The Setting of Acoustic Emission Detecting Parameters in Concrete Structure
OUYANG Li jun,LU Zhou dao,ZHAO Yan lin3 and LV Hai bo
DOI:10.11835/j.issn.1674-4764.2008.05.008
Received ,Revised , Accepted , Available online July 01, 2015
Volume ,2008,Pages 37-41
- Abstract
In order to solve the problem that the choice of acoustic emission (AE) parameters in concrete detection are determined only by experience, several tests were conducted. Through lead-breaking and stimulant loading tests, the reasonable value of threshold at which noise can be efficiently insulated was obtained. Through lead-breaking tests, time parameters (PDT, HDT, HLT) which fit concrete samples were obtained. The velocity and attenuation of AE signals in concrete also were measured through lead-breaking tests. This method of ascertaining detection parameters by testing is practical for AE detection in concrete structures.