| 普通混凝土在冻融循环后的力学性能研究 |
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| 引用本文： | 覃丽坤,宋玉普,姚家伟. 普通混凝土在冻融循环后的力学性能研究[J]. 大连民族学院学报, 2010, 12(3): 236-238 |
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| 作者姓名： | 覃丽坤 宋玉普 姚家伟 |
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| 作者单位： | 1. 大连民族学院,土木建筑工程学院,辽宁,大连,116605
2. 大连理工大学,海岸和近海工程国家重点实验室,辽宁,大连,116024 |
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| 基金项目： | 国家自然科学基金，国家民委科学研究项目，国家建设部科研基金，辽宁省教育厅高等学校科学研究项目 |
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| 摘 要： | 采用快速冻融方法，对不同水灰比的普通混凝土分别进行0，25，50，75次冻融循环以及单轴压等5种比例加载路径的双轴压试验，测得了混凝土的峰值应力和应变。根据试验结果，探讨了冻融循环后，不同水灰比的混凝土在各种比例加载下的强度和变形等力学性能，为处于复杂应力状态下的混凝土的抗冻融设计提供了理论依据。
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| 关 键 词： | 混凝土 冻融循环 双轴压 力学性能 |
Study on Mechanical Properties of Plain Concrete after Freezing and Thawing Cycles |
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| QIN Li-kun,SONG Yu-pu,YAO Jia-wei. Study on Mechanical Properties of Plain Concrete after Freezing and Thawing Cycles[J]. Journal of Dalian Nationalities University, 2010, 12(3): 236-238 |
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| Authors: | QIN Li-kun SONG Yu-pu YAO Jia-wei |
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| Affiliation: | QIN Li - kun, SONG Yu - pu, YAO Jia - wei (1. College of Architecture ＆ Civil Engineering, Dalian Nationalities University, Dalian Liaoning 116605; 2. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian Liaoning 116024, China) |
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| Abstract: | We used the fast freezing and thawing method to test plain concrete with different water/cement ratios through 0, 25, 50 and 75 freezing and thawing cycles, under uniaxial compression and under biaxial compression with five different proportional loading paths. We measured the concrete＇s peak stress and strain. With the test result, we analyzed mechanical properties such as the strength and the deformation of concrete with different water/cement ratios under different proportional loading, providing a theoretical basis for the anti -freeze -and -thaw design of concrete under complex stress states. |
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| Keywords: | concrete freezing and thawing cycle biaxial compression mechanical properties |
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