SEM-backscattered electron imaging and image processing for evaluation of unhydrated cement volume fraction in slag blended Portland cement pastes

被引：32

作者：

Feng Shuxia ^{[1
]}

Wang Peiming ^{[1
]}

Liu Xianping ^{[1
]}

机构：

[1] Tongji Univ, Sch Mat Sci & Engn, Key Lab Adv Civil Engn Mat, Educ Minist, Shanghai 201804, Peoples R China

来源：

JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2013年 / 28卷 / 05期

关键词：

accelerating voltage; magnification; grey level histogram; statistical analysis; total imaging area; HYDRATION; CONCRETE;

D O I：

10.1007/s11595-013-0802-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

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 250x 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.

引用

页码：968 / 972

页数：5

共 8 条

[1]

Feng Shuxia, 2010, Journal of the Chinese Ceramic Society, V38, P1682

[2] A SURVEY ON IMAGE SEGMENTATION [J].