Influence of Thermally Treated Asbestos-Containing Materials on Cement Mortars Properties

This paper presents the potential use of calcined cement–asbestos waste as an additive in cement mortars. Due to its harmful asbestos content, cement–asbestos waste poses a significant environmental challenge. One method of disposal is high-temperature calcination, which degrades the structure of asbestos fibers and removes their carcinogenic properties. After appropriate thermal treatment, this material can be used as a mineral additive in cement mixtures. This study analyzed the physical and chemical properties of the calcined waste and its impact on the basic strength parameters of cement mortars. The results indicate that, with appropriate dosing, calcined cement–asbestos waste can serve as a useful additive or filler without significantly impairing—and in some cases even improving—the mechanical properties of the mortars. The developed solution aligns with the principles of the circular economy, enabling the safe and effective management of hazardous waste.