Influence of Different Matrix Components on the Rheological and Mechanical Properties of High-Alumina LC Castables

Maria Webb-Janich, Udo Martin, Mario Bernard

Zschimmer & Schwarz GmbH & Co KG, Chemische Fabriken, 56112 Lahnstein


Volume 4, Issue 1, Pages 79 - 84


The development of high-quality low-cement refractory castables is the result of several aspects that influence the performance of the final product. The selection of suitable raw materials both for the ourse grains and for the matrix has a strong impact on the parameters. The coarse grains are responsible for the formation of the final structure, while the matrix components (cement, reactive aluminas and chemical additives including deflocculants, retardants or setting accelerators, etc.) enhance the characteristics of castables in application. In this paper, the focus is, therefore, just on high-alumina LCcastable with different matrix components and the effects of these components on the rheological and mechanical properties important for the production and installation process.


deflocculants, high-alumina LC castables


[1] Krebs, R.: Ungeformte feuerfeste Erzeugnisse - Einführung” Sankt Augustin, Jan. 2009


Göller Verlag GmbH