Shape analysis of a reference cement

被引：103

作者：

Garboczi, EJ ^{[1
]}

Bullard, JW ^{[1
]}

机构：

[1] Natl Inst Stand & Technol, Mat & Construct Res Div, Gaithersburg, MD 20899 USA

来源：

CEMENT AND CONCRETE RESEARCH | 2004年 / 34卷 / 10期

关键词：

fineness; image analysis; surface area; cement; cement manufacture;

D O I：

10.1016/j.cemconres.2004.01.006

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Recently, techniques for acquiring, analyzing, and using 3-D shape information for aggregates (sand, gravel) have been developed and demonstrated. These mathematical techniques, based on spherical harmonic coefficient analysis, have been applied to X-ray computed tomography images. X-ray microtomographic images of cement particles are required to be able to apply these same mathematical techniques to analyze Portland cement particle shape. Such images are available in the Visible Cement Database for a single reference cement. Actual cement images, as well as some quantitative results on the nonsphericity of the particles, are given here. Three-dimensional cement particle shapes have never been available before. A demonstration of how real cement particle shapes will change the CEMHYD3D cement hydration model is also given. Published by Elsevier Ltd.

引用

页码：1933 / 1937

页数：5

共 9 条

[1] Bentz DP, 1997, J AM CERAM SOC, V80, P3
[2] BENTZ DP, 1994, AM SOC TEST MATER, V1215, P60, DOI 10.1520/STP12645S
[3] The Visible Cement Data Set
Bentz, DP
Mizell, S
Satterfield, S
Devaney, J
George, W
Ketcham, P
Graham, J
Porterfield, J
Quenard, D
Vallee, F
Sallee, H
Boller, E
Baruchel, J
[J]. JOURNAL OF RESEARCH OF THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY, 2002, 107 (02): : 137 - 148
[4] ON THE ORIGIN OF PORTLAND-CEMENT SETTING
CHEN, Y
ODLER, I
[J]. CEMENT AND CONCRETE RESEARCH, 1992, 22 (06) : 1130 - 1140
[5] FERRARIS CF, 2004, IN PRESS ASTM CEM CO
[6] Three-dimensional mathematical analysis of particle shape using X-ray tomography and spherical harmonics: Application to aggregates used in concrete
Garboczi, EJ
[J]. CEMENT AND CONCRETE RESEARCH, 2002, 32 (10) : 1621 - 1638
[7] GARBOCZI EJ, 2004, UNPUB CEM CONC RES
[8] Kak AvinashC., 2001, CLASSICS APPL MATH, V33
[9] Polya G., 1951, AM-27)

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