| 饱和混凝土的弹性模量预测 |
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| 引用本文： | 王海龙,李庆斌.饱和混凝土的弹性模量预测[J].清华大学学报(自然科学版),2005,45(6):761-763. |
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| 作者姓名： | 王海龙 李庆斌 |
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| 作者单位： | 清华大学,水利水电工程系,北京,100084 |
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| 基金项目： | 国家自然科学基金资助项目(50225927，90210010) |
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| 摘 要： | 为了研究饱和混凝土中的孔隙水压力对混凝土力学性能的影响,根据饱和混凝土的微观结构建立了研究饱和混凝土力学性能的理论模型,利用夹杂、等效弹性模量的思想和Mori-Tanaka方法研究了饱和状态时孔隙水对混凝土弹性模量的影响。该模型考虑了水影响下的水泥后期水化和孔隙水的粘滞力对饱和混凝土弹性模量的影响。将该模型与Yaman等人的试验结果进行了对比,结果表明该模型可以预测孔隙水含量对混凝土弹性模量的影响,且该模型对饱和混凝土的弹性模量的预测也较为准确。
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| 关 键 词： | 饱和混凝土 弹性模量 孔隙水 Mori-Tanaka方法 |
| 文章编号： | 1000-0054(2005)06-0761-03 |
| 修稿时间： | 2004年4月18日 |
Saturated concrete elastic modulus prediction |
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| WANG Hailong,LI Qingbin.Saturated concrete elastic modulus prediction[J].Journal of Tsinghua University(Science and Technology),2005,45(6):761-763. |
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| Authors: | WANG Hailong LI Qingbin |
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| Abstract: | A model is presented to describe the effects of pore water on the elastic properties of saturated concrete. The physical model describes the saturated concrete microstructure with the saturated concrete elastic modulus based on inclusion theory and the Mori-Tanaka method. The influences of cement further hydration and water viscosity in pores and cracks on the elastic modulus of saturated concrete are taken into account in the model. The model shows the relationship between the elastic modulus and the porosity. The theoretic results compared well with previous test data of Yaman et al. and can be used to predict the elastic modulus of saturated concrete. |
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| Keywords: | saturated concrete elastic modulus pore water Mori-Tanaka method |
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