Evaluation for Damage of Concrete by Impact Echo Method
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摘要: 利用冲击回波方法对不同配比混凝土的损伤特性进行了试验研究。讨论了混凝土损伤程度与机械应力波传播特性的关系。研究表明,冲击回波方法中应力波波速和频谱等参数能够很好地反映混凝土内部损伤发展的各个阶段。Abstract: The damage characteristics of concrete with different mixture were studied by impact echo method. The relationship between damage range and the stress wave parameters, such as stress wave speed, frequency spectrum, was discussed. The result showed that the development of damage could be reflected by the stress wave speed and the frequency spectrum of the impact echo.
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Keywords:
- Damage of concrete /
- Impact echo /
- Stress wave speed /
- Frequency spectrum
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[1] Jason D Stauffer, Clinton B Woodward. Nonlinear ultrasonic testing with resonant and pulse velocity parameter for early damage in concrete[J]. ACI Material Journal,2005,102(2):118-121. [2] 李为杜.混凝土无损检测技术[M].上海:同济大学出版社,1989:78-80. [3] 苏 航,林维正.冲击回波检测方法及其在土木工程中的应用[J].无损检测,2003,26(3):81-83. [4] 蔡四维,蔡 敏.混凝土的损伤断裂[M].北京:人民交通出版社,1999:100 -102. [5] Nicholas J Carino, Mary Sansalone. Detection of voids in grouted ducts using the impact echo method[J]. ACI Material Journal,1992,89(3):73-76. [6] 祝永年,沈 威,译.混凝土的结构、性能与材料[M].上海:同济大学出版社,1997:49-53.
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