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Gypsum paste was subjected to the temperatures up to 1000 °C and its microstructure was investigated by SEM microscopy. The volume and mass changes were also measured and the bulk density, porosity and residual strength were determined. After heating to the 1000 °C the structure of paste changed substantially, as can be seen in the micrographs. The structure of heated material is denser and the anhydrite crystals are bigger. The volume of the samples decreased more than 50%. The bulk density increased by 20%, whil...

Forest fires have an impact on forest stands, atmosphere and soils in forested areas. Many authors have established that the thermal effect on the near-surface layer of soil can have a negative impact both on the soil itself and the further development of grass stands and forest stands. It is necessary to develop systems for geoinformation monitoring, taking into account the thermophysical processes in the soil layer at the level of mathematical models. It is necessary to conduct experiments to verify such models....