TY JOUR TI Influence of coal waste on the porosity of heat-insulating materials based on interslate clay KW heat-insulating material KW slimes flotation coal enrichment KW interslate clay KW roasting KW density KW heat conductivity JO Technique and technology of silicates AU Abdrakhimova, E.S. AU Abdrakhimov, V.Z. PY 2016 IS 23 PB Individual Entrepreneur Svetlana Vasilievna Samchenko