Abstract：Adopting the ASTM C666 quick freeze-thaw method, freeze-thaw tests with the number of freeze-thaw cycles being 0, 100, 150, 200, 250, and 300, were carried out on eighteen concrete prism specimens, the frost-resistant level of which, reaches D300 grade. The internal micro-structures of these specimens were observed by means of scanning electron microscopy (SEM) in order to detect damages caused by the freeze-thaw action. Afterwards these frozen-thawed specimens were tested on monotonic axial load; stress-strain testing curves after the freeze-thaw action were obtained. The testing results show that with the increasing time of freeze-thaw cycles, both the internal micro-structures and the basic mechanical parameters, including the ultimate bearing capacity, the Poisson ratio and the modulus of elasticity, degenerate in various degrees. Finally, stress-strain theoretical curvilinear equations and correlated parameters relating to the loss of relative dynamic modulus of elasticity were proposed. These results provide great reference for further research on the behavior and the calculation model of concrete structures in a freeze-thaw environment.
出版日期: 2008-06-05
引用本文:
. Stress-strain relationship of concrete in freeze-thaw
environment[J]. Frontiers of Architecture and Civil Engineering in China - Selected Publications from Chinese Universities, 2008, 2(2): 184-188.
ZOU Chaoying, ZHAO Juan, LIANG Feng. Stress-strain relationship of concrete in freeze-thaw
environment. Front. Struct. Civ. Eng., 2008, 2(2): 184-188.
Wei Jun Zhang Xiaoling Zhao Xiaolong Recent studies and developing directions of the durabilityof concrete structureLow Temperature ArchitectureTechnology 2003 92(2)13 (in Chinese)
Wei Jun, Zhang Xiaoling, Zhao Xiaolong. Recent studies and developing directions of the durabilityof concrete structure. Low Temperature Architecture Technology.2003, 92(2):1-3(in Chinese)
Wei Jun, Zhang Xiaoling, Zhao Xiaolong. Recent studies and developing directions of the durabilityof concrete structure. Low Temperature Architecture Technology.2003, 92(2):1-3(in Chinese)
2
Chen Zhaohui Huang He Zhang Wei Effect of reinforced-concrete deterioration on structuresJournal of Chongqing University (Natural ScienceEdition) 2003 26(2)4246 (in Chinese)
Chen Zhaohui, Huang He, Zhang Wei. Effect of reinforced-concrete deterioration on structures. Journal of Chongqing University (Natural Science Edition).2003, 26(2):42-46(in Chinese)
Chen Zhaohui, Huang He, Zhang Wei. Effect of reinforced-concrete deterioration on structures. Journal of Chongqing University (Natural Science Edition).2003, 26(2):42-46(in Chinese)
3
Liang Feng Experimental study on the mechanics behavior of frost-resistant concreteDissertation for the Doctoral DegreeHarbinHarbinInstitute of Technology 2003 (inChinese)
Liang Feng. Experimental study on the mechanics behavior of frost-resistant concrete. Dissertation for the Doctoral DegreeHarbin, HarbinInstitute of Technology, 2003(inChinese)
Liang Feng. Experimental study on the mechanics behavior of frost-resistant concrete. Dissertation for the Doctoral DegreeHarbin, HarbinInstitute of Technology, 2003(inChinese)
4
Michel P Jacques M Richard P Frost resistant concreteJournalof Construction and Building Materials 1996 10(5)339348. doi:10.1016/0950‐0618(95)00067‐4
Michel P, Jacques M, Richard P. Frost resistant concrete. Journalof Construction and Building Materials.1996, 10(5):339-348 doi: 10.1016/0950‐0618(95)00067‐4
Michel P, Jacques M, Richard P. Frost resistant concrete. Journalof Construction and Building Materials.1996, 10(5):339-348 doi: 10.1016/0950‐0618(95)00067‐4
5
Ba Hengjing Deng Hongwei Gao Xiaojian Study on microcrack and micro construction of high performanceconcreteConcrete 2001 11417 (in Chinese)
Ba Hengjing, Deng Hongwei, Gao Xiaojian. Study on microcrack and micro construction of high performanceconcrete. Concrete.2001, 1: 14-17(in Chinese)
Ba Hengjing, Deng Hongwei, Gao Xiaojian. Study on microcrack and micro construction of high performanceconcrete. Concrete.2001, 1: 14-17(in Chinese)
6
Guo Zhenhai Strength and Deformation of ConcreteBeijingTsinghua University Press 1997 2239 (in Chinese)
Guo Zhenhai. Strength and Deformation of Concrete. Beijing, Tsinghua University Press, 199722-39(in Chinese)
Guo Zhenhai. Strength and Deformation of Concrete. Beijing, Tsinghua University Press, 199722-39(in Chinese)
