Production of ceramic wall material based on burnt rocks and phosphoric slag without the use of natural traditional raw materials

The purpose of the work is to qualify the raw materials according to the main evaluation characteristics – shale clay as a plastic binder, ash and slag mixture as a burning additive, and phosphoric slag as a detergent for the production of ceramic wall materials, without using natural natural raw materials. An electron microscope JSM 6390A from Jeol (Japan) was used to diagnose waste for a microstructure of element-by-element chemical composition. In the petrographic diagnosis of raw materials, immersion liquids, transparent slips, full slips, and MIN-8 and MIN-7 microscopes were used. The raw materials used were waste from shale processing plants and from the burning of shale shale clay, ash and slag mixture and phosphorous slag. Experiments have confirmed that ceramic wall material cannot be classified as an M100 product without the involvement of solvents in the composition of only a single shale clay. It has been experimentally proven that the optimal composition for obtaining M125 grade bricks is a composition containing 18% phosphorous slag and 7% ash and slag mixture. A further increase in the amount of phosphorous slag, ash and slag mixture and, consequently, a decrease in the clay binder leads to a decrease in technical performance. Qualified utilization or recycling of hightonnage man-made raw materials of the fuel and energy complex is one of the most demanded solutions to the environmental problem.

phosphoric slag, ash and slag mixture, inter-shale clay, ceramic wall material