THE EFFECT OF DIFFERENT EXPOSURE CONDITIONS ON THE CHARACTERISTICS OF THE MINERAL MATRICES STABILIZING HAZARDOUS WASTE

Mineral binders are more and more often used in the difficult process of disposal of inorganic hazardous waste containing heavy metals. Composites solidifying hazardous waste are deposited in the environment, which exposes them to the interaction of many variable factors. The paper presents the effect of different exposure conditions on physical and mechanical properties of concrete stabilizing galvanic sewage sludge (GO). The effect of the cyclic freezing and thawing, carbon dioxide (carbonation) and high temperatures (200 °C, 400 °C, 600 °C) on the properties of stabilizing matrices has been described. The results, in most cases, show a loss of durability of composites solidifying sewage sludge (GO) by the influence of external conditions