摘要
声发射作为一种动态无损检测方法 ,在混凝土材料研究中得到广泛应用。研究混凝土在受压情况下的声发射特性 ,对含有不同最大集料粒径的普通混凝土和高强混凝土作了测试 ,内容涉及声发射信号、最大集料粒径、抗压强度和压应变。实验结果表明 ,受压过程中探测到的声发射信号包含的信息可用于判定试件的稳定性 ;
Being a kind of dynamic nondestructive testing method, acoustic emission(AE) was widely used in the research of concrete materials . AE characteristics of the concrete under uniaxial compression were studied. Tests were made on the normal and high strength concretes with aggregates of different sizes for AE signals, maximum aggregate size, compressive strength and compressive strain. Test results showed that the AE signals detected during the compression process contained potentially useful information for judging the stability of the specimens. Good correlation was observed between AE signals and maximum aggregate sizes.
出处
《无损检测》
2001年第5期194-197,共4页
Nondestructive Testing
