Refractory castables based on barium aluminate cements

Abstract

In this study the results of the structure, shrinkage and physical and mechanical properties of concrete obtained from dry mixes on the base of aluminate cements for self-leveling floors are presented. Principle possibility of obtaining unshrinkable concretes with the formation of ettringite using aluminate cement, gypsum and modern superplasticizers. Studies of free shrinkage of mixed binder showed that binder can be attribute to binders with compensated shrinkage. Cracking resistance of the composition is provided by the fact that the vast expansion in the initial stage of curing and shrinkage of the final stage is in 5...10 times lower than these values for gypsum and portland cement.

Effect of High‐Energy Ball Milling and Silica Fume Addition inBaCO3–Al2O3. Part I: Formation of Cementing Phases

“…Applications of these types of castables are limited to 1800°C . Beyond this temperature barium aluminate cement (BAC) has proven more reliable cement for the formation of refractory concretes with better chemical and mechanical properties . BAC has higher refractoriness than CAC with similar cementing properties .…”

Self-formed mullite containing refractory barium silicate cements and their castable applications

“…Many researchers [6][7][8][9] have studied in detail different types of calcium aluminate and barium aluminate cements. However, barium silicate cement is covered with few patents.…”