Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Shape Analysis of a Reference Cement



Edward J. Garboczi, Jeffrey W. Bullard


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 mathematical techniques to analyze portland cement particle shape. Such images are available for a single reference cement in the Visible Cement Database. Actual cement images, as well as some quantitative results on the non-sphericity 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 revolutionize the CEMHYD3D cement hydration model is also given.
Cement and Concrete Research
No. 10


cement, hydration model, microtomography, shape


Garboczi, E. and Bullard, J. (2004), Shape Analysis of a Reference Cement, Cement and Concrete Research, [online], (Accessed May 23, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created October 1, 2004, Updated February 19, 2017