SEM-backscattered Electron Imaging and Image Processing for Evaluation of Unhydrated Cement Volume Fraction in Slag Blended Portland Cement Pastes
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2013年第5期
论文作者：丰曙霞 王培铭 LIU Xianping
文章页码：968 - 972
摘 要：Proper parameters for image taking and minimum field number for image processing were investigated to evaluate volume fraction of unhydrated cement(UHC) in both neat cement paste and slag blended cement paste.Our research suggested that magnification 250× was sufficient for the two pastes,and accelerating voltage should be set as 15 kV and 20 kV for BSE image taking of neat cement paste and slag blended cement paste respectively;the minimum field number increased while the total imaging area stayed the same as the magnification increased within certain statistical bias.
丰曙霞，王培铭，LIU Xianping
Key Laboratory of Advanced Civil Engineering Materials,Education of Ministry,School of Materials Science and Engineering,Tongji University
摘 要：Proper parameters for image taking and minimum field number for image processing were investigated to evaluate volume fraction of unhydrated cement(UHC) in both neat cement paste and slag blended cement paste.Our research suggested that magnification 250× was sufficient for the two pastes,and accelerating voltage should be set as 15 kV and 20 kV for BSE image taking of neat cement paste and slag blended cement paste respectively;the minimum field number increased while the total imaging area stayed the same as the magnification increased within certain statistical bias.
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