Damage Model of Concrete Durability under Coupled Action of Stress and Freeze-Thaw Cycles

Abstract:

Based on damage mechanics and thermo, the mechanical degradation of concrete material under the coupled action of stress and freeze-thaw cycles was analyzed in this paper. The tensile stress in concrete during freeze-thaw cycles was obtained considering freezing-induced pore pressure variation with the change of temperature. A revised fatigue fracture model is proposed for the reliability analysis of concrete durability, which can evaluate damage status and the remaining service life of concrete structure after freeze-thaw cycles with different loading levels. The present model can serve as references for design and safety assessment for concrete structures in cold regions.

• Periodical: Advanced Materials Research (Volumes 261-263)
• Pages: 182-186
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.261-263.182
• Online since: May 2011
• Authors: Dan Zheng, Jian Ting Zhou
• Keywords: Concrete, Durability, Freeze-Thaw, Stress

References

[1] R. Mu, C. Miao, X. Luo. Cem.& Con. Res., Vol.32(2002), p.1061.

[2] W. Sun, Y. Zhang, H. Yan, et al. Cem.& Con. Res., Vol.29(1999), p.1519.

[3] P. Paris, F. Erdogan. Journal of Basic Eng., Vol.85(1963), p.528.

[4] J. Ju, X. Lee. Journal of Eng. Mec., Vol.117(1991), p.1495.

[5] A.H. Zhao, J.L Yu. Acta Mech. Sini., Vol.31(1991), p.465. (In Chinese)

[6] V. Pentalla. Adv. Cem. based Mat., Vol.7(1998), p.8.

[7] R. Weast. The American Journal of the Med. Sci., Vol.257(1969), p.423.

[8] M. Brun, A. Lallemand, J. Quinson, et al. Thermochimica Acta., Vol.21(1977), p.59.

[9] C.Y. Zou, J. Zhao, F. Liang, Journal of Bui. Stru., Vol.29(2008), p.117. (In Chinese)

[10] J.Y. Li, J.G. Cao, W.Y. Xue, Journal of Hydr. Vol.1(1999), p.41. (In Chinese)