Certain aspects in the use of refractory materials and their waste products in industry

New types of refractory articles and coatings that have been created in recent years and that possess high heat-resistant, physico-chemical, and mechanical properties when in use in corrosive media with high heat demand are presented. Data on the use of refractory scrap as a secondary raw material for the production of refractory materials as well as for the manufacture of runner clay, mortar, and powders for different purposes are presented.