"The findings presented in this thesis are the result of a study of the hydration mechanism of pre-calcined periclase aggregates. It is hoped that these findings will provide the means to develop an economical, stable and hydration resistant layer on the surface of periclase aggregates by coating with appropriate chemical systems.
In the conduct of this study two sources of commercially obtained materials, Steetley 323, and China metal 90-10, supplied by the Quigley company, were characterized and treated with different concentrations of boron-containing water suspensions in order to impose an altered layer which would resist hydration.
Variables affecting hydration investigated in this study included: size of materials, concentrations of boron chemical suspensions, steam temperatures and pressures, and post-calcination temperatures. Alginate thickeners with varying concentrations of boric acid were used to control the concentrations of boron on the surfaces of the aggregates.
The overall investigation in this study was divided into four parts:
- Characterization of calcined periclase aggregates.
- Development of coating treatment methods.
- Examining the dependence of the hydration resistance on different boron concentrations, and
- Elucidation of the hydration mechanism"--Abstract, pages ii-iii.
Moore, Robert E., 1930-2003
Materials Science and Engineering
M.S. in Ceramic Engineering
University of Missouri--Rolla
xiv, 93 pages
© 1987 Chao-Min Cheng, All rights reserved.
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Cheng, Chao-Min, "Causal factors in the hydration susceptibility of periclase aggregates" (1987). Masters Theses. 473.
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