The Effect of the Freeze-Thaw Cycles in Nanometer Pores on the Cement Structure

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Abstract:

The pore structure of cement-based materials is closely related to the freeze-thaw resistance durability. And this paper focused on nanometer pores to verify the connection of freeze-thaw cycles in the nanometer pores with the structure deterioration and to explore the stress in the pore wall during the freeze-thaw process. And BET method was adopted to analyze the pore structure of the cement and results indicated the changing trends of parameters such as the pore volume, average pore size and surface area of specimens. Moreover, pore size distribution presented prominent fluctuations of pore sizes in the range of 0 ~ 20 nm, while the changes on the scale of 20 ~ 100 nm were limited.

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620-624

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January 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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[1] Powers T.C. : Journal of the American Concrete Institute, Vol 41 (1945), pp.245-272.

Google Scholar

[2] Powers T.C. and Huelmuch R.A. : Proceedings of the Highway Research Board, Vol 32 (1953), pp.285-297.

Google Scholar

[3] SETZER M J. : J Col-loid Interface Sci, 170-182. Vol 235 (2001) No. 1, pp.170-182.

Google Scholar

[4] Fagerlund G. : Durability of Concrete. Detroit: American Concrete Institute, (1975), pp.13-65.

Google Scholar

[5] Manmohan D. and Mehta P.K. : Cement and Concrete Research, Vol 11 (1981) No. 4, pp.507-518.

Google Scholar

[6] Wu Z W : High Performance Concrete (China Railway Publishing House, China 1999).

Google Scholar

[7] Yuan H F and Chen H S : Proceedings of the 13th Conference on Fiber Reinforced Concrete and the Second Cross-Strait Symposium on Concrete Technology, Nanjing, China (Oct 28-29, 2010).

Google Scholar

[8] Chen L, He J H, Zhao Y N, et al. Communications Standardization, (2009) No. 2 , pp.70-73.

Google Scholar

[9] Jia F G and Liu H L. China Concrete and Cement Products, (1993) No. 4, pp.6-9.

Google Scholar

[10] Mu X F, Xu Z Z and Tang M S. Bulletin of the Chinese Ceramic Society, (1995) No. 1, pp.27-31.

Google Scholar