Rheology of High Performance Alumina and Spinel Castables

Marion Schnabel, Andreas Buhr, Jerry Dutton

Almatis GmbH, 60528 Frankfurt/Germany


Volume 4, Issue 2, Pages 95 - 100


The article provides 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. A broad particle size distribution of the matrix fines helps to achieve optimised packing and therefore a high solids content with low viscosity of the suspension. As solids content increases the amount of water is consequently reduced. Additives are required to counterbalance agglomeration of the particles in a suspension.


alumina and spinel castables, workability, rheology


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