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Shape Analysis of a Reference Cement

Published

Author(s)

Edward J. Garboczi, Jeffrey W. Bullard

Abstract

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.
Citation
Cement and Concrete Research
Volume
34
Issue
No. 10

Keywords

cement, hydration model, microtomography, shape

Citation

Garboczi, E. and Bullard, J. (2004), Shape Analysis of a Reference Cement, Cement and Concrete Research, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=860532 (Accessed March 29, 2024)
Created October 1, 2004, Updated February 19, 2017