takes on the reduction-growth trend, the salt corrosion resistance of air entrained concrete is better than that of non-air-entrained concrete after long-term soaking in multiple salts solution. The failure mechanism of concrete is the result of interaction between the physical damage of salts crystallization and chemical erosion, but the former is much easier to implement than the latter.

• Periodical: Applied Mechanics and Materials (Volumes 716-717)
• Pages: 375-378
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.716-717.375
• Online since: December 2014
• Authors: Xiao Ping Su*, Ting Ting Wang
• Keywords: Air Entrained Concrete, Durability, Multiple Salts, Soaking

References

[1] Li Xiaojun, Li Qusheng. Journal of Arid Land Resources and Environment, 2005, 19(3): 88-92.

[2] Li Bin, Wang Zhichun, Liang Zhengwei, etc. Agricultural Research in the Arid Areas, 2007, 25(2): 151-155.

[3] Li Bin, Wang Zhichun, etc. Journal of Ecology and Rural Environment, 2006, 22(1): 20-23, 28.

[4] Xiaoping Su, Jinhui Guo. International Conference on Transportation, 2013: 250-254.

[5] Zhang Jing. Changchun: Jilin University, (2010).

[6] Xiao Haiving, Ge Yong, Zhang Baosheng, etc. Science and Technology Forum & the 6th National Conference of Concrete Durability, 2004: 147-151.

[7] Luo Qixian, J.H. Bungey. Hydro-science Research, 1996, 9(3): 264-270.