Analysis of the Causes of Deformation of the Stabilized Mixture During Its Floating

The article deals with the basic characteristics of the stabilized mixture in connection with its subsequent use in the restoration of the landscape (brownfields). The former open-cast mine was chosen as a model locality. The hydraulic way deposited the stabilized mixture. Two flue gas desulphurization systems were applied in parallel at the site: the desulphurization by the semi-dry absorption method and the fluidized bed combustion method. The mineralogical composition of the stabilized mixture was analyzed. When the stabilized mixture is deposited, some significant deformation phenomena are observed in its mass. Therefore, a basic analysis of their causes was carried out. From previous observations, the leading cause of deformation changes is the variability of deposited mixture and differences in float cycles between individual storage. Also, another cause of deformation is mainly related to volume changes associated with the stabilization and its re-flooding with water in the following storage phase.