APPLICATION OF MECHANICALLY ACTIVATED FLY ASH IN CONSTRUCTION CERAMICS TECHNOLOGY

Abstract

The study examines the patterns governing the formation of the structure and properties of construction ceramics when using mechanically activated fly ash from thermal power plants. It is shown that preliminary mechanical activation leads to a significant increase in the reactivity of the ash due to an increase in dispersion and the accumulation of defects in the crystal structure. It has been established that introducing mechanically activated ash into the ceramic mass intensifies sintering processes, helps reduce the firing temperature, and promotes the formation of a denser material structure. Experimental confirmation has been provided for the increase in compressive strength and the reduction in water absorption of the samples at an optimal ash content. The obtained results indicate the high efficiency of using technogenic raw materials in the production of construction ceramics and allow us to consider mechanical activation as a promising method for the targeted control of structure formation.

Keywords: fly ash, mechanical activation, construction ceramics, sintering, structure, strength, technogenic raw materials.