砂浆单轴受压声发射信号采集试验研究  

STUDY ON ACOUSTIC EMISSION SIGNALS ACQUISITION TO SINGLE AXIS COMPERSSION OF MORTAR

作　　者：吕书清[1] 

机构地区：[1]哈尔滨商业大学土木与制冷工程学院,哈尔滨150028

出　　处：《低温建筑技术》2009年第8期50-51,共2页Low Temperature Architecture Technology

摘　　要：在单轴压缩的试验中对全过程进行了声发射信号的采集。依据声发射产生机理于砂浆的变形特征将试验的声发射曲线划分为四个阶段,并描述了每一阶段的特征,从其微观的孔隙结构的变化规律进一步解释其宏观力学性能的变化机理。This paper also collects acoustic emission signals during the whole process of single axis cornpression. Based on the mechanism of acoustic emission and the characters of deformation, this paper carves acoustic emission curves into four periods, and describes of each period, and variation law of macrocosmic mechanical properties are explained further through microcosmic scale.

关 键 词：混凝土 声发射 砂浆 

分 类 号：TU502[建筑科学—建筑技术科学]