关键词: 混凝土试件, 抗压试验, 声发射监测

Abstract: Acoustic emission technology is a dynamic non-destructive testing methods developed in recent years. It could be used to evaluate material properties and to detect structural damage. By study of the AE hits and AE power produced by the acoustic emission in concrete specimens in different pressure conditions as well as the Kaiser effect with repeated loads, acoustic emission characteristics of concrete materials can be learnt and it may provide basic information for study of damage laws and fracture principle of concrete materials. Further, it is feasible to monitor concrete cracks in the dam dynamic by using acoustic emission.

Key words: concrete specimens, compression testing, acoustic emission monitoring