Shape comparison between 0.4–2.0 and 20–60 μm cement particles

Holzer, Lorenz; Flatt, Robert J.; Erdoğan, Sinan T.; Bullard, Jeffrey W.; Garboczi, Edward J.

doi:10.1111/j.1551-2916.2010.03654.x

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	Shape comparison between 0.4–2.0 and 20–60 μm cement particles
Authors:	Holzer, Lorenz Flatt, Robert J. Erdoğan, Sinan T. Bullard, Jeffrey W. Garboczi, Edward J.
DOI:	10.1111/j.1551-2916.2010.03654.x
Published in:	Journal of the American Ceramic Society
Volume(Issue):	93
Issue:	6
Page(s):	1626
Pages to:	1633
Issue Date:	Jun-2010
Publisher / Ed. Institution:	Wiley
ISSN:	0002-7820
Language:	English
Subjects:	Map
Subject (DDC):	620.11: Engineering materials
Abstract:	Portland cement powder, ground from much larger clinker particles, has a particle size distribution from about 0.1 to 100 μm. An important question is then: does particle shape depend on particle size? For the same cement, X-ray computed tomography has been used to examine the 3-D shape of particles in the 20-60 μm sieve range, and focused ion beam nanotomography has been used to examine the 3-D shape of cement particles found in the 0.4-2.0 μm sieve range. By comparing various kinds of computed particle shape data for each size class, the conclusion is made that, within experimental uncertainty, both size classes are prolate, but the smaller size class particles, 0.4-2.0 μm, tend to be somewhat more prolate than the 20-60 μm size class. The practical effect of this shape difference on the set-point was assessed using the Virtual Cement and Concrete Testing Laboratory to simulate the hydration of five cement powders. Results indicate that nonspherical aspect ratio is more important in determining the set-point than are the actual shape details.
URI:	https://digitalcollection.zhaw.ch/handle/11475/2198
Fulltext version:	Published version
License (according to publishing contract):	Licence according to publishing contract
Departement:	School of Engineering
Organisational Unit:	Institute of Computational Physics (ICP)
Appears in collections:	Publikationen School of Engineering

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Holzer, L., Flatt, R. J., Erdoğan, S. T., Bullard, J. W., & Garboczi, E. J. (2010). Shape comparison between 0.4–2.0 and 20–60 μm cement particles. Journal of the American Ceramic Society, 93(6), 1626–1633. https://doi.org/10.1111/j.1551-2916.2010.03654.x

Holzer, L. et al. (2010) ‘Shape comparison between 0.4–2.0 and 20–60 μm cement particles’, Journal of the American Ceramic Society, 93(6), pp. 1626–1633. Available at: https://doi.org/10.1111/j.1551-2916.2010.03654.x.

L. Holzer, R. J. Flatt, S. T. Erdoğan, J. W. Bullard, and E. J. Garboczi, “Shape comparison between 0.4–2.0 and 20–60 μm cement particles,” Journal of the American Ceramic Society, vol. 93, no. 6, pp. 1626–1633, Jun. 2010, doi: 10.1111/j.1551-2916.2010.03654.x.

HOLZER, Lorenz, Robert J. FLATT, Sinan T. ERDOĞAN, Jeffrey W. BULLARD und Edward J. GARBOCZI, 2010. Shape comparison between 0.4–2.0 and 20–60 μm cement particles. Journal of the American Ceramic Society. Juni 2010. Bd. 93, Nr. 6, S. 1626–1633. DOI 10.1111/j.1551-2916.2010.03654.x

Holzer, Lorenz, Robert J. Flatt, Sinan T. Erdoğan, Jeffrey W. Bullard, and Edward J. Garboczi. 2010. “Shape Comparison between 0.4–2.0 and 20–60 Μm Cement Particles.” Journal of the American Ceramic Society 93 (6): 1626–33. https://doi.org/10.1111/j.1551-2916.2010.03654.x.

Holzer, Lorenz, et al. “Shape Comparison between 0.4–2.0 and 20–60 Μm Cement Particles.” Journal of the American Ceramic Society, vol. 93, no. 6, June 2010, pp. 1626–33, https://doi.org/10.1111/j.1551-2916.2010.03654.x.