高强混凝土的声发射特性试验研究

Experimental Research of Acoustic Emission Characteristics for High-Strength Concrete

通过高强混凝土试块在受压状态下的声发射特性试验测试了混凝土的抗压强度和撞击数、事件数等声学特性参数。试验结果表明:高强混凝土受压强度与声学特性参数之间具有一定的相关性,可用于评判结构或构件的稳定性和安全性;声发射技术作为一种无损检测方法,具有操作简单、实时动态检测、对原有建筑物损伤小等优点。

Compressive strength of high-strength concrete,impacts and events of acoustic emission were measured by the acoustic emission experi-ment of compressive tests for high-strength concrete. The results show that a certain correlation is observed between the compression strength of high-strength concrete and acoustic characteristics parameters of acoustic emission signals,and acoustic emission test can be used to judge the sta-bility and security of the structure or component.