Petrography analysis of aluminosilicate refractory concretes

Investigations by the methods of petrography of concrete aluminosilicate materials produced by the Semiluksky refractory plant, on a fireclay filler and an integral binder based on high-alumina cement, have been carried out. Microscopic studies have shown that as a result of the heat treatment of concrete up to 380 ° C in the binder, the dehydration processes are practically completed and in the samples fired at a temperature of 1000 ° C, the formation of a glass phase, mullitization and penetration of the binder into the filler chamotte are observed. After firing, the phase composition of the binder obtained from synthetic materials is similar to the composition of the clay binder of traditional fireclay firing materials. Il. 6, bibliography: 7 titles.