Flexural Behaviour of Reinforced Concrete Members Subjected to Freeze-Thaw Cycles

Abstract:

The purpose of this research is to investigate the influence of the freeze-thaw cycles on the flexural behavior of reinforced concrete members. The variation of the concrete stress-strain relationship due to frozen-thawed deterioration was considered. The temperature distribution was calculated based on the heat conduction theory, and the damaged region affected by freeze-thaw cycles was determined. By using Reponse-2000 program, the flexural behaviour of a reinforced concrete slab was analyzed and predicted. The analytical results show that with increase of number of freeze-thaw cycles, the yield moment, the ultimate moment and the curvature ductility decreased, while the relative depth of neutral axis and the midspan deflection increased.

• Periodical: Applied Mechanics and Materials (Volumes 71-78)
• Pages: 712-716
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.71-78.712
• Online since: July 2011
• Authors: An Duan, Wei Liang Jin
• Keywords: Concrete Member, Flexural Behavior, Freeze-Thaw Cycle

References

[1] M. Pigeon, and R. Pleau, Durability of concrete in cold climates, E&FN SPON, London, (1995).

[2] T.C. Powers, A Working hypothesis for further studies of frost resistance of concrete, ACI Journal Proceedings, 16(4), (1945): 245-272.

[3] T.C. Powers, Freezing effect in concrete, in: C.F. Scholer Durability of Concrete, American Concrete Institute, Detroit, 1975, pp.1-11.

[4] G.W. Scherer, Crystallization in pores, Cement and Concrete Research, 29(8), (1999): 1347-1358.

DOI: 10.1016/s0008-8846(99)00002-2

[5] M. Hassan, K. Nagai, Y. Sato, and T. Ueda, Tensile stress-crack width model for plain concrete damaged by freezing and thawing action, Proc. JCI, 24(2), (2002): 109-114.

[6] H.S. Shang, Y.P. Song, Experimental study of strength and deformation of plain concrete under biaxial compression after freezing and thawing cycles, Cement and Concrete Research, 36 (10), (2006): 1857-1864.

DOI: 10.1016/j.cemconres.2006.05.018

[7] L. Petersen, L. Lohaus, M. A. Polak, Influence of freezing-and-thawing damage on behavior of reinforced concrete elements, ACI Materials Journal, 104(4), (2007): 369-378.

DOI: 10.14359/18826

[8] A. Duan, W. L Jin, J.R. Qian, Effect of freeze-thaw cycles on the stress-strain curves of unconfined and confined concrete, Materials and Structures, in press.

DOI: 10.1617/s11527-010-9702-9

[9] D.H. Bager, Ice formation in hardened cement paste, part I-room temperature cured paste with variable moisture contents, Cement and Concrete Research, 16(5), (1986): 709-720.

DOI: 10.1016/0008-8846(86)90045-1

[10] L.P. Ye, Concrete structures, Tsinghua University Press, Beijing, 2002, pp.12-19 (in Chinese).