CHARACTERIZATION OF CEMENT KILN DUST FROM BULGARIAN CEMENT PLANTS

Abstract

The cement production is accompanied by generation of fine dust, known as cement kiln dust (CKD), formed during the high-temperature processing of raw materials in the rotary kilns. This study focusses on characterizing CKD from Bulgarian cement plants and explore its physical and chemical properties. The study includes analysing CKD samples from three local cement plants using techniques such as laser dif fraction, XRD, XRF, FT-IR, and SEM. Variations have been observed in their physical, chemical, and mineralogical properties likely due to differences in raw materials, kiln conditions and the use of alternative fuels. This research provides valuable local data that can guide sustainable CKD management and utilization strategies, contributing to reduced waste and environmental impact in cement production.