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RhEOLOGIE OF hIGh PERFORMANCE ALUMINA AND SPINEL CASTABLES
https://doi.org/10.17073/1683-4518-2017-3-119-126
Abstract
Cement-based refractory mixes are used in a widespread range of applications and their share is still growing when compared to the total of refractory products. The satisfactory performance in use of castables is strongly dependent on their good workability for transport and casting. Poor flowability is often solved on site by high water additions. This, however, has a negative influence upon the desired properties. The developer of a refractory castable has to know the product properties he would like to achieve in the final application. This is taken into consideration when formulating to achieve good flowability. For example, this might be a matrix of a high alumina castable designed with high microsilica content to achieve mullite formation or a spinel containing castable for steel ladles where the use of reactive alumina is the only way to achieve high performance castables. The intention of this paper is not to suggest reactive alumina as the only solution for the design of high performance castables with good flowability. The focus is much more to provide a basic understanding of the impact of the matrix components on the rheology of castables with special focus on high performance alumina and spinel castables. Ill. 10. Ref. 19. Tab. 3.
About the Authors
M. SchnabelGermany
A. Buhr
Germany
J. Dutton
United Kingdom
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Supplementary files
For citation: Schnabel M., Buhr A., Dutton J. RhEOLOGIE OF hIGh PERFORMANCE ALUMINA AND SPINEL CASTABLES. NOVYE OGNEUPORY (NEW REFRACTORIES). 2017;(3):119-126. https://doi.org/10.17073/1683-4518-2017-3-119-126
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