| 在老混凝土约束下的修补混凝土收缩性能试验研究 |
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| 引用本文： | 陈峰.在老混凝土约束下的修补混凝土收缩性能试验研究[J].武汉理工大学学报,2011(9):97-100. |
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| 作者姓名： | 陈峰 |
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| 作者单位： | 福州大学环境与资源学院; |
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| 基金项目： | 福建省自然科学基金(2010J05110) |
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| 摘 要： | 以自密实混凝土作为修补混凝土,进行了新老混凝土粘结的约束收缩试验研究,以研究受到老混凝土约束的修补混凝土收缩发展规律。试验考察了不同强度和界面处理方法对新混凝土收缩的影响,同时还制作了自由收缩试件进行比较。根据试验结果分析了新混凝土上由于约束收缩产生的应力分布,并采用双曲线函数拟合了新老混凝土粘结约束收缩的计算式,可为混凝土加固设计提供参考。
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| 关 键 词： | 修补实混凝土 粘结 约束收缩 收缩应力 双曲线函数 |
Experimental Research on Shrinkage of Repairing Concrete Restrained by Old Concrete |
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| CHEN Feng.Experimental Research on Shrinkage of Repairing Concrete Restrained by Old Concrete[J].Journal of Wuhan University of Technology,2011(9):97-100. |
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| Authors: | CHEN Feng |
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| Affiliation: | CHEN Feng (College of Environment and Resource,Fuzhou University,Fuzhou 350108,China) |
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| Abstract: | With the self-compacting concrete as new concrete,the restrained shrinkage experiment of new and old concrete is conducted in order to study the shrinkage laws of repairing concrete restrained by old concrete.The influence of concrete strength and disposed interface is researched and the free shrinkage specimens are also made for comparison.Based on the test results,the shrinkage stress of new concrete is got of analysis.The calculating formulae of restrained shrinkage of new and old concrete are put forwar... |
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| Keywords: | repairing concrete adherence restrained shrinkage shrinkage stress hyperbola function |
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