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利用冲击回波方法对不同配合比混凝土的损伤特性进行了试验研究,讨论了混凝土不同损伤程度与机械应力波传播特性的相关性,研究表明,冲击回波方法中应力波波速、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。
The impact characteristics of concrete with different proportions of concrete are studied by using impact-echo method. The correlation between different damage degree of concrete and the propagation characteristics of mechanical stress wave is discussed. The results show that the parameters of shock wave velocity, Good to reflect the various stages of the concrete damage development.