Effects of Specimen Height on the Acoustic Emission Rate Value ’a’ for Cement Mortar
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2016年第4期
论文作者：王岩 HU Hongxiang LU Guijuan CHEN Shijie LIU Shaojun WANG Yao
文章页码：843 - 850
摘 要：In order to study the size effect on the AE rate ’a’ value,three kinds of mix ratios were set up by different particle sizes and water cement ratios,45 cement mortar specimens with five different heights were tested under axial compression.And the whole damage processes were monitored by full-digital acoustic emission acquisition system,followed by an analysis of mechanical behavior and AE activity.The experimental results show that the height of the cement specimen has significant effects on the compressive strength and the acoustic emission rate ’a’ value,but a slight effect on the accumulated AE hits number,which is analyzed from aspects of failure process of cement mortar specimens.
王岩1，HU Hongxiang1，LU Guijuan1，CHEN Shijie1，LIU Shaojun1，WANG Yao2
1. College of Civil and Transportation Engineering,Hohai University2. School of Architecture and Civil Engineering,Jinling Institute of Technology
摘 要：In order to study the size effect on the AE rate ’a’ value,three kinds of mix ratios were set up by different particle sizes and water cement ratios,45 cement mortar specimens with five different heights were tested under axial compression.And the whole damage processes were monitored by full-digital acoustic emission acquisition system,followed by an analysis of mechanical behavior and AE activity.The experimental results show that the height of the cement specimen has significant effects on the compressive strength and the acoustic emission rate ’a’ value,but a slight effect on the accumulated AE hits number,which is analyzed from aspects of failure process of cement mortar specimens.
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